# Ubuntu, Windows 8, FusionAuth vs Auth0 Comparison

| | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Star Rating** | 4.5 out of 5 | 3.7 out of 5 | 4.5 out of 5 | 4.3 out of 5 | 
| **Total Reviews** | 2,389 | 576 | 139 | 267 | 
| **Largest Market Segment** | Small-Business (47.3% of reviews) | Small-Business (45.7% of reviews) | Small-Business (47.7% of reviews) | Small-Business (52.0% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | Free | Free | 

---
## Top Pros & Cons

### Ubuntu

Pros:
- Ease of Use (334 reviews)
- Linux/Ubuntu OS (298 reviews)

Cons:
- Compatibility Issues (140 reviews)
- Limited Software (102 reviews)

### Windows 8

Pros:
- Speed/Performance (18 reviews)
- Ease of Use (13 reviews)

Cons:
- Unfriendly Interface (14 reviews)
- Usage Difficulty (11 reviews)

### FusionAuth

Pros:
- Ease of Use (45 reviews)
- Features (36 reviews)

Cons:
- Complexity (25 reviews)
- Difficult Learning (18 reviews)

### Auth0

Pros:
- Ease of Use (52 reviews)
- Security (46 reviews)

Cons:
- Expensive (26 reviews)
- Cost (19 reviews)

---
## Ratings Comparison
| Rating | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
  | **Meets Requirements** | 9.0 (1881 reviews) | 7.8 (429 reviews) | 9.0 (113 reviews) | 8.8 (202 reviews) | 
  | **Ease of Use** | 8.7 (1898 reviews) | 7.6 (439 reviews) | 8.7 (114 reviews) | 8.6 (206 reviews) | 
  | **Ease of Setup** | 9.0 (911 reviews) | 8.2 (176 reviews) | 8.5 (108 reviews) | 8.5 (173 reviews) | 
  | **Ease of Admin** | 8.7 (649 reviews) | 7.6 (114 reviews) | 8.7 (89 reviews) | 8.4 (116 reviews) | 
  | **Quality of Support** | 8.3 (1725 reviews) | 7.6 (391 reviews) | 9.0 (99 reviews) | 8.6 (185 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.7 (568 reviews) | 7.3 (98 reviews) | 9.3 (85 reviews) | 8.3 (103 reviews) | 
  | **Product Direction (% positive)** | 9.1 (1779 reviews) | 6.0 (419 reviews) | 8.9 (110 reviews) | 8.3 (196 reviews) | 

---
## Pricing

### Ubuntu

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### Windows 8

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### FusionAuth

#### Entry-Level Pricing

Plan: Community

Price: Free

Description: FusionAuth Community is free and unlimited. It has the core authentication features most applications need.

Key Features:
- Core authentication standards & features
- Community support (forums, Slack, Github)

[Browse all 4 editions](https://www.g2.com/products/fusionauth/pricing)

#### Free Trial

Yes

### Auth0

#### Entry-Level Pricing

Plan: Free Plan

Price: Free

Description: Get Auth0 for free with up to 25,000 active users, unlimited logins. No credit card required.*

Key Features:
- 1 Custom Domain*
- Secure Agentic AI workflows
- Passwordless Authentication

[Browse all 4 editions](https://www.g2.com/products/auth0/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Single Sign-On (SSO)

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.8/10 | 70 |
| **Auth0** | 8.8/10 | 98 |

#### Authentication Options

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Authentication User experience** | Not enough data | Not enough data | 8.8 (63 reviews) | 9.1 (78 reviews) | 
| **Supports Required Authentication systems** | Not enough data | Not enough data | 9.0 (61 reviews) | 8.6 (69 reviews) | 
| **Multi-Factor Authentication** | Not enough data | Not enough data | 9.0 (58 reviews) | 8.8 (64 reviews) | 
| **Supports Required Authentication Methods/Protocols** | Not enough data | Not enough data | 9.1 (58 reviews) | 9.0 (66 reviews) | 
| **Federation/SAML support (idp)** | Not enough data | Not enough data | 8.8 (56 reviews) | 8.7 (55 reviews) | 
| **Federation/SAML support (sp)** | Not enough data | Not enough data | 9.0 (53 reviews) | 8.8 (51 reviews) | 

#### Access Control Types

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Endpoint access** | Not enough data | Not enough data | 8.7 (54 reviews) | 8.5 (62 reviews) | 
| **Local Access** | Not enough data | Not enough data | 8.6 (54 reviews) | 8.9 (57 reviews) | 
| **Remote Access** | Not enough data | Not enough data | 8.5 (53 reviews) | 8.6 (54 reviews) | 
| **Partner Access** | Not enough data | Not enough data | 8.5 (47 reviews) | 8.9 (45 reviews) | 
| **Supports BYOD users** | Not enough data | Not enough data | 8.7 (52 reviews) | 8.9 (41 reviews) | 

#### Administration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Ease of installation on server** | Not enough data | Not enough data | 8.6 (61 reviews) | 9.1 (61 reviews) | 
| **Password Policy Enforcement** | Not enough data | Not enough data | 9.2 (57 reviews) | 9.0 (66 reviews) | 
| **Administration Console** | Not enough data | Not enough data | 8.8 (60 reviews) | 8.8 (71 reviews) | 
| **Ease of connecting applications** | Not enough data | Not enough data | 8.8 (57 reviews) | 9.1 (72 reviews) | 
| **Self Service Password Administration** | Not enough data | Not enough data | 8.8 (58 reviews) | 9.0 (65 reviews) | 

#### Platform

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Multiple Operating system support** | Not enough data | Not enough data | 8.9 (50 reviews) | 8.9 (58 reviews) | 
| **Multi-Domain Support** | Not enough data | Not enough data | 9.0 (52 reviews) | 8.8 (58 reviews) | 
| **Cross Browser support** | Not enough data | Not enough data | 9.1 (54 reviews) | 8.8 (69 reviews) | 
| **Fail over protection** | Not enough data | Not enough data | 8.8 (50 reviews) | 8.7 (57 reviews) | 
| **Reporting** | Not enough data | Not enough data | 8.2 (57 reviews) | 8.4 (64 reviews) | 
| **Auditing** | Not enough data | Not enough data | 8.3 (54 reviews) | 8.3 (63 reviews) | 
| **Third Party Web Services support** | Not enough data | Not enough data | 8.5 (51 reviews) | 8.8 (52 reviews) | 

### User Provisioning and Governance Tools

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.6/10 | 12 |
| **Auth0** | 8.6/10 | 24 |

#### User on/off Boarding

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Self Service Access requests** | Not enough data | Not enough data | 8.6 (6 reviews) | 8.0 (17 reviews) | 
| **Smart/Automated Provisioning** | Not enough data | Not enough data | 8.6 (6 reviews) | 8.9 (18 reviews) | 
| **Role Management** | Not enough data | Not enough data | 8.7 (10 reviews) | 8.9 (15 reviews) | 
| **Policy Management** | Not enough data | Not enough data | 9.3 (7 reviews) | 8.9 (15 reviews) | 
| **Access Termination** | Not enough data | Not enough data | 9.4 (8 reviews) | 8.5 (13 reviews) | 
| **Approval Workflows** | Not enough data | Not enough data | 7.8 (6 reviews) | 8.2 (16 reviews) | 

#### User Maintenance

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Self Service Password Reset** | Not enough data | Not enough data | 8.9 (11 reviews) | 8.9 (21 reviews) | 
| **Bulk Changes** | Not enough data | Not enough data | 9.0 (8 reviews) | 8.5 (19 reviews) | 
| **Bi-directional Identity Synchronization** | Not enough data | Not enough data | 8.1 (7 reviews) | 8.4 (16 reviews) | 

#### Governance

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Identifies and Alerts for Threats** | Not enough data | Not enough data | 7.9 (7 reviews) | 8.5 (17 reviews) | 
| **Compliance Audits** | Not enough data | Not enough data | 8.1 (6 reviews) | 8.6 (15 reviews) | 

#### Administration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Reporting** | Not enough data | Not enough data | 8.1 (9 reviews) | 8.1 (17 reviews) | 
| **Mobile App** | Not enough data | Not enough data | Feature Not Available | 8.3 (12 reviews) | 
| **Ease of set up for target systems** | Not enough data | Not enough data | 8.3 (8 reviews) | 9.6 (16 reviews) | 
| **APIs** | Not enough data | Not enough data | 9.2 (11 reviews) | 8.9 (19 reviews) | 

### Multi-Factor Authentication (MFA)

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.0/10 | 54 |
| **Auth0** | 8.9/10 | 54 |

#### Authentication type

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **SMS-Based** | Not enough data | Not enough data | 8.4 (43 reviews) | 8.5 (36 reviews) ✓ Verified | 
| **Voice-Based Telephony** | Not enough data | Not enough data | 6.8 (37 reviews) | 8.7 (31 reviews) | 
| **Email-Based** | Not enough data | Not enough data | 9.2 (48 reviews) | 9.2 (37 reviews) ✓ Verified | 
| **Hardware Token-Based** | Not enough data | Not enough data | 7.2 (39 reviews) | 8.7 (33 reviews) | 
| **Software Token** | Not enough data | Not enough data | 8.4 (43 reviews) | 9.0 (36 reviews) ✓ Verified | 
| **Biometric Factor** | Not enough data | Not enough data | 7.6 (37 reviews) | 9.0 (31 reviews) | 
| **Mobile-Push** | Not enough data | Not enough data | 7.3 (34 reviews) | 8.9 (33 reviews) ✓ Verified | 
| **Risk-Based Authentication** | Not enough data | Not enough data | 8.1 (35 reviews) | 8.8 (31 reviews) ✓ Verified | 

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Multi-Device Sync** | Not enough data | Not enough data | 8.1 (36 reviews) | 8.7 (35 reviews) | 
| **Backup** | Not enough data | Not enough data | 8.0 (38 reviews) | 8.9 (34 reviews) | 

#### Implementation

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Easy Setup** | Not enough data | Not enough data | 8.5 (49 reviews) | 9.3 (43 reviews) ✓ Verified | 
| **Mobile SDK** | Not enough data | Not enough data | Not enough data | 8.8 (35 reviews) ✓ Verified | 
| **Web SDK** | Not enough data | Not enough data | 8.3 (42 reviews) | 8.7 (31 reviews) | 

### Biometric Authentication

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.5/10 | 6 |
| **Auth0** | N/A | N/A |

#### Integration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Uses Open Standards** | Not enough data | Not enough data | 8.3 (6 reviews) | Not enough data | 
| **Mobile SDK** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Workforce Authentication** | Not enough data | Not enough data | 8.3 (5 reviews) | Not enough data | 
| **Customer Authentication** | Not enough data | Not enough data | 8.6 (6 reviews) | Not enough data | 

#### Administration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Encryption** | Not enough data | Not enough data | 8.6 (6 reviews) | Not enough data | 
| **Audit Trails** | Not enough data | Not enough data | 9.2 (6 reviews) | Not enough data | 
| **Regulatory Compliance** | Not enough data | Not enough data | 8.1 (6 reviews) | Not enough data | 

### Risk-Based Authentication (RBA)

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | 9.2/10 | 17 |

#### Administration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Bi-Directional Identity Synchronization** | Not enough data | Not enough data | Not enough data | 9.2 (13 reviews) | 
| **Policy Management** | Not enough data | Not enough data | Not enough data | 9.1 (15 reviews) | 
| **Cloud Directory** | Not enough data | Not enough data | Not enough data | 9.2 (14 reviews) | 
| **Application Integrations** | Not enough data | Not enough data | Not enough data | 9.0 (8 reviews) | 

### Cloud Management Platforms

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 8.6/10 | 45 |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Cloud Consolidation** | 8.9 (38 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cloud Orchestration** | 8.8 (40 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cloud Optimization** | 8.7 (39 reviews) | Not enough data | Not enough data | Not enough data | 

#### Management

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Cloud Cost Analytics** | 8.8 (39 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cloud Security** | 8.9 (38 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cloud Resource Management** | 8.7 (36 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cloud Backup and Recovery** | 8.7 (39 reviews) | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Cloud Management Platforms

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Autonomous Task Execution** | 8.1 (24 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | 8.2 (24 reviews) | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | 8.3 (24 reviews) | Not enough data | Not enough data | Not enough data | 

### Password Policy Enforcement

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 7.4/10 | 21 |
| **Auth0** | N/A | N/A |

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Active Directory integration** | Not enough data | Not enough data | 7.5 (17 reviews) | Not enough data | 
| **LDAP integration** | Not enough data | Not enough data | 7.7 (14 reviews) | Not enough data | 
| **Hacker dictionary** | Not enough data | Not enough data | 7.7 (13 reviews) | Not enough data | 
| **Custom blacklist dictionary** | Not enough data | Not enough data | 6.3 (12 reviews) | Not enough data | 

#### Administration

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Password synchronization** | Not enough data | Not enough data | 6.2 (14 reviews) | Not enough data | 
| **Centralized management** | Not enough data | Not enough data | 8.2 (19 reviews) | Not enough data | 
| **Group policy complexity controls** | Not enough data | Not enough data | 7.1 (15 reviews) | Not enough data | 
| **Multiple policies** | Not enough data | Not enough data | 7.3 (15 reviews) | Not enough data | 
| **Multi-lingual** | Not enough data | Not enough data | 8.6 (15 reviews) | Not enough data | 

#### Compliance

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **NIST-compliant** | Not enough data | Not enough data | Feature Not Available | Not enough data | 
| **NCSC-compliant** | Not enough data | Not enough data | Feature Not Available | Not enough data | 
| **Section 508-compliant** | Not enough data | Not enough data | Feature Not Available | Not enough data | 

### Customer Identity and Access Management (CIAM)

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.5/10 | 56 |
| **Auth0** | 8.8/10 | 98 |

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Self-registration and self-service** | Not enough data | Not enough data | 8.1 (43 reviews) | 9.1 (52 reviews) ✓ Verified | 
| **Authentication** | Not enough data | Not enough data | 9.2 (54 reviews) | 9.3 (83 reviews) ✓ Verified | 
| **Scalability** | Not enough data | Not enough data | 9.0 (49 reviews) | 8.9 (69 reviews) ✓ Verified | 
| **Consent and preference management** | Not enough data | Not enough data | 8.4 (35 reviews) | 8.8 (47 reviews) | 
| **Social login** | Not enough data | Not enough data | 8.1 (40 reviews) | 9.1 (61 reviews) ✓ Verified | 
| **Customer data linking** | Not enough data | Not enough data | 7.9 (39 reviews) | 8.7 (53 reviews) ✓ Verified | 

#### AI Authentication Risk Management - Customer Identity and Access Management (CIAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Adaptive MFA** | Not enough data | Not enough data | Not enough data | 9.3 (10 reviews) | 
| **Anomaly Detection** | Not enough data | Not enough data | Not enough data | 8.5 (10 reviews) | 
| **Fraudulent Login Detection** | Not enough data | Not enough data | Not enough data | 9.0 (10 reviews) | 
| **Adaptive Authentication Policies** | Not enough data | Not enough data | Not enough data | 8.1 (9 reviews) | 
| **Risk-Based Authentication** | Not enough data | Not enough data | Not enough data | 9.2 (10 reviews) | 

#### AI Biometric & Behavioral Analysis - Customer Identity and Access Management (CIAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Behavioral Biometric Analysis** | Not enough data | Not enough data | Feature Not Available | 8.6 (7 reviews) | 
| **Liveness Detection** | Not enough data | Not enough data | Feature Not Available | 7.8 (9 reviews) | 

#### AI Context-Aware Security Controls - Customer Identity and Access Management (CIAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Account Recovery Assistants** | Not enough data | Not enough data | Feature Not Available | 8.8 (8 reviews) | 
| **Constraint Enforcement** | Not enough data | Not enough data | Feature Not Available | 9.0 (8 reviews) | 

### Passwordless Authentication

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 6.6/10 | 14 |
| **Auth0** | N/A | N/A |

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **FIDO2-compliant** | Not enough data | Not enough data | 6.3 (9 reviews) | Not enough data | 
| **Works with hardware security keys** | Not enough data | Not enough data | 6.7 (9 reviews) | Not enough data | 
| **Multiple authentication methods** | Not enough data | Not enough data | 8.1 (13 reviews) | Not enough data | 
| **Offline or no-phone solution** | Not enough data | Not enough data | 5.3 (10 reviews) | Not enough data | 

### Identity and Access Management (IAM)

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | N/A | N/A |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | 8.6/10 | 64 |
| **Auth0** | 9.1/10 | 75 |

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **User provisioning** | Not enough data | Not enough data | 8.6 (58 reviews) | 8.9 (54 reviews) | 
| **Password manager** | Not enough data | Not enough data | 7.9 (53 reviews) | Feature Not Available | 
| **Single Sign-on** | Not enough data | Not enough data | 9.2 (57 reviews) | 9.0 (53 reviews) | 
| **Enforces policies** | Not enough data | Not enough data | 9.0 (57 reviews) | 8.8 (51 reviews) | 
| **Authentication** | Not enough data | Not enough data | 9.3 (59 reviews) | 9.3 (62 reviews) | 
| **Multi-factor authentication** | Not enough data | Not enough data | 9.0 (52 reviews) | 9.1 (49 reviews) | 

####  Type

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **On-premises solution** | Not enough data | Not enough data | 8.3 (52 reviews) | Feature Not Available | 
| **Cloud-solution** | Not enough data | Not enough data | 8.8 (53 reviews) | 8.9 (49 reviews) | 

####  Reporting

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Tracking** | Not enough data | Not enough data | 8.4 (50 reviews) | 9.1 (50 reviews) | 
| **Reporting** | Not enough data | Not enough data | 8.4 (55 reviews) | 8.5 (52 reviews) | 
| **Access & Permission Change Reporting** | Not enough data | Not enough data | 8.3 (10 reviews) | 9.6 (9 reviews) | 
| **Compliance & Audit Trail Export** | Not enough data | Not enough data | 8.2 (10 reviews) | 9.1 (9 reviews) | 

#### Authentication & Authorization - Identity and Access Management (IAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Adaptive & Contextual Access Control** | Not enough data | Not enough data | 8.3 (10 reviews) | 9.6 (9 reviews) | 

#### Administration & Governance - Identity and Access Management (IAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Identity Lifecycle Management** | Not enough data | Not enough data | 8.8 (10 reviews) | 9.8 (9 reviews) | 
| **Self‑Service Account Management** | Not enough data | Not enough data | 8.8 (10 reviews) | 8.5 (9 reviews) | 

#### Generative AI - Identity and Access Management (IAM)

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **AI‑Driven Access Anomaly Detection** | Not enough data | Not enough data | Feature Not Available | 9.4 (9 reviews) | 
| **Automated Policy Tuning** | Not enough data | Not enough data | Feature Not Available | 8.7 (9 reviews) | 
| **Predictive Role Recommendations** | Not enough data | Not enough data | Feature Not Available | Feature Not Available | 

### Server Virtualization

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 8.8/10 | 93 |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Performance

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Scalability** | 9.4 (75 reviews) | Not enough data | Not enough data | Not enough data | 
| **Portability** | 9.4 (71 reviews) | Not enough data | Not enough data | Not enough data | 
| **Data Recovery** | 8.7 (70 reviews) | Not enough data | Not enough data | Not enough data | 

#### Functionality

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **OS Integration** | 9.3 (71 reviews) | Not enough data | Not enough data | Not enough data | 
| **Resource Saving** | 9.1 (73 reviews) | Not enough data | Not enough data | Not enough data | 
| **Performance Management** | 9.2 (69 reviews) | Not enough data | Not enough data | Not enough data | 
| **Security** | 9.5 (71 reviews) | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Server Virtualization

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Autonomous Task Execution** | 8.1 (42 reviews) | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | 8.4 (42 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | 8.5 (43 reviews) | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | 8.3 (42 reviews) | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | 8.3 (41 reviews) | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | 8.5 (42 reviews) | Not enough data | Not enough data | Not enough data | 

### Container Engine

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 9.0/10 | 59 |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Application Support

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Deployment** | 9.2 (48 reviews) | Not enough data | Not enough data | Not enough data | 
| **Interface support** | 8.8 (40 reviews) | Not enough data | Not enough data | Not enough data | 
| **Processor support** | 9.3 (36 reviews) | Not enough data | Not enough data | Not enough data | 
| **Application Support** | 9.1 (46 reviews) | Not enough data | Not enough data | Not enough data | 

#### System Capability

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Self Healing High Availability** | 8.7 (33 reviews) | Not enough data | Not enough data | Not enough data | 
| **Orchestration** | 9.0 (40 reviews) | Not enough data | Not enough data | Not enough data | 
| **Scalability** | 9.2 (38 reviews) | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Automatic Security Updates** | 9.1 (41 reviews) | Not enough data | Not enough data | Not enough data | 
| **Security updates** | 9.0 (41 reviews) | Not enough data | Not enough data | Not enough data | 

### Operating System

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 8.8/10 | 279 |
| **Windows 8** | 8.2/10 | 55 |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Memory Management - Operating System

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **RAM management** | 9.1 (200 reviews) | 8.4 (42 reviews) | Not enough data | Not enough data | 

#### Device Management - Operating System

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **I/O management** | 8.7 (219 reviews) | 8.1 (35 reviews) | Not enough data | Not enough data | 

#### Backup and Recovery - Operating System

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Data backup** | 8.6 (173 reviews) | 8.5 (35 reviews) | Not enough data | Not enough data | 

#### Error Detection - Operating System

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **System operations monitoring** | 8.8 (188 reviews) | 7.6 (34 reviews) | Not enough data | Not enough data | 

### IoT Operating Systems

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 8.9/10 | 41 |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Security

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Access Controls** | 8.8 (34 reviews) | Not enough data | Not enough data | Not enough data | 
| **Network Security** | 9.3 (35 reviews) | Not enough data | Not enough data | Not enough data | 
| **Compliance** | 8.9 (32 reviews) | Not enough data | Not enough data | Not enough data | 
| **Cryptography** | 8.5 (31 reviews) | Not enough data | Not enough data | Not enough data | 

### Security Compliance

| Product | Score | Reviews |
|---|---|---|
| **Ubuntu** | 8.4/10 | 49 |
| **Windows 8** | N/A | N/A |
| **FusionAuth** | N/A | N/A |
| **Auth0** | N/A | N/A |

#### Generative AI - Security Compliance

| Feature | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Predictive Risk** | 8.3 (35 reviews) | Not enough data | Not enough data | Not enough data | 
| **Automated Documentation** | 8.4 (33 reviews) | Not enough data | Not enough data | Not enough data | 

---
## Categories

**Unique to Ubuntu (6):** [Security Compliance Software](https://www.g2.com/categories/security-compliance), [Cloud Management Platforms](https://www.g2.com/categories/cloud-management-platforms), [IoT Operating Systems](https://www.g2.com/categories/iot-operating-systems), [Operating Systems](https://www.g2.com/categories/operating-system), [Server Virtualization Software](https://www.g2.com/categories/server-virtualization), [Container Engine Software](https://www.g2.com/categories/container-engine)

**Unique to Windows 8 (1):** [Operating Systems](https://www.g2.com/categories/operating-system)

**Unique to FusionAuth (9):** [Passwordless Authentication Software](https://www.g2.com/categories/passwordless-authentication), [Password Policy Enforcement Software](https://www.g2.com/categories/password-policy-enforcement), [Biometric Authentication Software](https://www.g2.com/categories/biometric-authentication), [Customer Identity and Access Management (CIAM) Software](https://www.g2.com/categories/customer-identity-and-access-management-ciam), [Multi-Factor Authentication (MFA) Software](https://www.g2.com/categories/multi-factor-authentication-mfa), [Identity and Access Management (IAM) Software](https://www.g2.com/categories/identity-and-access-management-iam), [User Provisioning and Governance Tools](https://www.g2.com/categories/user-provisioning-and-governance-tools), [Single Sign-On (SSO) Solutions](https://www.g2.com/categories/single-sign-on-sso), [Risk-Based Authentication Software](https://www.g2.com/categories/risk-based-authentication-rba)

**Unique to Auth0 (6):** [Customer Identity and Access Management (CIAM) Software](https://www.g2.com/categories/customer-identity-and-access-management-ciam), [Multi-Factor Authentication (MFA) Software](https://www.g2.com/categories/multi-factor-authentication-mfa), [Identity and Access Management (IAM) Software](https://www.g2.com/categories/identity-and-access-management-iam), [Risk-Based Authentication Software](https://www.g2.com/categories/risk-based-authentication-rba), [User Provisioning and Governance Tools](https://www.g2.com/categories/user-provisioning-and-governance-tools), [Single Sign-On (SSO) Solutions](https://www.g2.com/categories/single-sign-on-sso)


---
## Reviewer Demographics

### By Company Size

| Segment | Ubuntu | Windows 8 | FusionAuth | Auth0 | 
|---|---|---|---|---|
| **Small-Business** | 47.3% | 45.7% | 47.7% | 52.0% | 
| **Mid-Market** | 33.1% | 28.3% | 46.2% | 27.6% | 
| **Enterprise** | 19.6% | 26.0% | 6.1% | 20.3% | 

### By Industry

#### Ubuntu

- **Information Technology and Services:** 26.3%
- **Computer Software:** 25.1%
- **Computer & Network Security:** 5.2%
- **Higher Education:** 3.5%
- **Internet:** 2.9%
- **Telecommunications:** 2.5%
- **Financial Services:** 2.1%
- **Program Development:** 1.8%
- **Education Management:** 1.8%
- **Research:** 1.5%
- **Other:** 27.3%

#### Windows 8

- **Information Technology and Services:** 20.0%
- **Computer Software:** 13.7%
- **Education Management:** 4.6%
- **Higher Education:** 4.1%
- **Computer & Network Security:** 3.5%
- **Telecommunications:** 3.0%
- **Accounting:** 2.6%
- **Banking:** 2.4%
- **Hospital & Health Care:** 2.4%
- **Financial Services:** 2.2%
- **Other:** 41.4%

#### FusionAuth

- **Computer Software:** 24.0%
- **Information Technology and Services:** 17.6%
- **Financial Services:** 8.8%
- **Computer & Network Security:** 4.8%
- **Consumer Services:** 4.0%
- **Accounting:** 3.2%
- **Hospital & Health Care:** 3.2%
- **Marketing and Advertising:** 3.2%
- **Telecommunications:** 2.4%
- **Education Management:** 2.4%
- **Other:** 26.4%

#### Auth0

- **Computer Software:** 26.4%
- **Information Technology and Services:** 16.5%
- **Financial Services:** 7.0%
- **Computer & Network Security:** 4.1%
- **Marketing and Advertising:** 3.7%
- **Internet:** 2.9%
- **Education Management:** 2.9%
- **Banking:** 2.1%
- **Online Media:** 2.1%
- **Logistics and Supply Chain:** 1.7%
- **Other:** 30.6%

---
## Alternatives

### Alternatives to Ubuntu

- [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews)
- [Windows 11](https://www.g2.com/products/windows-11/reviews) — 4.5/5 stars (4280 reviews)
- [Apple iOS](https://www.g2.com/products/apple-ios/reviews) — 4.6/5 stars (1563 reviews)
- [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews)
- [Windows 7](https://www.g2.com/products/windows-7/reviews) — 4.2/5 stars (894 reviews)
- [macOS Sierra](https://www.g2.com/products/apple-macos-sierra/reviews) — 4.5/5 stars (483 reviews)
- [CentOS](https://www.g2.com/products/centos/reviews) — 4.4/5 stars (426 reviews)
- [Oracle Linux](https://www.g2.com/products/oracle-linux/reviews) — 4.4/5 stars (346 reviews)
- [Chrome OS](https://www.g2.com/products/chrome-os/reviews) — 4.5/5 stars (716 reviews)
- [Apple OS X El Capitan](https://www.g2.com/products/apple-os-x-el-capitan/reviews) — 4.4/5 stars (262 reviews)

### Alternatives to Windows 8

- [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews)
- [Oracle Linux](https://www.g2.com/products/oracle-linux/reviews) — 4.4/5 stars (346 reviews)
- [Apple iOS](https://www.g2.com/products/apple-ios/reviews) — 4.6/5 stars (1563 reviews)
- [Apple OS X Mountain Lion](https://www.g2.com/products/apple-os-x-mountain-lion/reviews) — 4.2/5 stars (220 reviews)
- [CentOS](https://www.g2.com/products/centos/reviews) — 4.4/5 stars (426 reviews)
- [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews)
- [Lubuntu](https://www.g2.com/products/lubuntu/reviews) — 4.4/5 stars (82 reviews)
- [Apple OS X El Capitan](https://www.g2.com/products/apple-os-x-el-capitan/reviews) — 4.4/5 stars (262 reviews)
- [Fedora](https://www.g2.com/products/fedora/reviews) — 4.4/5 stars (211 reviews)
- [macOS Sierra](https://www.g2.com/products/apple-macos-sierra/reviews) — 4.5/5 stars (483 reviews)

### Alternatives to FusionAuth

- [Frontegg](https://www.g2.com/products/frontegg/reviews) — 4.8/5 stars (363 reviews)
- [OneLogin](https://www.g2.com/products/onelogin/reviews) — 4.4/5 stars (290 reviews)
- [Microsoft Entra ID](https://www.g2.com/products/microsoft-entra-id/reviews) — 4.5/5 stars (909 reviews)
- [Okta](https://www.g2.com/products/okta/reviews) — 4.5/5 stars (1227 reviews)
- [Cisco Duo](https://www.g2.com/products/cisco-duo/reviews) — 4.5/5 stars (515 reviews)
- [JumpCloud](https://www.g2.com/products/jumpcloud/reviews) — 4.5/5 stars (3971 reviews)
- [LastPass](https://www.g2.com/products/lastpass/reviews) — 4.5/5 stars (2047 reviews)
- [1Password](https://www.g2.com/products/1password/reviews) — 4.6/5 stars (1795 reviews)
- [Google Authenticator](https://www.g2.com/products/google-authenticator/reviews) — 4.6/5 stars (579 reviews)
- [NordPass Business](https://www.g2.com/products/nordpass-business/reviews) — 4.5/5 stars (642 reviews)

### Alternatives to Auth0

- [OneLogin](https://www.g2.com/products/onelogin/reviews) — 4.4/5 stars (290 reviews)
- [Microsoft Entra ID](https://www.g2.com/products/microsoft-entra-id/reviews) — 4.5/5 stars (909 reviews)
- [Cisco Duo](https://www.g2.com/products/cisco-duo/reviews) — 4.5/5 stars (515 reviews)
- [Frontegg](https://www.g2.com/products/frontegg/reviews) — 4.8/5 stars (363 reviews)
- [Ping Identity](https://www.g2.com/products/ping-identity/reviews) — 4.4/5 stars (119 reviews)
- [JumpCloud](https://www.g2.com/products/jumpcloud/reviews) — 4.5/5 stars (3971 reviews)
- [WSO2 Identity Platform](https://www.g2.com/products/wso2-identity-platform/reviews) — 4.5/5 stars (108 reviews)
- [LastPass](https://www.g2.com/products/lastpass/reviews) — 4.5/5 stars (2047 reviews)
- [WorkOS](https://www.g2.com/products/workos/reviews) — 4.5/5 stars (15 reviews)
- [CyberArk Workforce Identity](https://www.g2.com/products/cyberark-workforce-identity/reviews) — 4.5/5 stars (130 reviews)

---
## Top Discussions

### Ubuntu

- Title: [I'm having trouble installing applications on Ubuntu. What are the best practices for a beginner?](https://www.g2.com/discussions/i-m-having-trouble-installing-applications-on-ubuntu-what-are-the-best-practices-for-a-beginner) — 7 comments, 1 upvote
  > **Top comment:** "Please let me know the error, I can help you in installing application on Ubuntu."
- Title: [Is Ubuntu really good OS comoared to other Linux distros?](https://www.g2.com/discussions/is-ubuntu-really-good-os-comoared-to-other-linux-distros) — 7 comments, 2 upvotes
  > **Top comment:** "Hi Avinash,

The packaging system of Ubuntu is inherited from Debian and is very well structured and maintained, making it relatively seldom necessary to..."
- Title: [What is Ubuntu used for?](https://www.g2.com/discussions/what-is-ubuntu-used-for) — 6 comments, 2 upvotes
  > **Top comment:** "operating system"
- Title: [What is Ubuntu Desktop used for?](https://www.g2.com/discussions/what-is-ubuntu-desktop-used-for) — 6 comments, 2 upvotes
  > **Top comment:** "Thanks you
"
- Title: [What is special about Ubuntu?](https://www.g2.com/discussions/what-is-special-about-ubuntu) — 5 comments, 5 upvotes
  > **Top comment:** "is one of the stable linux."

### Windows 8

- Title: [Is Windows 8 a good operating system?](https://www.g2.com/discussions/is-windows-8-a-good-operating-system) — 2 comments, 1 upvote
  > **Top comment:** "Yes"
- Title: [Many are curious about the advantages of Windows 8 compared to the previous Windows, namely Windows 7. Here is more information about the advantages of Windows 8 compared to Windows 7 that has been summarized.](https://www.g2.com/discussions/tak-sedikit-yang-penasaran-dengan-kelebihan-windows-8-jika-dibandingkan-dengan-windows-sebelumnya-yakni-windows-7-berikut-ini-lebih-lanjut-informasi-mengenai-kelebihan-windows-8-dibanding-windows-7-yang-telah-dirangkum) — 2 comments, 1 upvote
  > **Top comment:** "Because Windows 8 is the best."
- Title: [Windows 8 recommended software](https://www.g2.com/discussions/windows-8-recommended-software) — 2 comments, 2 upvotes
  > **Top comment:** "I recommend it 100%"
- Title: [What is Windows 8 used for?](https://www.g2.com/discussions/what-is-windows-8-used-for) — 1 comment
  > **Top comment:** "Windows 8 is an operating systems used on computers. we can use this for office use  / personal use. Depend on our requirement we can select the versions of..."
- Title: [What is Windows 8.1 and its features?](https://www.g2.com/discussions/what-is-windows-8-1-and-its-features) — 1 comment
  > **Top comment:** "Best windows i using all time for working
"

### FusionAuth

- Title: [Is FusionAuth free?](https://www.g2.com/discussions/is-fusionauth-free) — 1 comment
  > **Top comment:** "Yes, FusionAuth has a free Community edition that allows an unlimited number of monthly active users, and includes auth standards like Oauth, SAML, OIDC and..."

### Auth0

- Title: [Is auth0 expensive?](https://www.g2.com/discussions/is-auth0-expensive) — 1 comment
  > **Top comment:** "Nope, it is dead cheap compared to the competition, especially when used in SMEs or non-profit with few users - it could be "for free", actually. If used in..."
- Title: [What is auth0 used for?](https://www.g2.com/discussions/what-is-auth0-used-for) — 1 comment
  > **Top comment:** "Identity and access management"
- Title: [How do you port email templates to a third-party vendor?](https://www.g2.com/discussions/24315-how-do-you-port-email-templates-to-a-third-party-vendor) — 1 comment, 1 upvote
  > **Top comment:** "Hey there Tom!

It's Konrad - Auth0 Community Engineer. I think this question is more toward Emarsys than us. Let me understand that more thoroughly, as..."
- Title: [Getting MFA with India KYC](https://www.g2.com/discussions/getting-mfa-with-india-kyc) — 1 comment, 1 upvote
  > **Top comment:** "You can set up custom MFA factors with with guide. https://auth0.com/docs/multifactor-authentication/custom"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/ubuntu-vs-windows-8-vs-fusionauth-vs-auth0)