# Apache CloudStack, Virtuozzo vs AWS Lambda Comparison

| | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Star Rating** | 4.4 out of 5 | 4.4 out of 5 | 4.6 out of 5 | 
| **Total Reviews** | 27 | 55 | 1,038 | 
| **Largest Market Segment** | Enterprise (40.0% of reviews) | Small-Business (64.7% of reviews) | Enterprise (41.9% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Apache CloudStack

**Not enough data**

### Virtuozzo

Pros:
- Affordable (1 reviews)
- Cost-Effective (1 reviews)

Cons:
- Resource Limitations (1 reviews)

### AWS Lambda

Pros:
- Ease of Use (47 reviews)
- Scalability (35 reviews)

Cons:
- Resource Limitations (36 reviews)
- Difficult Debugging (17 reviews)

---
## Ratings Comparison
| Rating | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
  | **Meets Requirements** | 8.1 (25 reviews) | 8.8 (44 reviews) | 9.0 (738 reviews) | 
  | **Ease of Use** | 8.4 (25 reviews) | 8.7 (45 reviews) | 8.7 (747 reviews) | 
  | **Ease of Setup** | 8.1 (21 reviews) | 8.2 (34 reviews) | 8.6 (399 reviews) | 
  | **Ease of Admin** | 8.1 (22 reviews) | 8.8 (35 reviews) | 8.5 (285 reviews) | 
  | **Quality of Support** | 7.2 (23 reviews) | 8.3 (42 reviews) | 8.6 (675 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.6 (17 reviews) | 8.8 (32 reviews) | 8.9 (277 reviews) | 
  | **Product Direction (% positive)** | 7.2 (25 reviews) | 7.2 (41 reviews) | 9.3 (684 reviews) | 

---
## Pricing

### Apache CloudStack

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Virtuozzo

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### AWS Lambda

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Cloud Management Platforms

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | N/A | N/A |
| **AWS Lambda** | N/A | N/A |

#### Functionality

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Cloud Consolidation** | Not enough data | Not enough data | Not enough data | 
| **Cloud Orchestration** | Not enough data | Not enough data | Not enough data | 
| **Cloud Optimization** | Not enough data | Not enough data | Not enough data | 

#### Management

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Cloud Cost Analytics** | Not enough data | Not enough data | Not enough data | 
| **Cloud Security** | Not enough data | Not enough data | Not enough data | 
| **Cloud Resource Management** | Not enough data | Not enough data | Not enough data | 
| **Cloud Backup and Recovery** | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Cloud Management Platforms

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Infrastructure as a Service (IaaS)

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | N/A | N/A |
| **AWS Lambda** | N/A | N/A |

#### Infrastructure Provision

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Public Cloud** | Not enough data | Not enough data | Not enough data | 
| **Private Cloud** | Not enough data | Not enough data | Not enough data | 
| **Hybrid Cloud** | Not enough data | Not enough data | Not enough data | 
| **Bare Metal** | Not enough data | Not enough data | Not enough data | 
| **High-Performance Computing (HPC)** | Not enough data | Not enough data | Not enough data | 
| **Virtual Machines (VMs)** | Not enough data | Not enough data | Not enough data | 
| **Edge Computing** | Not enough data | Not enough data | Not enough data | 
| **Virtual Networks** | Not enough data | Not enough data | Not enough data | 

#### Management

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Pay by Usage** | Not enough data | Not enough data | Not enough data | 
| **Usage Tracking** | Not enough data | Not enough data | Not enough data | 
| **Performance Tracking** | Not enough data | Not enough data | Not enough data | 

#### Functionality

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Resource Auto-Scaling** | Not enough data | Not enough data | Not enough data | 

### Server Virtualization

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | N/A | N/A |
| **AWS Lambda** | N/A | N/A |

#### Performance

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Scalability** | Not enough data | Not enough data | Not enough data | 
| **Portability** | Not enough data | Not enough data | Not enough data | 
| **Data Recovery** | Not enough data | Not enough data | Not enough data | 

#### Functionality

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **OS Integration** | Not enough data | Not enough data | Not enough data | 
| **Resource Saving** | Not enough data | Not enough data | Not enough data | 
| **Performance Management** | Not enough data | Not enough data | Not enough data | 
| **Security** | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Server Virtualization

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Container Engine

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | N/A | N/A |
| **AWS Lambda** | N/A | N/A |

#### Application Support

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Deployment** | Not enough data | Not enough data | Not enough data | 
| **Interface support** | Not enough data | Not enough data | Not enough data | 
| **Processor support** | Not enough data | Not enough data | Not enough data | 
| **Application Support** | Not enough data | Not enough data | Not enough data | 

#### System Capability

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Self Healing High Availability** | Not enough data | Not enough data | Not enough data | 
| **Orchestration** | Not enough data | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Automatic Security Updates** | Not enough data | Not enough data | Not enough data | 
| **Security updates** | Not enough data | Not enough data | Not enough data | 

### VPS Hosting Platforms

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | N/A | N/A |
| **AWS Lambda** | N/A | N/A |

#### Agentic AI - Virtual Private Servers (VPS)

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

#### Hosting Management

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Storage Limits** | Not enough data | Not enough data | Not enough data | 
| **Bandwidth Allowance** | Not enough data | Not enough data | Not enough data | 
| **Email Hosting** | Not enough data | Not enough data | Not enough data | 
| **Control Panel Integration** | Not enough data | Not enough data | Not enough data | 
| **CMS Support** | Not enough data | Not enough data | Not enough data | 
| **Web Framework Support** | Not enough data | Not enough data | Not enough data | 
| **E-Commerce Integration** | Not enough data | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | Not enough data | 
| **Database Support** | Not enough data | Not enough data | Not enough data | 
| **Security Tools** | Not enough data | Not enough data | Not enough data | 

### Cloud Platform as a Service (PaaS)

| Product | Score | Reviews |
|---|---|---|
| **Apache CloudStack** | N/A | N/A |
| **Virtuozzo** | 8.1/10 | 8 |
| **AWS Lambda** | 8.5/10 | 586 |

#### Development

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Application Deployment** | Not enough data | 9.0 (7 reviews) | 9.0 (473 reviews) | 
| **Development Tools** | Not enough data | 8.1 (7 reviews) | 8.4 (461 reviews) | 
| **Development Environment** | Not enough data | 7.8 (6 reviews) | 8.3 (454 reviews) | 
| **Language Support** | Not enough data | 8.8 (7 reviews) | 8.5 (443 reviews) | 
| **Testing** | Not enough data | 7.8 (6 reviews) | 8.0 (440 reviews) | 

#### Database

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Database Management** | Not enough data | 8.6 (7 reviews) | 8.3 (364 reviews) | 
| **Analytics** | Not enough data | 7.8 (6 reviews) | 8.4 (374 reviews) | 
| **Auto Scaling** | Not enough data | 7.7 (8 reviews) | 9.1 (424 reviews) | 
| **Backup / Recovery** | Not enough data | 7.9 (7 reviews) | 8.4 (342 reviews) | 
| **Storage** | Not enough data | 8.1 (7 reviews) | 8.4 (359 reviews) | 

#### Infrastructure

| Feature | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Networking** | Not enough data | 8.1 (7 reviews) | 8.6 (376 reviews) | 
| **Virtual Machines** | Not enough data | 7.8 (6 reviews) | 8.4 (344 reviews) | 
| **Security** | Not enough data | 7.4 (7 reviews) | 8.8 (401 reviews) | 

---
## Categories

**Unique to Apache CloudStack (2):** [Cloud Management Platforms](https://www.g2.com/categories/cloud-management-platforms), [Infrastructure as a Service (IaaS) Software](https://www.g2.com/categories/infrastructure-as-a-service-iaas)

**Unique to Virtuozzo (5):** [Container Engine Software](https://www.g2.com/categories/container-engine), [Server Virtualization Software](https://www.g2.com/categories/server-virtualization), [VPS Hosting Platforms](https://www.g2.com/categories/vps-hosting-platforms), [Infrastructure as a Service (IaaS) Software](https://www.g2.com/categories/infrastructure-as-a-service-iaas), [Cloud Platform as a Service (PaaS) Software](https://www.g2.com/categories/cloud-platform-as-a-service-paas)

**Unique to AWS Lambda (1):** [Cloud Platform as a Service (PaaS) Software](https://www.g2.com/categories/cloud-platform-as-a-service-paas)


---
## Reviewer Demographics

### By Company Size

| Segment | Apache CloudStack | Virtuozzo | AWS Lambda | 
|---|---|---|---|
| **Small-Business** | 32.0% | 64.7% | 21.9% | 
| **Mid-Market** | 28.0% | 25.5% | 36.2% | 
| **Enterprise** | 40.0% | 9.8% | 41.9% | 

### By Industry

#### Apache CloudStack

- **Information Technology and Services:** 28.0%
- **Higher Education:** 16.0%
- **Computer Software:** 16.0%
- **Broadcast Media:** 8.0%
- **Telecommunications:** 4.0%
- **Research:** 4.0%
- **Internet:** 4.0%
- **Financial Services:** 4.0%
- **Education Management:** 4.0%
- **Computer Networking:** 4.0%
- **Other:** 8.0%

#### Virtuozzo

- **Information Technology and Services:** 33.3%
- **Computer & Network Security:** 13.7%
- **Computer Software:** 9.8%
- **Oil & Energy:** 5.9%
- **Animation:** 2.0%
- **Architecture & Planning:** 2.0%
- **Building Materials:** 2.0%
- **Computer Networking:** 2.0%
- **Consumer Services:** 2.0%
- **Defense & Space:** 2.0%
- **Other:** 25.5%

#### AWS Lambda

- **Computer Software:** 23.0%
- **Information Technology and Services:** 20.4%
- **Financial Services:** 8.3%
- **Internet:** 2.8%
- **Hospital & Health Care:** 2.7%
- **Retail:** 2.5%
- **Insurance:** 2.2%
- **Education Management:** 2.0%
- **Marketing and Advertising:** 2.0%
- **Telecommunications:** 1.9%
- **Other:** 32.3%

---
## Alternatives

### Alternatives to Apache CloudStack

- [OpenStack](https://www.g2.com/products/openstack/reviews) — 4.2/5 stars (53 reviews)
- [DigitalOcean](https://www.g2.com/products/digitalocean/reviews) — 4.6/5 stars (749 reviews)
- [Google Compute Engine](https://www.g2.com/products/google-compute-engine/reviews) — 4.5/5 stars (952 reviews)
- [VMware vSphere](https://www.g2.com/products/vmware-vsphere/reviews) — 4.5/5 stars (761 reviews)
- [Akamai Cloud Computing](https://www.g2.com/products/akamai-cloud-computing/reviews) — 4.6/5 stars (406 reviews)
- [OpenNebula](https://www.g2.com/products/opennebula/reviews) — 4.4/5 stars (10 reviews)
- [Amazon EC2](https://www.g2.com/products/amazon-ec2/reviews) — 4.6/5 stars (1195 reviews)
- [Azure Virtual Machines](https://www.g2.com/products/azure-virtual-machines/reviews) — 4.4/5 stars (393 reviews)
- [VMware Cloud Foundation](https://www.g2.com/products/vmware-cloud-foundation/reviews) — 4.4/5 stars (652 reviews)
- [Hostwinds](https://www.g2.com/products/hostwinds/reviews) — 4.9/5 stars (438 reviews)

### Alternatives to Virtuozzo

- [VMware vSphere](https://www.g2.com/products/vmware-vsphere/reviews) — 4.5/5 stars (761 reviews)
- [Red Hat OpenShift](https://www.g2.com/products/red-hat-red-hat-openshift/reviews) — 4.5/5 stars (304 reviews)
- [DigitalOcean](https://www.g2.com/products/digitalocean/reviews) — 4.6/5 stars (749 reviews)
- [Azure Virtual Machines](https://www.g2.com/products/azure-virtual-machines/reviews) — 4.4/5 stars (393 reviews)
- [Cloudways](https://www.g2.com/products/cloudways/reviews) — 4.7/5 stars (1126 reviews)
- [Google Compute Engine](https://www.g2.com/products/google-compute-engine/reviews) — 4.5/5 stars (952 reviews)
- [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews)
- [Amazon EC2](https://www.g2.com/products/amazon-ec2/reviews) — 4.6/5 stars (1195 reviews)
- [Hostwinds](https://www.g2.com/products/hostwinds/reviews) — 4.9/5 stars (438 reviews)
- [Ubuntu](https://www.g2.com/products/ubuntu/reviews) — 4.5/5 stars (2393 reviews)

### Alternatives to AWS Lambda

- [DigitalOcean](https://www.g2.com/products/digitalocean/reviews) — 4.6/5 stars (749 reviews)
- [Red Hat OpenShift](https://www.g2.com/products/red-hat-red-hat-openshift/reviews) — 4.5/5 stars (304 reviews)
- [Google App Engine](https://www.g2.com/products/google-app-engine/reviews) — 4.1/5 stars (216 reviews)
- [Salesforce Heroku](https://www.g2.com/products/salesforce-heroku/reviews) — 4.2/5 stars (148 reviews)
- [Azure App Service](https://www.g2.com/products/azure-app-service/reviews) — 4.5/5 stars (94 reviews)
- [PythonAnywhere](https://www.g2.com/products/pythonanywhere/reviews) — 4.4/5 stars (81 reviews)
- [Agentforce 360 Platform (formerly Salesforce Platform)](https://www.g2.com/products/agentforce-360-platform-formerly-salesforce-platform/reviews) — 4.5/5 stars (4004 reviews)
- [Cloud Foundry](https://www.g2.com/products/cloud-foundry/reviews) — 4.0/5 stars (19 reviews)
- [Azure Functions](https://www.g2.com/products/azure-functions/reviews) — 4.4/5 stars (213 reviews)
- [SAP Integration Suite](https://www.g2.com/products/sap-integration-suite/reviews) — 4.3/5 stars (339 reviews)

---
## Top Discussions

### Apache CloudStack

No discussions available for this product.

### Virtuozzo

- Title: [Is Virtuozzo open source?](https://www.g2.com/discussions/is-virtuozzo-open-source) — 1 comment
  > **Top comment:** "Virtuozzo offers open-source container solution - OpenVZ. But the main set of solutions (IaaS, PaaS, WordPress-aaS, etc) are proprietary."
- Title: [Who owns Virtuozzo?](https://www.g2.com/discussions/who-owns-virtuozzo) — 1 comment
  > **Top comment:** "Virtuozzo is a standalone software company founded in 1997."
- Title: [What is OVZ virtualization technology?](https://www.g2.com/discussions/what-is-ovz-virtualization-technology) — 1 comment
  > **Top comment:** "OVZ (Open Virtuozzo) is an operating-system-level virtualization technology for Linux. It allows a physical server to run multiple isolated operating system..."
- Title: [Is Virtuozzo a hypervisor?](https://www.g2.com/discussions/is-virtuozzo-a-hypervisor) — 1 comment
  > **Top comment:** "You may find information you need here https://www.virtuozzo.com/hybrid-server/hypervisor/"
- Title: [Is KVM better than OpenVZ?](https://www.g2.com/discussions/is-kvm-better-than-openvz) — 1 comment
  > **Top comment:** "Definitely not!! (But I may be biased)

The difference between KVM and OpenVZ stems from the fact the two solutions offer two distinct types of..."

### AWS Lambda

- Title: [What is AWS Lambda used for?](https://www.g2.com/discussions/what-is-aws-lambda-used-for) — 3 comments
  > **Top comment:** "It is used to deply applications. It provides serverless environment which means you only pay the cost for the cost or duration for which the application had..."
- Title: [Is AWS lambda a container?](https://www.g2.com/discussions/is-aws-lambda-a-container) — 3 comments
  > **Top comment:** "yes"
- Title: [What is AWS Lambda built on?](https://www.g2.com/discussions/what-is-aws-lambda-built-on) — 2 comments
  > **Top comment:** "Each lambda function is packaged in its own container running on Linux. You can write your lambda function using a variety of languages such as Python, Java,..."
- Title: [How does AWS Lambda work?](https://www.g2.com/discussions/how-does-aws-lambda-work) — 2 comments
  > **Top comment:** "Lambda is a Serverless service, Behind the scene, there are containers running, When you trigger a lambda a container spins up and your code is executed. The..."
- Title: [What is AWS Lambda good for?](https://www.g2.com/discussions/what-is-aws-lambda-good-for) — 2 comments
  > **Top comment:** "Using AWS Lambda, we can schedule jobs of required scripts on regular interval to run, which is directly indicates to automation"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/apache-cloudstack-vs-virtuozzo-vs-aws-lambda)