# Ably Realtime vs Knock Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Ably Realtime excels in providing a robust and reliable infrastructure for real-time use cases, with users praising its developer-friendly platform. One reviewer highlighted the ease of integrating Ably into existing applications, noting the quick setup for a chat client with real-time push functionality.
- **Users say** that Knock stands out for its intuitive scheduling capabilities, making it easy to manage notifications that need to be sent in the future. Reviewers appreciate the simplicity of having a single endpoint for scheduling, which streamlines their notification workflows and reduces complexity.
- **According to verified reviews** , Ably Realtime has received higher ratings for overall user satisfaction, particularly in areas like quality of support and ease of use. Users commend the platform for its responsive customer support, which has been crucial during development phases.
- **Reviewers mention** that Knock is particularly effective in centralizing product notifications across multiple applications, eliminating the cumbersome processes associated with managing custom notification logic. This feature has been invaluable for teams looking to enhance their notification delivery efficiency.
- **G2 reviewers highlight** that while both platforms offer free entry-level pricing, Knock has a larger volume of recent reviews, indicating a more active user base and potentially more up-to-date feedback on its features and performance.
- **Users report** that Ably Realtime's ability to handle complex push notification scenarios, such as delivering messages across both iOS and Android platforms, is a significant advantage. This flexibility is complemented by features like the History API, which enhances the overall user experience.



| | Ably Realtime | Knock | 
|---|---|---|
| **Star Rating** | 4.8 out of 5 | 4.6 out of 5 | 
| **Total Reviews** | 67 | 146 | 
| **Largest Market Segment** | Small-Business (44.8% of reviews) | Small-Business (76.3% of reviews) | 
| **Entry Level Price** | Free Per Month | Free | 

---
## Top Pros & Cons

### Ably Realtime

Pros:
- Customer Support (11 reviews)
- Ease of Use (11 reviews)

Cons:
- Expensive (4 reviews)
- Data Management Issues (2 reviews)

### Knock

Pros:
- Ease of Use (39 reviews)
- Notifications (34 reviews)

Cons:
- Missing Features (19 reviews)
- Insufficient Features (8 reviews)

---
## Ratings Comparison
| Rating | Ably Realtime | Knock | 
|---|---|---|
  | **Meets Requirements** | 9.3 (60 reviews) | 9.0 (130 reviews) | 
  | **Ease of Use** | 9.0 (60 reviews) | 8.7 (135 reviews) | 
  | **Ease of Setup** | 8.9 (39 reviews) | 8.7 (98 reviews) | 
  | **Ease of Admin** | 8.5 (28 reviews) | 9.0 (59 reviews) | 
  | **Quality of Support** | 9.6 (59 reviews) | 9.7 (108 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.4 (29 reviews) | 9.5 (55 reviews) | 
  | **Product Direction (% positive)** | 9.6 (56 reviews) | 9.6 (134 reviews) | 

---
## Pricing

### Ably Realtime

#### Entry-Level Pricing

Plan: Free

Price: Free Per Month

Description: Create your first PoC hassle free. Simply upgrade when you need to ramp up usage.

Key Features:
- 200 concurrent channels
- 200 concurrent connections
- 500 messages / second

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

#### Free Trial

Yes

### Knock

#### Entry-Level Pricing

Plan: Developer

Price: Free

Description: For testing and evaluation, or small-scale deployments.


Key Features:
- Includes 10k notifications a month
- Unlimited channels
- Unlimited notification workflows

[Browse all 3 editions](https://www.g2.com/products/knock-knock/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Transactional Email

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | N/A | N/A |
| **Knock** | 8.3/10 | 80 |

#### Administration

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Template Creation** | Not enough data | 8.2 (79 reviews) | 
| **Preset Template Availability** | Not enough data | 7.0 (67 reviews) | 
| **Custom Unsubscribe** | Not enough data | 7.5 (53 reviews) | 
| **Email Segmentation** | Not enough data | 8.2 (54 reviews) | 
| **Detailed Server Logs** | Not enough data | 8.4 (74 reviews) | 
| **Notifications** | Not enough data | 9.2 (76 reviews) | 

#### Integrations

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Webhooks** | Not enough data | 8.8 (64 reviews) | 
| **Event Tracking API** | Not enough data | 8.3 (59 reviews) | 
| **Mail Send API** | Not enough data | 9.0 (68 reviews) | 
| **Spam Filter Testing** | Not enough data | 7.5 (43 reviews) | 

#### Platform

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Custom Tracking Domain** | Not enough data | 8.4 (44 reviews) | 
| **Multiple Domains** | Not enough data | 8.1 (43 reviews) | 
| **Dedicated IP** | Not enough data | 7.6 (41 reviews) | 
| **Documentation** | Not enough data | 8.8 (74 reviews) | 
| **Sender Reputation Management** | Not enough data | 7.8 (41 reviews) | 
| **Tracking & Reporting** | Not enough data | 8.4 (60 reviews) | 
| **Enterprise Scalability** | Not enough data | 8.6 (54 reviews) | 
| **Performance and Reliability** | Not enough data | 9.4 (72 reviews) | 

### Event Stream Processing

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | 8.7/10 | 20 |
| **Knock** | N/A | N/A |

#### Data

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Data Processing** | 9.0 (16 reviews) | Not enough data | 
| **Data Sources** | 8.1 (15 reviews) | Not enough data | 
| **Integration** | 9.3 (16 reviews) | Not enough data | 
| **Real-Time Processing** | 9.2 (19 reviews) | Not enough data | 

#### Analytics

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Reporting & Analytics** | 8.1 (18 reviews) | Not enough data | 

### Push Notification

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | 8.3/10 | 15 |
| **Knock** | 7.9/10 | 62 |

#### Campaigns

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Customize** | 8.8 (13 reviews) | 8.7 (58 reviews) | 
| **Scheduling** | 8.5 (10 reviews) | 9.1 (53 reviews) | 
| **Retarget** | 8.2 (11 reviews) | 7.7 (35 reviews) | 
| **Segmentation** | 8.2 (11 reviews) | 7.4 (37 reviews) | 
| **Triggered Notifications** | 8.9 (11 reviews) | 9.0 (59 reviews) | 

#### Analytics

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Campaign Performance** | 7.9 (7 reviews) | 7.1 (33 reviews) | 
| **Audience Insights** | 7.9 (7 reviews) | 6.9 (37 reviews) | 

#### Optimization

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **A/B Testing** | 8.3 (8 reviews) | 6.9 (32 reviews) | 
| **Personalization** | 8.6 (7 reviews) | 8.7 (53 reviews) | 
| **Rich Notifications** | 8.1 (8 reviews) | 8.8 (46 reviews) | 
| **Integrations** | 8.3 (8 reviews) | 8.7 (52 reviews) | 

#### Agentic AI - Push Notification

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.2 (6 reviews) | 
| **Adaptive Learning** | Not enough data | 6.9 (6 reviews) | 
| **Proactive Assistance** | Not enough data | 7.5 (6 reviews) | 

### Message Queue (MQ)

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | 9.1/10 | 13 |
| **Knock** | N/A | N/A |

#### Functionality

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Asynchronous Messaging** | 9.7 (13 reviews) | Not enough data | 
| **Language Support** | 8.8 (10 reviews) | Not enough data | 
| **Cloud-based Messaging** | 9.4 (12 reviews) | Not enough data | 
| **Latency** | 9.6 (13 reviews) | Not enough data | 

#### Integration

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Application Integration** | 9.4 (13 reviews) | Not enough data | 
| **Data Integration** | 9.4 (11 reviews) | Not enough data | 
| **Plugins and integrations** | 8.5 (11 reviews) | Not enough data | 

#### Management

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Policies and Controls** | 8.7 (9 reviews) | Not enough data | 
| **Security Monitoring** | 8.5 (10 reviews) | Not enough data | 
| **Activity Monitoring** | 8.5 (11 reviews) | Not enough data | 

#### Agentic AI - Message Queue (MQ)

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 

### Communication Platform as a Service (CPaaS)

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | 8.9/10 | 29 |
| **Knock** | N/A | N/A |

#### Functionality

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Ease Of Integration** | 8.8 (29 reviews) | Not enough data | 
| **API Call Speed** | 9.6 (28 reviews) | Not enough data | 
| **Communication Varieties** | 8.7 (21 reviews) | Not enough data | 

#### Support

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Documentation** | 8.7 (29 reviews) | Not enough data | 
| **Community Support** | 7.9 (22 reviews) | Not enough data | 
| **Professional Support** | 9.5 (29 reviews) | Not enough data | 

### Proactive Notification

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | N/A | N/A |
| **Knock** | 8.9/10 | 48 |

#### Messaging Channels

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **SMS Messaging** | Not enough data | 8.5 (28 reviews) | 
| **Email** | Not enough data | 9.3 (45 reviews) | 
| **Voice Messaging** | Not enough data | Feature Not Available | 
| **Two way messaging** | Not enough data | Feature Not Available | 

#### Administration

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Scheduling** | Not enough data | 8.8 (36 reviews) | 
| **Triggered Notifications** | Not enough data | 9.5 (43 reviews) | 
| **Segmentation** | Not enough data | 7.8 (21 reviews) | 
| **Integrations** | Not enough data | 9.3 (36 reviews) | 

### Notification Infrastructure

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | N/A | N/A |
| **Knock** | 8.4/10 | 82 |

#### Consolidation - Notification Infrastructure

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Automation** | Not enough data | 8.7 (76 reviews) | 
| **API Integration** | Not enough data | 9.2 (78 reviews) | 
| **Template** | Not enough data | 8.5 (76 reviews) | 

#### Customization - Notification Infrastructure

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **User Preference** | Not enough data | 8.8 (78 reviews) | 
| **Analytics** | Not enough data | 7.7 (76 reviews) | 
| **Drag and Drop** | Not enough data | 7.7 (75 reviews) | 

### Big Data

| Product | Score | Reviews |
|---|---|---|
| **Ably Realtime** | N/A | N/A |
| **Knock** | N/A | N/A |

#### Building Reports

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Data Transformation** | Not enough data | Not enough data | 
| **Data Modeling** | Not enough data | Not enough data | 
| **WYSIWYG Report Design** | Not enough data | Not enough data | 
| **Integration APIs** | Not enough data | Not enough data | 

#### Platform

| Feature | Ably Realtime | Knock | 
|---|---|---|
| **Mobile User Support** | Not enough data | Not enough data | 
| **Customization ** | Not enough data | Not enough data | 
| **User, Role, and Access Management** | Not enough data | Not enough data | 
| **Internationalization** | Not enough data | Not enough data | 
| **Sandbox / Test Environments** | Not enough data | Not enough data | 
| **Performance and Reliability** | Not enough data | Not enough data | 
| **Breadth of Partner Applications** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [Push Notification Software](https://www.g2.com/categories/push-notification), [Communication Platform as a Service (cPaaS) Platforms](https://www.g2.com/categories/communication-platform-as-a-service-cpaas)

**Unique to Ably Realtime (3):** [Message Queue (MQ) Software](https://www.g2.com/categories/message-queue-mq), [Event Stream Processing Software](https://www.g2.com/categories/event-stream-processing), [Stream Analytics Software](https://www.g2.com/categories/stream-analytics)

**Unique to Knock (3):** [Notification Infrastructure Software](https://www.g2.com/categories/notification-infrastructure), [Transactional Email Software](https://www.g2.com/categories/transactional-email), [Proactive Notification Software](https://www.g2.com/categories/proactive-notification)


---
## Reviewer Demographics

### By Company Size

| Segment | Ably Realtime | Knock | 
|---|---|---|
| **Small-Business** | 44.8% | 76.3% | 
| **Mid-Market** | 28.4% | 22.3% | 
| **Enterprise** | 26.9% | 1.4% | 

### By Industry

#### Ably Realtime

- **Information Technology and Services:** 22.4%
- **Computer Software:** 7.5%
- **Entertainment:** 7.5%
- **Financial Services:** 6.0%
- **Sports:** 4.5%
- **Computer Games:** 4.5%
- **Education Management:** 4.5%
- **Gambling & Casinos:** 4.5%
- **Higher Education:** 4.5%
- **Events Services:** 3.0%
- **Other:** 31.3%

#### Knock

- **Computer Software:** 33.3%
- **Information Technology and Services:** 8.9%
- **Financial Services:** 7.4%
- **Accounting:** 3.7%
- **Marketing and Advertising:** 3.7%
- **Human Resources:** 3.0%
- **Internet:** 3.0%
- **Logistics and Supply Chain:** 3.0%
- **E-Learning:** 2.2%
- **Leisure, Travel & Tourism:** 2.2%
- **Other:** 29.6%

---
## Alternatives

### Alternatives to Ably Realtime

- [OneSignal](https://www.g2.com/products/onesignal/reviews) — 4.7/5 stars (1198 reviews)
- [Twilio](https://www.g2.com/products/twilio/reviews) — 4.1/5 stars (522 reviews)
- [MuleSoft Anypoint Platform](https://www.g2.com/products/mulesoft-anypoint-platform/reviews) — 4.5/5 stars (771 reviews)
- [Brevo Marketing Platform](https://www.g2.com/products/brevo-marketing-platform/reviews) — 4.5/5 stars (2572 reviews)
- [Dotdigital](https://www.g2.com/products/dotdigital/reviews) — 4.4/5 stars (1212 reviews)
- [Agentforce Marketing (formerly Salesforce Marketing Cloud)](https://www.g2.com/products/agentforce-marketing-formerly-salesforce-marketing-cloud/reviews) — 4.0/5 stars (4625 reviews)
- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1683 reviews)
- [Omnisend](https://www.g2.com/products/omnisend/reviews) — 4.6/5 stars (1189 reviews)
- [GetResponse](https://www.g2.com/products/getresponse/reviews) — 4.3/5 stars (1126 reviews)
- [Customer.io](https://www.g2.com/products/customer-io/reviews) — 4.4/5 stars (834 reviews)

### Alternatives to Knock

- [Courier](https://www.g2.com/products/courier/reviews) — 4.5/5 stars (59 reviews)
- [SuprSend](https://www.g2.com/products/suprsend/reviews) — 4.8/5 stars (127 reviews)
- [OneSignal](https://www.g2.com/products/onesignal/reviews) — 4.7/5 stars (1198 reviews)
- [MoEngage](https://www.g2.com/products/moengage/reviews) — 4.5/5 stars (524 reviews)
- [Customer.io](https://www.g2.com/products/customer-io/reviews) — 4.4/5 stars (834 reviews)
- [Braze](https://www.g2.com/products/braze/reviews) — 4.5/5 stars (1683 reviews)
- [CleverTap](https://www.g2.com/products/clevertap/reviews) — 4.6/5 stars (660 reviews)
- [Omnisend](https://www.g2.com/products/omnisend/reviews) — 4.6/5 stars (1189 reviews)
- [Iterable](https://www.g2.com/products/iterable/reviews) — 4.4/5 stars (826 reviews)
- [Agentforce Marketing (formerly Salesforce Marketing Cloud)](https://www.g2.com/products/agentforce-marketing-formerly-salesforce-marketing-cloud/reviews) — 4.0/5 stars (4625 reviews)

---
## Top Discussions

### Ably Realtime

- Title: [What does ably realtime do?](https://www.g2.com/discussions/what-does-ably-realtime-do) — 1 comment
  > **Top comment:** "Ably is the leader in serverless WebSockets for message delivery at the edge. Developers are mostly building their own WebSocket and last-mile event..."
- Title: [What is ably com?](https://www.g2.com/discussions/what-is-ably-com) — 1 comment, 1 upvote
  > **Top comment:** "Ably is a serverless WebSocket PaaS operating at the edge to power applications that depend on realtime data streaming. There’s no infrastructure to..."

### Knock

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/ably-realtime-vs-knock-knock)