Software Alternatives, Accelerators & Startups

Ably VS Rollbar

Compare Ably VS Rollbar and see what are their differences

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Ably logo Ably

The realtime platform that just works. We power more WebSocket connections than any other pub/sub platform, serving over 2 billion devices monthly.

Rollbar logo Rollbar

Rollbar collects errors that happen in your application, notifies you, and analyzes them so you can debug and fix them. Ruby, Python, PHP, Node.js, JavaScript, and Flash libraries available.
  • Ably Ably homepage
    Ably homepage //
    2024-08-05

We help teams deliver resilient AI UX and high-performance live experiences that stay fast and in sync worldwide. We provide the global realtime layer for AI agents, chat, notifications, live dashboards, and collaboration - engineered to handle peak demand without self-managed infrastructure.

Teams like HubSpot and Intercom use Ably to avoid the cost and complexity of building and operating realtime systems, while still getting predictable performance at serious scale, handling 2T+ API operations per month. Ably’s Pub/Sub, Chat, and AI Transport products are unified by design, with developer-friendly APIs and SDKs that integrate across your stack.

  • Rollbar Landing page
    Landing page //
    2023-10-18

Ably

Website
ably.com
$ Details
freemium
Release Date
2016 January
Startup details
Country
United Kingdom
Founder(s)
Matthew O'Riordan, Dr. Paddy Byers
Employees
50 - 99

Ably features and specs

  • Scalability
    Ably is designed to handle a massive number of concurrent connections and messages, making it scalable for both small and large applications.
  • Real-time Messaging
    Ably provides robust real-time messaging capabilities with low latency, supporting use-cases like live chat, gaming, and real-time data streaming.
  • Global Presence
    Ably has a globally distributed network, ensuring low latency and high availability for users around the world.
  • Advanced Features
    It offers advanced features such as message history, presence, and push notifications, which can enhance the functionality of real-time applications.
  • Security
    Ably includes built-in security features such as TLS encryption, token-based authentication, and private channels to ensure secure communication.
  • Extensive Documentation
    The service provides extensive and well-organized documentation, making it easier for developers to integrate and utilize its features.
  • SDKs and Libraries
    Ably offers a wide range of SDKs and libraries for different programming languages and platforms, easing the development process.
  • Reliable Delivery
    It ensures reliable message delivery with features like message queuing and message de-duplication.

Possible disadvantages of Ably

  • Complexity
    Due to its wide range of advanced features, the initial learning curve can be steep for new users.
  • Cost
    For large-scale applications or extensive use of advanced features, the costs can add up, making it potentially expensive.
  • Vendor Lock-in
    Relying heavily on Ably’s platform-specific features may result in vendor lock-in, making it challenging to switch to other services in the future.
  • Dependence on Internet Connection
    As a cloud-based service, Ably’s performance is highly dependent on the quality and reliability of the internet connection.
  • Third-party Integration
    While Ably offers various integration options, integrating certain third-party services may require additional custom development or may not be as seamless.

Rollbar features and specs

  • Real-time Error Tracking
    Rollbar provides real-time error monitoring and alerts, allowing developers to quickly identify and address issues in production environments.
  • Comprehensive Error Reports
    It offers detailed error reports that include stack traces, browser data, device data, and more, which help in diagnosing and fixing errors faster.
  • Supports Multiple Languages and Frameworks
    Rollbar supports a wide range of programming languages and frameworks, making it a versatile tool for various tech stacks.
  • Integrations with Popular Tools
    Rollbar integrates with popular development and workflow tools like Slack, Jira, GitHub, and more, enhancing team collaboration and productivity.
  • Customizable Notifications
    Users can customize notifications based on error severity, frequency, and other parameters to reduce noise and focus on critical issues.
  • AI-assisted Triage
    The platform uses AI to group and prioritize errors, helping developers focus on the most impactful issues first.
  • User Context and Telemetry
    Gives insight into user actions leading up to an error, which can be crucial for reproducing and fixing issues.
  • Deployment Tracking
    Rollbar allows you to track when errors are introduced by specific deployments, making it easier to pinpoint the root cause.
  • Scalable
    Suitable for companies of all sizes, from startups to large enterprises, providing scalable solutions that grow with your business.

Possible disadvantages of Rollbar

  • Pricing
    Rollbar can be expensive for small teams or startups, especially as the volume of errors and the need for advanced features grow.
  • Learning Curve
    While feature-rich, Rollbar may have a steep learning curve for new users who are not familiar with error tracking tools.
  • Occasional False Positives
    Some users report occasional false positives, which can divert attention from actual issues.
  • Custom Plan Limitations
    The need for a custom plan to access certain advanced features can be a limitation for smaller teams who may not have the budget.
  • Performance Overhead
    Introducing Rollbar into your application can add some performance overhead, although typically minimal. It still needs to be managed.
  • Data Privacy Concerns
    Storing sensitive error data in a third-party service can raise privacy and compliance concerns, especially for industries with strict regulations.

Analysis of Ably

Overall verdict

  • Ably is a reliable and efficient real-time messaging platform, well-suited for applications requiring high performance and scalability. It is generally well-regarded within the developer community for its ease of use and robust feature set.

Why this product is good

  • Features
    Ably provides a comprehensive suite of features such as pub/sub messaging, presence, and history.
  • Security
    It implements robust security practices including TLS encryption, token-based authentication, and private channels.
  • Integration
    Supports numerous protocols and provides SDKs for various programming languages, making it easy to integrate with different systems.
  • Reliability
    Ably offers high availability and low latency, ensuring messages are delivered in real-time.
  • Scalability
    The platform can handle millions of active connections and is designed for horizontal scaling.

Recommended for

  • developers building real-time applications like chat apps, dashboards, or multiplayer games
  • businesses in need of a scalable solution for live updates and notifications
  • teams looking for a platform with strong security and compliance credentials
  • organizations requiring integration with existing development workflows and tools

Analysis of Rollbar

Overall verdict

  • Yes, Rollbar is generally considered a good tool for error monitoring and management. Its comprehensive features and real-time insights make it a valuable addition for development teams aiming to improve their application's reliability and performance.

Why this product is good

  • Rollbar is known for its robust error tracking and monitoring capabilities. It provides real-time feedback on application errors, helping developers identify, diagnose, and fix issues quickly. Rollbar supports a wide range of programming languages and integrates well with various development and collaboration tools. Its features include automated error grouping, detailed error reports, and the ability to track the entire lifecycle of errors from detection to resolution.

Recommended for

  • Development teams that require real-time error tracking
  • Organizations looking to improve application reliability
  • Projects of various sizes, from startups to large enterprises
  • Teams that use continuous integration/continuous deployment (CI/CD) practices
  • Developers who need seamless integration with programming languages and tools

Ably videos

How to build a collaborative environment around your product

More videos:

  • Demo - How to build an avatar stack with Ably Spaces
  • Demo - Ably 101: Serverless WebSockets at scale

Rollbar videos

Miata Hard Dog Ace Rollbar Review

Category Popularity

0-100% (relative to Ably and Rollbar)
Developer Tools
100 100%
0% 0
Error Tracking
0 0%
100% 100
Realtime Backend / API
100 100%
0% 0
Exception Monitoring
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Ably and Rollbar

Ably Reviews

We have no reviews of Ably yet.
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Rollbar Reviews

6 Bugsnag Alternatives to Consider in 2021
Apart from detecting, diagnosing, and helping to fix errors in real-time, Rollbar also provides high-quality insights/analytics into the application’s error ecosystem. It offers a straightforward interface for managing and viewing the issues, making it easy to accumulate insights from your code and allowing you to see how users find their way around in your application....
Source: scoutapm.com

Social recommendations and mentions

Ably might be a bit more popular than Rollbar. We know about 26 links to it since March 2021 and only 25 links to Rollbar. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Ably mentions (26)

  • AWS us-east-1 outage: How Ably’s multi-region architecture held up
    During this week’s AWS us-east-1 outage, Ably maintained full service continuity with no customer impact. This was our multi-region architecture working exactly as designed; error rates were negligibly low and unchanged throughout. Any additional round trip latency was limited to 12ms, which is below the typical variance in any client-to-endpoint connection, and well below our 40–50ms global median; this is... - Source: dev.to / 10 months ago
  • Real-Time Sync Alternatives: Vaultrice vs. localStorage, DIY, Firebase, Pusher
    Services like Pusher and Ably are experts in real-time messaging. They provide robust APIs for pub/sub channels, allowing you to broadcast events to clients reliably. - Source: dev.to / about 1 year ago
  • CometChat Alternatives – Comparing the Top 10 Competitors
    Ably is a real-time infrastructure platform that focuses on delivering low-latency, reliable messaging across global distributed systems. It's designed for developers building event-driven applications, including chat, but also supports broader use cases like live dashboards, GPS tracking, and collaborative tools. - Source: dev.to / about 1 year ago
  • Real-Time Authorization in a Chat Application with Permit.io and WebSockets
    For our web socket-based application, we’ll be using Next.js and Ably, a service that allows us to easily integrate and manage real-time capabilities in our apps powered by web socket. - Source: dev.to / over 1 year ago
  • Curiosity: Using Ably.io Realtime Messaging as a Lightweight Database
    Ably offers various solutions for developers, with their most popular being realtime messaging based on the pub/sub model. When you publish a message to a channel, all devices connected to that channel receive it instantly. - Source: dev.to / over 1 year ago
View more

Rollbar mentions (25)

  • 7 Game-Changing Free Error Tracking Tools That Will Save Your Sanity in 2026
    Rollbar takes a different approach, focusing heavily on real-time error detection and intelligent grouping. Their free tier offers 5,000 occurrences per month, which is competitive with other major players, but what sets them apart is their exceptional alerting system and error grouping algorithms. - Source: dev.to / 6 months ago
  • 8 Simple Tips For Testing Payment Gateway Integrations
    Error monitoring is configured (Sentry, Rollbar, or similar). - Source: dev.to / 9 months ago
  • GCP Outage
    Shameless plug for https://rollbar.com Good luck out there! - Source: Hacker News / about 1 year ago
  • 12 Best Instabug Alternatives For Debugging In 2025
    Rollbar is a helpful tool for tracking user errors and debugging. It helps developers monitor, detect, and fix errors across different platforms, including web, mobile, and backend systems. It offers detailed error reports, tracks problems as they happen, and works smoothly with popular tools like Jira, GitHub, and Slack to make workflows easier. Rollbar is built to save time on debugging by grouping similar... - Source: dev.to / over 1 year ago
  • Sentry Alternatives for Better Error Tracking
    Rollbar is a highly effective real-time error tracking and debugging tool, crafted specifically for software developers. It aims to streamline the process of identifying and resolving errors across various programming languages and platforms, enhancing application quality and developer efficiency. For teams exploring sentry alternatives, Rollbar offers a compelling solution with its robust feature set and seamless... - Source: dev.to / almost 2 years ago
View more

What are some alternatives?

When comparing Ably and Rollbar, you can also consider the following products

Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Sentry.io - From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.

Socket.io - Realtime application framework (Node.JS server)

Raygun - Raygun gives developers meaningful insights into problems affecting their applications. Discover issues - Understand the problem - Fix things faster.

PubNub - PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.