# Alternatives to Sentry

Sentry is an application monitoring platform for error tracking, performance tracing, and session replay across many languages and frameworks; open source with a hosted cloud.

Sentry ranks #1 of 7 in Error monitoring, with an Alt Score of 96. It is licensed under FSL-1.1-Apache-2.0, freemium from $26/mo (Team plan, annual billing) and available on the web. 13 of 13 checklist rows are verified against a public source.

Source: https://altcatalog.com/alternatives/sentry/
Category: Error monitoring

## Where Sentry stands out

- **Session replay** — 2 of 7 apps with a verified answer have this
- **Self-hostable** — 3 of 7 apps with a verified answer have this

## Overview

- **Who it's for**: Sentry is built for developers and engineering teams who need to catch, group, and diagnose application errors and performance problems in production across web, mobile, backend, and game codebases.
- **What you get**: A hosted (or self-hosted) dashboard that ingests SDK events across 20+ platforms and 60+ frameworks, automatically groups errors into deduplicated issues via fingerprinting, resolves minified stack traces with uploaded source maps, tracks releases and crash-free rates, and adds session replay, distributed tracing/APM (Trace Explorer), and an AI debugging agent (Seer) on top, with alerting into Slack/PagerDuty and issue sync with GitHub/Jira.
- **How it works**: You install a Sentry SDK for your language/framework, which captures unhandled exceptions and manually reported events (with breadcrumbs and user context) and sends them to a Sentry project; the backend fingerprints and groups events into issues, links them to releases and commits, and surfaces them in the dashboard where teams triage, get alerted, and resolve issues via commits, PRs, or the UI.

## Profile

- **License**: FSL-1.1-Apache-2.0 (verified 2026-07-17)
- **Pricing model**: Freemium (verified 2026-07-17)
- **Starts at**: $26/mo (Team plan, annual billing) (verified 2026-07-17)
- **Platforms**: Web
- **Status**: active (verified 2026-07-17)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [BugSnag](https://altcatalog.com/alternatives/bugsnag.md) | 86 | Proprietary | ? |
| 2 | [GlitchTip](https://altcatalog.com/alternatives/glitchtip.md) | 83 | MIT License | Web |
| 3 | [Honeybadger](https://altcatalog.com/alternatives/honeybadger.md) | 79 | Proprietary | Web |
| 4 | [Rollbar](https://altcatalog.com/alternatives/rollbar.md) | 79 | Proprietary — platform; SDKs are open source (MIT) | Web |
| 5 | [Airbrake](https://altcatalog.com/alternatives/airbrake.md) | 76 | Proprietary | Web |
| 6 | [Raygun](https://altcatalog.com/alternatives/raygun.md) | 66 | Proprietary | Web |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Feature comparison

Legend: Yes / No / Partial / ? (not verified).

| Error monitoring checklist | Sentry | BugSnag | GlitchTip | Honeybadger | Rollbar | Airbrake |
|---|---|---|---|---|---|---|
| Pricing model | Freemium | Freemium | OSS + paid hosting | Freemium | Freemium | Usage-based |
| Starts at | $26/mo (Team plan, annual billing) | Free | $15/month | $26/month | $48/mo (Essentials plan example; usage-based pricing) | $19/month |
| License | FSL-1.1-Apache-2.0 | Proprietary | MIT License | Proprietary | Proprietary — platform; SDKs are open source (MIT) | Proprietary |
| Platforms | Web | ? | Web | Web | Web | Web |
| Open source | Partial | No | Yes | No | No | No |
| Self-hostable | Yes | Yes | Yes | Partial | No | No |
| Error grouping / deduplication | Yes | Yes | Yes | Yes | Yes | Yes |
| Source maps / stack traces | Yes | Yes | Yes | Yes | Yes | Yes |
| Release tracking | Yes | Yes | Yes | Yes | Yes | Yes |
| Session replay | Yes | No | No | No | Yes | No |
| Performance / APM | Yes | Yes | Yes | Partial | No | Yes |
| Alerting integrations (Slack/PagerDuty) | Yes | Yes | Partial | Yes | Yes | Partial |
| Issue-tracker integration (Jira/GitHub) | Yes | Yes | No | Yes | Yes | Yes |
| SDK language coverage | Yes | Yes | Yes | Yes | Yes | Yes |
| User / breadcrumb context | Yes | Yes | Yes | Yes | Yes | Yes |
| Data retention (free) | Yes | Yes | Yes | Yes | Yes | Yes |
| Free tier event limit | Yes | Yes | Yes | Yes | Yes | Yes |

## Sources

Sources for Sentry. Each alternative is sourced on its own page.

- **License**: FSL-1.1-Apache-2.0 — <https://raw.githubusercontent.com/getsentry/sentry/master/LICENSE.md> (verified 2026-07-17)
  - Quote: “# Functional Source License, Version 1.1, Apache 2.0 Future License ## Abbreviation FSL-1.1-Apache-2.0”
- **Pricing model**: Freemium — <https://sentry.io/pricing> (verified 2026-07-17)
  - Quote: “developer For solo devs working on small projects Free $0”
- **Starts at**: $26/mo (Team plan, annual billing) — <https://sentry.io/pricing> (verified 2026-07-17)
  - Quote: “team Everything to monitor your application as it scales $26/mo”
- **Platforms**: Web — <https://sentry.io/pricing> (verified 2026-07-17)
  - Note: Sentry itself is a hosted (SaaS) and self-hostable web dashboard; per category convention platforms = ["Web"] regardless of the 20+ SDK languages/frameworks it instruments.
  - Quote: “Pricing plans for dev teams of all sizes”
- **Status**: active — <https://api.github.com/repos/getsentry/sentry> (verified 2026-07-17)
  - Note: pushed_at": "2026-07-17T08:12:38Z", "archived": false" — getsentry/sentry (44k+ GitHub stars) had commits pushed the same day this research was performed.
- **Open source**: Partial — <https://raw.githubusercontent.com/getsentry/sentry/master/LICENSE.md> (verified 2026-07-17)
  - Note: Source code is publicly available ("source-available") but Sentry's LICENSE.md is the Functional Source License (FSL-1.1-Apache-2.0), not an OSI-approved open-source license at release; it forbids Com
  - Quote: “Functional Source License, Version 1.1, Apache 2.0 Future License ... Abbreviation FSL-1.1-Apache-2.0”
- **Self-hostable**: Yes — <https://develop.sentry.dev/self-hosted> (verified 2026-07-17)
  - Note: Self-hosted Sentry runs via Docker/Docker Compose with a bash install/upgrade script; docs state to "consider self-hosted as the Business plan without any software limitations and no paid tier."
  - Quote: “In addition to making its source code available publicly, Sentry offers and maintains a minimal setup that works out-of-the-box for simple use cases.”
- **Error grouping / deduplication**: Yes — <https://docs.sentry.io/concepts/data-management/event-grouping/> (verified 2026-07-17)
  - Quote: “A fingerprint is a way to uniquely identify an event, and all events have one. Events with the same fingerprint are grouped together into an issue.”
- **Source maps / stack traces**: Yes — <https://docs.sentry.io/platforms/javascript/sourcemaps/> (verified 2026-07-17)
  - Quote: “To enable readable stack traces in your Sentry errors, you need to upload your source maps to Sentry.”
- **Release tracking**: Yes — <https://docs.sentry.io/product/releases/> (verified 2026-07-17)
  - Quote: “A release is a version of your code deployed to an environment. When you notify Sentry about a release, you can easily identify new issues and regressions, determine whether an issue was resolved, and”
- **Session replay**: Yes — <https://docs.sentry.io/product/session-replay/> (verified 2026-07-17)
  - Quote: “Session Replay gives you video-like reproductions of real user sessions so you can see exactly what a user did before, during, and after a bug or performance issue.”
- **Performance / APM**: Yes — <https://docs.sentry.io/product/trace-explorer/> (verified 2026-07-17)
  - Quote: “The Trace Explorer in Sentry is designed to make performance investigation easier and more intuitive. You can now explore span samples, visualize span attributes, and aggregate your data with flexible”
- **Alerting integrations (Slack/PagerDuty)**: Yes — <https://docs.sentry.io/integrations/notification-incidents/slack/> (verified 2026-07-17)
  - Quote: “After installing the Slack integration, you'll have the option to select Slack as an action for your alerts.”
- **Issue-tracker integration (Jira/GitHub)**: Yes — <https://docs.sentry.io/integrations/source-code-mgmt/github/> (verified 2026-07-17)
  - Quote: “The GitHub integration connects your repositories to Sentry to bring commit tracking, suspect commits, stack trace linking, issue management, and PR comments, into the contexts that Sentry uses to hel”
- **SDK language coverage**: Yes — <https://docs.sentry.io/llms.txt> (verified 2026-07-17)
  - Quote: “It provides error tracking, performance monitoring (tracing), session replay, profiling, logging, cron monitoring, application metrics, and more across 20+ platforms and 60+ frameworks.”
- **User / breadcrumb context**: Yes — <https://docs.sentry.io/platforms/javascript/enriching-events/breadcrumbs/> (verified 2026-07-17)
  - Quote: “Sentry uses breadcrumbs to create a trail of events that happened prior to an issue. These events are very similar to traditional logs, but can record more rich structured data.”
- **Data retention (free)**: Yes — <https://sentry.io/pricing> (verified 2026-07-17)
  - Note: The 30-day figure is the Developer (free) plan column of the pricing comparison table; Team/Business go up to 90-day lookback.
  - Quote: “Data retention 30-day lookback Up to 90-day lookback”
- **Free tier event limit**: Yes — <https://sentry.io/pricing> (verified 2026-07-17)
  - Note: 5k errors/month is the Developer (free) plan column; Team/Business include 50k errors/month, with overage billed pay-as-you-go.
  - Quote: “Error Monitoring 5k errors 50k errors 50k errors Custom”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/