The Sentry alternative that shows which bugs are costing you users
Crashes, ANRs, app hangs, slow APIs and full stack traces on Android, iOS, Flutter and Web, plus Goal Friction Impact, which shows which of those issues stop users from finishing checkout, signup or any flow you define.
Appxiom or Sentry?
Appxiom covers crash, ANR, hang and API issues on Android, iOS, Flutter and Web, and adds the context that tells you what to fix first. Appxiom has no session replay or profiling, so keep Sentry if you rely on those.
Choose Appxiom if…
You want ANRs flagged while they happen on Android 11+, and memory leaks, slow and duplicate API calls, frozen frames and slow screens raised as issues. You need to know which bugs stop users from finishing checkout, signup or any flow you define (Professional). You want one Quality Score from 0 to 10 for every release (Professional). You prefer a flat price per app, by device tier, so an error spike doesn't change your bill.
Keep Sentry alongside Appxiom if…
You rely on session replay, profiling or tracing. You also monitor backend services with Sentry.
Appxiom vs Sentry
Every Sentry claim links to its official documentation, so you can check it yourself.
| Feature | Appxiom | Sentry |
|---|---|---|
| Pricing model | Per app Flat price per app, by device tier. Unlimited seats, no per-event billing. | Plan plus usage quotas Errors, spans and replays included per plan; more volume is reserved or pay-as-you-go. Source: Sentry pricing |
| Android, iOS, Flutter, Kotlin Multiplatform and Web | Yes Native Android and iOS SDKs, a Flutter plugin, a Kotlin Multiplatform SDK and a Web SDK, in one dashboard. | Yes SDKs for Android, Apple, Flutter, Kotlin Multiplatform and JavaScript. Source: Sentry platforms |
| Crash reporting and stack traces | Yes Symbolicated stack traces with device state and Activity Trail, ranked by impact on user journeys. | Yes Crash and error events grouped into issues with stack traces. Source: Sentry platforms |
| Android ANRs | Yes Detected live while the main thread is blocked, including Android 11+, and linked to the flow it stopped. | Yes Watchdog below Android 11. On Android 11+, read from ApplicationExitInfo on the next app launch. Source: Android ANR docs |
| iOS app hangs | Yes Detected with a stack trace in debug and release builds. | Yes On by default with a 2-second threshold; App Hangs V2 separates fully and partly blocking hangs. Source: App hangs docs, App Hangs V2 changelog |
| Failed API calls | Yes Status-code errors, network exceptions and timeouts, each an issue with the user's trail. | Yes Failed requests captured as errors (500–599 by default). Source: OkHttp integration |
| Slow and duplicate API calls | Yes Delayed and duplicate calls reported as issues. | Partial Request timing and N+1 API call patterns from tracing. Source: OkHttp integration, Performance issues |
| Frozen frames and slow screens | Yes Reported as issues with screen context on Android, iOS, Flutter and Web, plus screen load and cold/warm/hot start delays. | Partial Slow and frozen frames as Mobile Vitals metrics; Frame Drop issues need profiling enabled. Source: Mobile Vitals, Frame Drop |
| What the user did before the issue | Yes Activity Trail: screen lifecycle, taps and clicks, network calls, custom markers and free memory at each step. It logs events rather than recording the screen, so there is nothing to mask. | Yes Automatic breadcrumbs for navigation, taps, HTTP and system events. Source: Android breadcrumbs, OkHttp integration |
| Memory leaks | Yes Leaks in testing and production builds, plus memory spikes and abnormal usage. In production builds, leaks are detected at screen level (Activity, Fragment and ViewController). In Kotlin Multiplatform, leaks are tracked on the ViewModels and Compose Multiplatform screens you register with Ax.watchLeaks or AxWatchLeakOnDispose. | Not documented iOS watchdog terminations cover likely out-of-memory kills. Source: Watchdog terminations |
| Release health | Yes Issue Distribution Analytics across versions, plus one Quality Score (0–10) per release (Professional). | Yes Crash-free sessions and users, adoption and session status, shown as separate metrics. Source: Release health |
| Business impact of bugs | Yes Goal Friction Impact scores each user journey from 0 to 10 and lists the issues behind drop-off (Professional). | No Issues are prioritized by events, users affected and crash-free rates. No journey or goal metric. Source: Release health |
| Severity by user impact | Yes Every issue tagged fatal, major or minor by its effect on users. | Partial Issue priority and level set from event data. Source: Issue priority |
| MCP server for AI coding agents | Yes Issues, occurrences, Activity Trail, Issue Distribution Analytics, Quality Score and GFI. Your coding agent can set up the integration using Appxiom Agent Skills. | Yes Official Sentry MCP server for coding agents. Source: Sentry MCP |
| Data retention | 30–60 days 30 days on Starter, 60 days on Professional. | 30–90 days 30-day lookback on Developer, up to 90 days on Team and Business, with extra sampled retention on Business. Source: Sentry pricing |
Pricing model
Flat price per app, by device tier. Unlimited seats, no per-event billing.
Errors, spans and replays included per plan; more volume is reserved or pay-as-you-go.
Source: Sentry pricing
Android, iOS, Flutter, Kotlin Multiplatform and Web
Native Android and iOS SDKs, a Flutter plugin, a Kotlin Multiplatform SDK and a Web SDK, in one dashboard.
SDKs for Android, Apple, Flutter, Kotlin Multiplatform and JavaScript.
Source: Sentry platforms
Crash reporting and stack traces
Symbolicated stack traces with device state and Activity Trail, ranked by impact on user journeys.
Android ANRs
Detected live while the main thread is blocked, including Android 11+, and linked to the flow it stopped.
Watchdog below Android 11. On Android 11+, read from ApplicationExitInfo on the next app launch.
Source: Android ANR docs
iOS app hangs
Detected with a stack trace in debug and release builds.
On by default with a 2-second threshold; App Hangs V2 separates fully and partly blocking hangs.
Source: App hangs docs, App Hangs V2 changelog
Failed API calls
Status-code errors, network exceptions and timeouts, each an issue with the user's trail.
Slow and duplicate API calls
Delayed and duplicate calls reported as issues.
Request timing and N+1 API call patterns from tracing.
Source: OkHttp integration, Performance issues
Frozen frames and slow screens
Reported as issues with screen context on Android, iOS, Flutter and Web, plus screen load and cold/warm/hot start delays.
Slow and frozen frames as Mobile Vitals metrics; Frame Drop issues need profiling enabled.
Source: Mobile Vitals, Frame Drop
What the user did before the issue
Activity Trail: screen lifecycle, taps and clicks, network calls, custom markers and free memory at each step. It logs events rather than recording the screen, so there is nothing to mask.
Automatic breadcrumbs for navigation, taps, HTTP and system events.
Source: Android breadcrumbs, OkHttp integration
Memory leaks
Leaks in testing and production builds, plus memory spikes and abnormal usage. In production builds, leaks are detected at screen level (Activity, Fragment and ViewController). In Kotlin Multiplatform, leaks are tracked on the ViewModels and Compose Multiplatform screens you register with Ax.watchLeaks or AxWatchLeakOnDispose.
iOS watchdog terminations cover likely out-of-memory kills.
Source: Watchdog terminations
Release health
Issue Distribution Analytics across versions, plus one Quality Score (0–10) per release (Professional).
Crash-free sessions and users, adoption and session status, shown as separate metrics.
Source: Release health
Business impact of bugs
Goal Friction Impact scores each user journey from 0 to 10 and lists the issues behind drop-off (Professional).
Issues are prioritized by events, users affected and crash-free rates. No journey or goal metric.
Source: Release health
Severity by user impact
Every issue tagged fatal, major or minor by its effect on users.
MCP server for AI coding agents
Issues, occurrences, Activity Trail, Issue Distribution Analytics, Quality Score and GFI. Your coding agent can set up the integration using Appxiom Agent Skills.
Data retention
30 days on Starter, 60 days on Professional.
30-day lookback on Developer, up to 90 days on Team and Business, with extra sampled retention on Business.
Source: Sentry pricing
Where Appxiom and Sentry differ
Know which bugs are costing you users
Sentry tells you what broke, how often and for how many users. But a thousand events on a settings screen and fifty on the payment screen don't cost you the same.
Appxiom's Goal Friction Impact (GFI) scores each user journey from 0 to 10. Mark a flow with two calls (beginGoal and completeGoal on mobile, startGoal and endGoal on web), and Appxiom shows how many users tried it, how many failed, how many left the app, and which issues caused it. GFI is part of the Professional plan.
The key difference
Sentry:
Issues prioritized by events, users affected and crash-free rates.
Appxiom:
Journeys like checkout scored from 0 to 10, with the issues behind the drop-off.
Catch ANRs while they happen on Android 11+
Sentry detects iOS app hangs with a 2-second default threshold. On Android, its watchdog detects ANRs live below Android 11, and on Android 11+ it reports ANRs from the system's exit records on the next launch.
Appxiom flags Android ANRs while the main thread is still blocked, including on Android 11+, with the trail of what the user was doing.
The key difference
Sentry:
Android 11+ ANRs reported on the next launch.
Appxiom:
On Android 11+, ANRs flagged as they happen, tied to the flow they blocked.
Slow screens and leaks get their own issues
In Sentry, frozen frames and app start times sit in Mobile Vitals, and deeper performance issues depend on tracing and profiling being set up.
Appxiom raises memory leaks, slow and duplicate API calls, frozen frames, slow screens and startup delays as issues, each with a stack trace, device state and Activity Trail, from the SDK you already installed.
The key difference
Sentry:
A slow checkout screen is a metric on a dashboard.
Appxiom:
The same slow screen is an issue with the device, the version and the steps that led to it.
One score per release, one predictable bill
Sentry's release health shows crash-free sessions, crash-free users and adoption as separate metrics. Its pricing combines a plan with usage quotas for errors, spans and replays.
Appxiom rolls crashes, ANRs, memory and network issues into one Quality Score per version, so "is this release better?" has a single answer (Professional). Billing is a flat price per app, by device tier, with unlimited seats, so the week a release goes wrong isn't the week your bill changes.
The key difference
Sentry:
Several release metrics; usage-based quotas.
Appxiom:
One 0–10 score per release; flat price per app, by device tier.
Hand your coding agent the impact of each bug
Sentry also has an MCP server that lets coding agents look up Sentry issues, events and stack traces.
Appxiom's MCP server goes further. It gives your agent issues, occurrences and the full Activity Trail, plus GFI for each user journey, Quality Score and Issue Distribution Analytics. Appxiom Agent Skills set up the SDK on Android, iOS, Flutter, Kotlin Multiplatform and Web, and the @appxiom/mcp-skills package teaches the agent to rank goal drop-offs and judge severity by business impact.
The key difference
Sentry:
The agent reads Sentry issues, events and stack traces.
Appxiom:
The agent also sees which journeys are failing, what the user did first, and how much each issue matters.
Try Appxiom on your next release
You don't need to rip anything out to try Appxiom. Add it to your app, ship a release, and compare what each tool shows you.
Add Appxiom
Your coding agent can set up the integration using Appxiom Agent Skills. Prefer to do it by hand? Add the SDK and call init with your app and platform keys.
Track one key journey
Wrap a flow that matters, such as checkout or signup, in a goal to turn on Goal Friction Impact (Professional).
Compare on a real release
Ship a version and see which issues, hangs and journey drop-offs Appxiom surfaces. Your 30-day trial is free, with no credit card.
No data migration is needed. Appxiom reports issues from the first release that includes it.
Sentry alternative FAQs
Straight answers for teams comparing Appxiom and Sentry.
Last updated: 3 November 2026. Sentry features change often; every Sentry claim in the comparison table links to its official source.
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