Tracebell is an unofficial client. It is not affiliated with Sentry (Functional Software, Inc.).

The next production error should find you — not the other way around.

Tracebell puts your Sentry issues on your iPhone. Get a push notification when a new error lands, read the stack trace on the spot, and resolve, archive, or assign the issue without opening a laptop. Paste a token and your projects are there.

Coming soon to the App Store See what it does

Core features free, and they stay free · Works with sentry.io (US & EU) and self-hosted Sentry · English & 日本語

Triage from wherever you are

Everything between “something broke” and “someone owns it”, readable on the screen already in your pocket.

A bell for new errors

Connect a webhook from your own Sentry organization and Tracebell rings when things break. Everyone gets a heads-up for new issues and a weekly summary, free. Tracebell Advanced delivers every event in real time — created, regressed, resolved — and lets you choose exactly which event types notify you, filtered by project and level.

The relay that forwards notifications never holds your Sentry token — your phone fetches the details itself, straight from the Sentry API.

Real-time push for every event: Tracebell Advanced
Screenshot placeholder — lock screen with a Tracebell notification (demo data)
Screenshot placeholder — stack trace view (demo data)

The stack trace, phone-sized

Open an issue and see what actually happened: the exception, every frame with surrounding source lines, an “app frames only” toggle, breadcrumbs, the request, and the tags that matter. Browse the event history of an issue, newest first.

Often the stack trace alone tells you whether this can wait until morning. Now you can know from the sofa.

Resolve it before you sit down

Resolve, unresolve, or archive an issue, pick who owns it from your members and teams, set its priority, and bookmark it for later — with a swipe from the list or a tap from the detail screen. Actions go through the same Sentry API the web dashboard uses.

Search with the Sentry query syntax you already know, and filter by project, environment, and time range.

Screenshot placeholder — issue list with swipe actions (demo data)
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Home-screen widgets

Unresolved count at a glance, the three newest issues, and a lock screen widget for your busiest project. Advanced

◉

Live Activity

Follow an incident from your Lock Screen while it unfolds, without reopening the app. Advanced

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Alternate app icons

Pick an icon that fits your home screen. Advanced

⟳

Releases & crash-free rate

See each release with its crash-free session and user rates, so you know whether the latest deploy made things better. Free.

⌂

sentry.io and self-hosted

Works with sentry.io in the US and EU regions — detected automatically — and with your own self-hosted Sentry server.

⇄

Every organization, free

Every organization your token can access is there — switch between them any time, on the free plan.

◫

Projects at a glance

Every project with its unresolved count and 24-hour event volume, so you can tell a quiet day from a loud one.

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Demo mode

Not ready to paste a token? Explore the entire app, Advanced features included, with a built-in fictional workspace.

文

English and Japanese

The whole app — notifications included — in English and Japanese.

Free vs. Tracebell Advanced

Browsing and triaging issues is free, and stays free. Advanced covers the features that need paid servers: real-time notifications, widgets, and Live Activity.

Free Advanced
Every organization your token can access (sentry.io US/EU or self-hosted) ✓ ✓
Issue list, search, and filters ✓ ✓
Issue detail, events, and stack traces ✓ ✓
Resolve, archive, assign, priority, bookmark ✓ ✓
Releases and crash-free session/user rates ✓ ✓
Heads-up notification for new issues + weekly summary ✓ ✓
Demo mode with sample data ✓ ✓
Real-time push for every event (created, regressed, resolved) — ✓
Choose which event types notify you — ✓
Home-screen and lock-screen widgets — ✓
Live Activity during an incident — ✓
Alternate app icons — ✓

Pricing

Tracebell is free to download, and the core features stay free. Tracebell Advanced is an optional upgrade — pick the plan that fits.

Monthly
¥500
per month
US $2.99 / month
  • Everything in Advanced
  • Cancel anytime in the App Store
Lifetime
¥9,700
one-time purchase
US $99.99 one-time
  • Everything in Advanced, forever
  • No subscription

Prices are shown as they appear on the Japanese and US App Store and may vary by region. Purchases are handled by Apple; subscriptions renew automatically unless cancelled at least 24 hours before the end of the period, and can be managed or cancelled in your App Store account settings. If you just want to say thanks, the app also has a small tip jar — tips support development and unlock nothing.

Frequently asked questions

Something else on your mind? Email oikon48@gmail.com.

Is this an official Sentry app?

No. Tracebell is an independent, unofficial client built by an individual developer on Sentry's public API. It is not affiliated with, sponsored by, or endorsed by Functional Software, Inc. Sentry is a registered trademark of Functional Software, Inc.

How does sign-in work? Where does my token go?

You create a User Auth Token in your Sentry account settings and paste it into the app. The token is stored only in the iOS Keychain on your device — it is never synced to iCloud and never sent to any server of ours. The app talks directly to the Sentry API over HTTPS.

Which token scopes do I need?

For reading: org:read, project:read, and event:read. To resolve, archive, or assign issues, add event:write, and member:read for the assignee picker. The connect screen explains both presets, and the app detects missing scopes and disables what won't work.

Which Sentry setups are supported?

sentry.io organizations in both the US and EU regions (the app detects each organization's region automatically), and self-hosted Sentry servers via their URL. Every organization your token can access is available for free. To use a different Sentry account, sign out and connect with that account's token.

How do push notifications work?

You create an Internal Integration in your own Sentry organization and point its webhook at your personal Tracebell relay URL. When Sentry fires the webhook, the relay forwards a minimal notification to your iPhone via Apple's push service. Everyone gets a heads-up for new issues and a weekly summary; Tracebell Advanced delivers every event in real time and lets you choose which event types notify you. The relay stores only what delivery needs — your device's push token, your organization slug, your event-type preferences, and a webhook secret — and never your Sentry token. See the privacy policy for the full list. Creating an Internal Integration typically requires an Admin, Manager, or Owner role in your Sentry organization.

Is it free?

Yes — and the free part is the whole client: every organization your token can access, issue browsing and search, stack traces, triage actions, releases with crash-free rates, plus a heads-up notification for new issues and a weekly summary. No time limit. Tracebell Advanced, an optional purchase, adds real-time push for every event with event-type selection, widgets, Live Activity, and alternate app icons — the features that need paid servers.

Can I try it without a Sentry account?

Yes. Demo mode opens a fictional workspace with projects, issues, and stack traces, so you can try every screen — Advanced features included — before pasting a token.

Is my data secure?

Your token lives in the iOS Keychain, all requests go directly from your device to the Sentry API over HTTPS, and there are no ads, no analytics, and no trackers in the app. The only server involved is the optional push relay, which stores the minimum needed to deliver notifications.

How do I report a bug or request a feature?

Email oikon48@gmail.com or use the feedback link in the app's settings. Reports go straight to the developer.

Stop refreshing the dashboard.

Put a bell on your errors. The core client is free — real-time alerts are a 14-day trial away.

Coming soon to the App Store