Tracebell press kit
At a glance
About the app
One paragraph
Tracebell is an unofficial, native iPhone client for Sentry, the error monitoring service. It sends a push notification the moment a new issue lands, shows the full stack trace on the phone, and lets developers resolve, archive, or assign the issue without opening a laptop. It works with sentry.io (US and EU) and self-hosted servers, and keeps the user's auth token on the device.
Long version
On-call developers usually learn about a production error from an email or a Slack ping, then open a laptop to see whether it matters. Tracebell shortens that loop to the phone already in their hand: a push notification rings when an issue is created, regresses, or trips an alert rule, and one tap opens the issue with its stack trace, breadcrumbs, and event history. Resolving, archiving, assigning an owner, and setting priority all work from the list or the detail screen.
The app is built around a strict privacy posture. The user's Sentry auth token is stored only in the iOS Keychain on the device, and the app calls the Sentry API directly — no proxy. The push relay, the one server involved, stores only a device push token, the organization slug, notification preferences, and a webhook secret; it never holds the token, and a private mode keeps issue titles off it entirely. There are no ads, no analytics, and no trackers.
The core client is free and stays free: every organization the user's token can access, full issue browsing and triage, releases with crash-free rates, plus a heads-up notification for new issues and a weekly summary. Tracebell Advanced — a subscription or a lifetime purchase — covers the features that need paid servers: real-time push for every event with event-type selection, home-screen widgets, Live Activity, and alternate app icons. The app is developed by Oikon, an independent developer in Japan, in English and Japanese, and is not affiliated with Functional Software, Inc. (Sentry).
What it does
- Heads-up notification for new issues and a weekly summary, free for everyone
- Real-time push for every event — created, regressed, resolved — with event-type selection (Advanced)
- Issue list with Sentry search syntax, project/environment/time filters, and swipe actions
- Full stack traces with surrounding source lines, breadcrumbs, request data, and tags
- Resolve, unresolve, archive, assign (members and teams), priority, bookmark
- Releases with crash-free session and user rates, free
- Home-screen and lock-screen widgets, Live Activity, and alternate app icons (Advanced)
- sentry.io US & EU (auto-detected) and self-hosted servers; every organization on the token
- Demo mode: the whole app explorable with fictional sample data
- English and Japanese, notifications included
App icon
The icon is an original bell-and-trace mark. Please use it as provided: no recolouring, cropping, or added effects. Write the name as Tracebell, one word, capital T.
Screenshots
App Store screenshots (6.9″ iPhone, 1320 × 2868) will be added here before launch. All screenshots show fictional demo data — no real organizations or customer data, and no Sentry branding.
About the developer
Oikon is an independent iOS developer based in Japan who builds native developer tools. Tracebell is designed, developed, and supported by one person.
Fair use of names
Tracebell is an independent, unofficial client. It is not affiliated with, sponsored by, or endorsed by Functional Software, Inc. Sentry is a registered trademark of Functional Software, Inc. When covering the app, please avoid wording that implies the app is made or endorsed by Sentry — "Tracebell, an unofficial Sentry client" is accurate.
Interviews, questions, promo codes
Email oikon48@gmail.com. Promo codes for Tracebell Advanced will be available to press at launch.