If your iOS team lives in Slack, the question isn't whether to integrate your tools. It's which integrations actually save you time versus which ones just add noise.
Here are the ones that matter.
Source control: GitHub
The GitHub Slack integration connects your repositories to channels. Run /github subscribe owner/repo and you start getting notifications for issues, pull requests, commits, and releases.
What makes it useful:
- Thread grouping. Issues and PRs get grouped under a parent card. Updates arrive as replies, not new messages. Less noise.
- Actions from Slack. Resolve, archive, or assign issues directly from the notification. No tab switching.
- Scheduled reminders. Get a daily summary of PRs waiting for your review. Set it per-person or per-channel.
- Link previews. Paste a GitHub URL and Slack renders the issue, PR, or code snippet with context.
You can also subscribe to Actions workflow notifications, reviews, comments, branches, and discussions. Most teams start with the defaults (issues, PRs, commits, releases) and add from there.
CI/CD: EAS, Bitrise, Codemagic, and Fastlane
Build notifications in Slack tell your team when builds finish, fail, or get deployed. Every major mobile CI/CD tool supports this.
EAS (Expo Application Services) has a built-in slack job type in workflows. Point it at a webhook URL and it sends build status with app identifier, version, build ID, and platform. Supports plain text or rich Slack Block Kit payloads. You can also use eas/send_slack_message in custom build steps with conditionals like always(), success(), and failure(). EAS also handles TestFlight distribution, Maestro testing, and OTA updates.
Bitrise has the slack@3 step. Add it at the end of any workflow and it posts build results to your channel. Typical iOS pipeline: clone, install CocoaPods, build, test, archive, deploy to TestFlight, then Slack notify. It can even include a QR code linking to the install page.
Codemagic has native Slack support in codemagic.yaml. Configure the channel, toggle notifications for build start, success, and failure independently. Also supports custom Block Kit payloads via scripts with build variables like project ID, build ID, and artifact URLs. Covers Flutter, React Native, and native iOS.
Fastlane has a built-in slack action. It's typically the last step in a deployment lane: build_app, upload_to_app_store, slack(message: "App released!"). Default payloads include git branch, author, last commit, and test results. You can add custom fields for build date, version, or environment. Most iOS teams already use Fastlane for code signing and deployment, so the Slack action is a natural fit.
E2E testing: Maestro Cloud
Builds passing doesn't mean the app works. Maestro Cloud runs your UI test flows on real devices and posts the results to Slack.
Connect Slack in the Maestro Console settings, pick a channel, and every test upload posts a summary when it finishes. You see which flows passed, which failed, and why. The Slack message links back to the Maestro Console for screenshots, recordings, and logs.
Maestro also supports generic webhooks if you want to route results to other systems. The webhook payload includes flow-level status, failure reasons, timing, platform, and app identifier.
If you're using EAS, Maestro flows can run as part of your EAS Workflow. But Maestro Cloud's own Slack integration covers standalone test runs and scheduled test suites, the ones that catch regressions between releases.
App Store Connect webhooks: Yeethook
CI/CD tools tell you when your pipeline finishes. E2E tests tell you when your app works. But what about when Apple does something? App review decisions, TestFlight build processing, crash report submissions, subscription events. Those come from App Store Connect webhooks and App Store Server Notifications V2.
Yeethook catches those webhooks and delivers them to Slack with full event context. It uses your p8 API key to call the App Store Connect API and attach what Apple doesn't include in the payload: crash logs, tester names, device models, screenshots, subscription details.
Route different event types to different channels. Crashes to #bugs, reviews to #releases, subscriptions to #revenue. Yeethook monitors webhook health on both the Apple side and the Slack side. If something breaks, it detects and repairs it.
Crash monitoring: Sentry
Sentry catches errors and crashes in production and sends alerts to Slack. The integration is deeper than just notifications.
- Alert routing. Send alerts to channels (
#crashes) or directly to people (@oncall). Configure which issues trigger alerts based on frequency, severity, or tags. - Actions from Slack. Resolve, archive, or assign issues directly from the notification card. No context switching.
- Team notifications. Run
/sentry link teamin a channel and every team member gets relevant alerts there. - Personal notifications. Run
/sentry linkto receive workflow, deploy, and issue alerts as DMs.
Sentry works with native iOS (Swift, Objective-C), React Native, and Flutter. Expo specifically recommends Sentry for production crash reporting. EAS Update even has a built-in upload_sentry_sourcemaps parameter so source maps are uploaded automatically during OTA updates.
Project management: Linear
Linear keeps your team's issue tracker in sync with Slack.
- Channel notifications. Post to a Slack channel when issues are created, commented on, or change status. Anyone in the channel sees it, even if they're not in Linear.
- Personal notifications. Get the same notifications you'd see in your Linear Inbox delivered as Slack DMs. Choose which issue, project, and team updates to receive.
- Project and initiative updates. Route project updates to dedicated channels like
#p-project-name. Edits to updates are reflected in Slack too. - Actions from Slack. Linear members can take actions on issues directly from the notification.
The stack
Here's how these integrations map to an iOS team's workflow:
- Code pushed → GitHub notifies the channel, threads PR discussions
- Build triggered → EAS, Bitrise, Codemagic, or Fastlane posts build status
- E2E tests run → Maestro Cloud posts pass/fail results with links to recordings
- Apple processes the build → Yeethook delivers the webhook with full context
- Tester submits crash report → Yeethook posts the crash log, device info, and tester name
- Tester sends screenshot feedback → Yeethook posts the screenshot and comments
- App goes into review → Yeethook posts the status change
- Crash in production → Sentry alerts the right people with stack traces
- Bug filed → Linear notifies the channel and tracks the fix
Each tool covers a different phase. Together, your team knows what's happening without leaving Slack.
Bonus: AI coding from Slack
You can also write code without leaving Slack.
Claude Code has a full Slack integration. Mention @Claude with a coding task in any channel and it automatically creates a Claude Code session on the web. Claude gathers context from the thread (error reproductions, user reports, team discussion) and uses it to inform its approach. It posts progress updates to the thread as it works, then @mentions you with a summary and action buttons when done. You can view the session, create a PR, or change the repo directly from Slack. Useful for kicking off bug fixes or small features while you keep doing other work.
Cursor also has a full Slack integration. Mention @Cursor with a prompt and it spins up a Cloud Agent that works on a branch, pushes changes, and creates a PR. It auto-selects the right repo based on your message, recent activity, or routing rules you configure per channel. You can specify a model (@Cursor with opus, fix the login bug) or a branch (branch=dev). Thread context works the same way: discuss a bug with your team, then @Cursor in the thread and the agent reads the full conversation. Status updates show emoji reactions (running, completed, failed) and you get a link to the PR when it's done.
Neither is iOS-specific, but if your team already lives in Slack, being able to say "fix this" in a thread and get a PR back is hard to ignore.