Code-signing credential chaos
Rotating expired certificates and sharing profiles across a team without match leads to "Valid signing identity not found" failures. We implement match from scratch and onboard the full team.
Fastlane match CI/CD Auto-submit
Fastlane Automation Services for Mobile Build, Sign and Release Pipelines
Eliminate manual code signing, screenshots and store submissions. Fastlane automates the entire iOS and Android release pipeline — match for encrypted shared signing credentials, gym for reproducible builds, pilot for TestFlight distribution and deliver for metadata and submission — wired into your existing GitHub Actions or GitLab CI.
We configure Fastlane for mobile teams shipping iOS and Android apps — replacing the click-through workflows in Xcode and Android Studio with reproducible, CI-executable lanes. match manages code-signing certificates and provisioning profiles in a shared encrypted Git repository so any engineer can sign a release build without manual certificate downloads. gym produces deterministic IPA and AAB files. pilot distributes betas to TestFlight groups. deliver pushes metadata and binaries to App Store Connect and Google Play Console.
Challenges
Industry challenges we solve
CI environment differences from local builds
Fastlane lanes that run locally fail in CI due to missing Xcode command-line tools, Homebrew paths or keychain differences. We build lanes in Docker / clean macOS runners from the start.
App Review metadata rejections
Incorrect keywords, missing required screenshots or localisation mismatches block submission. We use fastlane deliver to source metadata from a checked-in JSON spec and validate before upload.
Android keystore management
Keystores stored on developer machines are a single point of failure. We configure encrypted keystore storage in CI secrets and sign in the build pipeline — no local keystore needed.
Phased rollout orchestration
Manual phased rollout management in App Store Connect and Play Console is error-prone. We add deliver actions that set the rollout percentage and halt on crash-rate threshold via Sentry/Crashlytics webhooks.
Multi-environment lane management
Dev, staging and production environments need different bundle IDs, signing identities and backend URLs. We implement environment-parameterised lanes with .env file injection.
Solutions
Solutions we build
Code signing with match
Encrypted shared certificate and provisioning profile repository — one setup, every engineer can sign and every CI job can build.
Automated beta distribution
TestFlight and Google Play internal/alpha/beta track distribution on every main branch commit — testers always have the latest build.
App Store and Play Store submission
Metadata, screenshots, changelogs and binary upload in a single lane — no manual Console clicks for routine releases.
CI/CD integration
Fastlane lanes wired into GitHub Actions, GitLab CI or Bitrise — reproducible builds from any clean environment.
Screenshot automation
snapshot captures localised screenshots on every device size — eliminating the day spent manually running the device matrix.
Phased rollout and halt automation
Automated rollout percentage updates with crash-rate-based halt triggers to protect users from bad releases.
Stack
Technology stack
Fastlane, match, gym, pilot, deliver, snapshot, scan, GitHub Actions, GitLab CI, Xcode, Gradle, App Store Connect API, Google Play API.
Compliance
Compliance & regulations
SOC 2-aligned CI practices · Encrypted credential storage · Reproducible builds
EU
- GDPR — no user data processed; CI credential security practices.
- App Store Guidelines — compliant metadata, screenshot and submission workflows.
- Play Policy — compliant data safety form and AAB submission.
- SOC 2 — encrypted credential storage in CI secrets.
US
- App Store Guidelines — compliant submission workflows.
- Play Policy — compliant AAB and metadata submission.
- CCPA — accurate privacy nutrition label and data safety form.
- HIPAA — no user data processed; credential security practices.
Cases
Selected Fastlane CI/CD case studies
Social Media · Consumer Tech
JoyJet
Production social platform — App Store + Google Play, live across the US and EU — with geo Radar, encrypted messaging and a virtual economy.
Consumer Privacy · Mobile
LiMP
Consumer WireGuard VPN app for iOS and Android with zero-log architecture, launched across the US and EU.
LegalTech · Mobile · CRM
Signatory Pro
Native iOS and Android e-signature clients with a Symfony + React CRM for a cross-border law firm — KYC onboarding and a defensible evidence trail for US & EU matters.
Why YuSMP
Why mobile teams choose YuSMP for Fastlane
Zero manual release steps
We configure Fastlane so any CI job can produce, sign and submit a production binary — no Xcode GUI, no manual certificate download, no click-through Console.
Credential security from day one
match with encrypted Git storage and CI secrets management — no certificate on a developer's laptop, no keystore checked into source.
Lanes you can maintain
We document every lane, write tests with fastlane scan and hand over a Fastfile your team can modify without calling us.
FAQ
Fastlane FAQ
What does Fastlane actually automate?
Fastlane automates code signing (match), building IPA/AAB (gym), running tests (scan), capturing screenshots (snapshot), distributing betas (pilot) and submitting to App Store Connect and Google Play (deliver). Each action is a composable lane you run locally or in CI.
How does match work for code signing?
match stores certificates and provisioning profiles encrypted in a Git repository (or S3/Google Cloud Storage). Any engineer or CI job clones the repo, decrypts with a passphrase and installs the identities — no manual Apple Developer Portal downloads.
Can Fastlane run in GitHub Actions?
Yes. We configure a Fastfile with lanes for beta and production, a .env file for environment variables, and a GitHub Actions workflow that installs dependencies, runs match and executes the correct lane on each trigger.
How do you manage Android code signing in Fastlane?
We store the keystore as a Base64-encoded GitHub/GitLab secret, decode it in the CI job, and reference it in the Gradle signing configuration. The keystore never touches source code.
Does Fastlane work for React Native and Flutter apps?
Yes. React Native and Flutter projects produce Xcode and Gradle build targets that Fastlane can build and sign. We configure the Fastfile to handle the framework-specific prebuild steps (e.g. flutter build, pod install) before invoking gym or gradle.
How do you handle TestFlight distribution?
The pilot action uploads the IPA to App Store Connect, assigns it to the specified TestFlight group and sends tester invitations. We configure the lane to run on every merge to the main branch for continuous beta delivery.
Can Fastlane automate App Store metadata and screenshots?
Yes. deliver syncs metadata (title, description, keywords, changelogs) from a checked-in JSON spec. snapshot captures localised screenshots on every device size using UITest — eliminating the manual device matrix for every release.
Automate your mobile release pipeline with senior Fastlane engineers
Response within 1 business day. NDA on request.