How to Manage Cross-Platform Beta Releases Efficiently

With frameworks like Flutter, React Native, and MAUI, building cross-platform apps is easier than ever. But distributing them for beta testing? That can still be a mess of disparate portals, inconsistent versions, and confused testers.

This guide outlines how to streamline your release workflow to deliver iOS and Android betas in perfect sync in 2026.

The Goal: "One Click" Deployment

Your objective is simple: When you merge a PR to your main branch, both an iOS and an Android build should be generated and distributed automatically.

1. Unified Version Management

Stop manually editing build.gradle and project settings. Create a single file (e.g., version.json) in your project root:

{
  "version": "1.2.0",
  "build": 45
}

Use a script (or Fastlane plugin) to read this file and apply it to both native projects at build time: write CFBundleShortVersionString and CFBundleVersion into the iOS Info.plist, and versionName and versionCode into Android's build.gradle. This ensures iOS build 45 always corresponds to Android build 45.

2. Choosing the Right Distribution Platform

Option A: The Native Routes (TestFlight + Play Console)

Pros: Greatest fidelity to production; pre-testing store review processes.
Cons: Disconnected experiences. Testers need two invites. iOS reviews slow down the sync. If that review wait is the part that hurts, compare a TestFlight alternative that skips it.

Option B: Firebase App Distribution

Pros: Supports both platforms. Good CLI tools.
Cons: iOS setup is still complex (requires Ad Hoc/Enterprise profile management). See how it stacks up as a Firebase App Distribution alternative.

Option C: BetaDrop (Unified Link)

Pros: Upload both an IPA and APK. BetaDrop gives you a single "magic link" that detects the user's OS and serves the correct file.
Cons: iOS requires Ad Hoc/Enterprise signing.

3. Automating with Fastlane

Fastlane is the glue that holds cross-platform releases together. You can define a lane that builds both variants:

lane :beta_all do
  # 1. Update version from config
  update_versions

  # 2. Build Android
  gradle(task: "assembleRelease")
  supply(track: "internal") # or upload to other platform

  # 3. Build iOS
  gym(scheme: "MyApp")
  pilot # or upload to other platform
  
  # 4. Notify Team
  slack(message: "Cross-platform beta 1.2.0 (45) is live!")
end

In CI you don't even need Fastlane to reach a distribution host: the BetaDrop terminal CLI (install with npm i -g @betadrop/cli) can push a fresh .ipa or .apk from the same job that runs the build, and an MCP server exposes the same upload step to AI coding agents.

Distribute both builds from one place

Once your pipeline produces an .ipa and an .apk, they still need an HTTPS home testers can open from a phone. Send the iOS build to the IPA uploader and the Android build to the APK uploader; each returns an over-the-air install link and a QR code in seconds, with no TestFlight, no Play Store, and no tester accounts. Uploads up to 512 MB are supported, and links stay live long enough for a testing round — registered builds expire within about 30 days, anonymous guest links after 24 hours — so you re-upload per build instead of managing standing invites.

Summary

Treat your cross-platform app as a single product, not two separate projects. By unifying your versioning and CI/CD pipeline, you reduce errors and ensure your testers are always comparing apples to apples (or rather, Pixels to iPhones).

Frequently Asked Questions

Should I release iOS and Android betas simultaneously?

Ideally, yes. Shipping both platforms from the same commit keeps your testing cohort on one feature set, so bug reports and feedback map to a single build number instead of drifting across two separate release trains.

How do I keep version numbers in sync across iOS and Android?

Maintain a single source of truth (like a version.json file) for your version and build number, then have your build scripts inject it into both projects: CFBundleShortVersionString and CFBundleVersion in the iOS Info.plist, versionName and versionCode in Android build.gradle. That way iOS build 45 always corresponds to Android build 45.

Can I distribute both an iOS and an Android build from one place?

Yes. BetaDrop accepts both .ipa and .apk files, so a single testing round can live in one place instead of two portals. Each upload returns an instant over-the-air install link and a QR code, and testers install straight from their phone browser with no TestFlight, no Play Store, and no tester accounts.

How does cross-platform distribution work for React Native or Flutter apps?

Cross-platform frameworks benefit most from a unified pipeline. With Fastlane you can define one lane that runs gradle assembleRelease for Android and gym for iOS, producing an .apk and an .ipa from a single codebase in one command, then hand both artifacts to the same distribution step.

What upload size and expiry limits should I plan for?

BetaDrop accepts uploads up to 512 MB per build, which covers most debug .ipa and .apk files. Links are ephemeral by design: registered builds expire within about 30 days and anonymous guest links expire after 24 hours, so plan to re-upload each new build for the next round rather than treating a link as permanent.

Can I upload builds from CI without opening a browser?

Yes. BetaDrop ships a terminal CLI you install with npm i -g @betadrop/cli, so a CI job or Fastlane lane can push a fresh .ipa or .apk after every green build. There is also an MCP server (@betadrop/mcp) if you want an AI coding agent to trigger uploads as part of its workflow.