Free Ways to Distribute Your iOS & Android App to Testers (2026)
There are genuinely free ways to get your app to testers in 2026 — TestFlight, Firebase App Distribution, Diawi, Google Play internal sharing and Appisto's free tier — but every one has a limit that decides how far it takes you. This guide lists the free options for iOS and Android with their exact limits, so you can pick one that won't run out mid-test.
"Free" almost never means "unlimited." It means free up to a device count, a build size, an expiry window, or a single app. Knowing the number up front saves you a migration halfway through a test cycle.
The free options and their real limits
- TestFlight — free to use, but requires the $99/year Apple Developer membership. iOS-only, builds expire after 90 days, external testers wait on Beta App Review.
- Firebase App Distribution — free, cross-platform, needs a Google account; US data processing and manual iOS provisioning.
- Diawi (free tier) — instant OTA links, but ~1-day expiry, 2 installs, 20 MB max. Fine for a one-off (see Diawi alternatives).
- Google Play Internal App Sharing / Internal Testing — free beyond the one-time $25 Play registration; instant-install links for Android testers.
- Appisto (free tier) — over-the-air iOS + Android distribution: 1 app, 1 member, 10 build uploads/month, plus the REST API. EU-hosted.
- AppBox — free, Dropbox-based OTA for iOS; solo-developer friendly.
What "free" really means
| Tool | Platforms | Real free limit | Expiry | Catch |
|---|---|---|---|---|
| TestFlight | iOS | 100 internal / 10,000 external | 90 days | Needs $99 program; external review |
| Firebase | iOS + Android | Effectively generous | You control | Google account, US data |
| Diawi (free) | iOS + Android | 2 installs, 20 MB | ~1 day | Link-only, no groups |
| Play internal sharing | Android | Practical for testing | You control | Android only, $25 one-time |
| Appisto (free) | iOS + Android | 1 app, 10 uploads/mo | You control | 1 member on free tier |
| AppBox | iOS | Dropbox quota | Dropbox-based | iOS only |
When free stops being enough
You outgrow the free tier when you hit a second app, a second team member, more than a handful of builds a month, or need Android and iOS in one place. Common upgrade triggers:
- More than one app or teammate → you need a paid plan with multiple members.
- Recurring client testing → you need persistent tester groups, not one-off links.
- CI/CD uploads → you need an API and enough monthly build headroom.
At that point, compare the best internal app distribution tools. For platform-specific how-tos, see distributing iOS without the App Store and Android without the Play Store.
Frequently asked questions
What's the best free way to send an iOS app to a tester? With the $99 Apple membership, TestFlight for larger groups; for a quick internal build, an ad hoc OTA link or Appisto's free tier is faster. All avoid the App Store.
Is Firebase App Distribution really free? Yes — no usage fee for distributing to testers on iOS and Android. The cost is indirect: Google account, US data processing, manual iOS provisioning.
Can I distribute an app for free without the App Store? Yes — Firebase, Diawi's free tier and Appisto's free tier all work without a store, though iOS still needs the $99/year membership to sign builds.
Key takeaways
- Free options exist for both platforms — the deciding factor is each one's limit.
- Diawi free expires links in a day; TestFlight expires builds in 90 days; Appisto free is capped at one app and ten uploads a month.
- For cross-platform, EU-hosted free distribution, Appisto's free tier includes the REST API.
- Know the limit before you start so you don't have to switch tools mid-test.
Ready to streamline your internal app distribution?
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