mu.social TestFlight Beta

Public TestFlight betas are capped at 10,000 testers, so spots open only now and then. Here is when they opened recently and how long they lasted.

1×Spots opened, last 30 days

Oct 13Last time spots opened

When spots were open, last 30 daysOpenFull

Recent openings

Oct 13 · 8:30 PMstill open

Spots are open right now.

Getting Started with the mu.social Beta

On watchOS

Install TestFlight. Apple's official beta app, free on the App Store.
Request access. Select Get Early Access above, then confirm Open when prompted.
Accept the invitation. TestFlight presents mu.social with its latest build notes.
Install. Future builds from WhatsApp Inc. arrive on their own.

Good to know

Limited seats. Public betas hold up to 10,000 testers. When one is full, Notify Me tells you when a seat frees up.
Nothing is charged. In-app purchases run in Apple's sandbox. Your account is never billed.
Builds run 90 days. Each update renews the term and keeps your data.
Leave anytime. Reinstall mu.social from the App Store to return to the public release.

About mu.social

mu is a microblogging app for the open social web, built and hosted in Europe by Eurosky. mu runs on the AT Protocol, the same open network that powers Bluesky. Your account is portable: your posts, profile and follows live on a personal data server that you can move to another provider at any time, taking everything with you. Sign in with a eurosky.social account or with an account you already have elsewhere on the network. This build is an early public beta. Expect rough edges, and please tell us about them.

DeveloperWhatsApp Inc.

PriceFree

Release Date09/04/2026

Are you the developer? Claim this app

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Questions

How do I join the mu.social TestFlight beta on watchOS?

First, download Apple's official TestFlight app from the App Store on your Apple Watch. Then return to this page and select "Get Early Access" above. Your device will automatically open TestFlight and prompt you to accept the developer's beta invitation. Tap "Accept" and then "Install" to start testing mu.social. If it says "This beta is full", tap "Get Slot Alerts" to be told when a slot opens.

Is testing mu.social on TestFlight safe and free?

Joining is free, and TestFlight is Apple's official beta testing service. Apple reviews beta builds before they can be shared through a public link, and beta apps run in the same sandbox as App Store apps, so they can't access your data without your permission. Betas can still have bugs. The beta is made by WhatsApp Inc..

Do in-app purchases or subscriptions cost real money during TestFlight beta testing?

No. In TestFlight, Apple connects all transactions to its free Sandbox environment. Any in-app purchase, pro feature tier, or subscription inside mu.social will display "[Environment: Sandbox]" and costs $0.00. Your Apple Account or credit card will never be billed for purchases made within a TestFlight beta build.

Does the mu.social beta work on Apple Watch?

If the build includes a watchOS app, you install it from the TestFlight app on your paired iPhone. TestFlight shows the minimum watchOS version for each build.

What should I do if the mu.social TestFlight beta says "This beta is full"?

A TestFlight beta can have up to 10,000 external testers, and developers can set a lower limit. Spots open up again when testers leave the beta or when WhatsApp Inc. removes inactive testers, which often happens around a new build. Select "Notify Me" on this page for an email the moment a seat opens (CodeWing Plus) or follow our free Telegram channel. You can also find similar betas in the Apps category.

Will installing the beta replace my current App Store version of mu.social, and will I lose my data?

Installing the TestFlight beta will replace the App Store version on your Apple Watch, but all your local app data, documents, logins, and configurations are safely preserved. If you ever want to switch back to the stable public release, you can simply redownload mu.social directly from the App Store at any time without losing your data.

How long does a TestFlight beta build last before it expires?

Each TestFlight build has a maximum lifespan of 90 days from the day the developer uploaded it to Apple. You can see the countdown days directly beneath mu.social's title in your TestFlight app. Developers regularly release new builds with improvements, which automatically resets the 90-day timer so your testing is uninterrupted.

How do I send feedback or report bugs for mu.social?

You can send feedback directly to WhatsApp Inc. by taking a screenshot while using mu.social and tapping "Share Beta Feedback", or by opening TestFlight, tapping mu.social, and selecting "Send Beta Feedback". You can include notes, screenshots, and system logs to help the developer fix issues before the official App Store launch.