PLAY THE BETAS

Every studio app is free to play on TestFlight before it reaches the App Store.
Join, play, and tell us what to fix next.

OPEN NOW

Ghost Note app icon: a singing teal ghost

GHOST NOTE

A theremin on your wrist.

OPEN NOW · version 1.0 (6) · join by January 9, 2027 · up to 100 testers

Want to hear what the ghosts are rehearsing? Play the next version free on TestFlight, before anyone else.

This build, tell us about:

  • Can you sing a ghost's tune back on the Watch, or is tilt-to-pitch too twitchy?
  • How does the choir sound through the Watch speaker and through headphones?
  • Does a note ever keep sounding after you lift your finger?

JOIN ON TESTFLIGHTABOUT GHOST NOTE

COMING TO TESTFLIGHT

Freetail app icon: a little free-tailed bat with gold eyes, wings wide before the moon

FREETAIL

Fly a Mexican free-tailed bat through the dark, by sound and touch.

COMING TO TESTFLIGHT

ABOUT FREETAIL

HOW A BETA WORKS

1

Get TestFlight

It's Apple's free app for trying apps before release. Install it once from the App Store.

2

Tap a link above

Each open beta takes up to 100 testers. The app installs like any other and updates itself when we ship a new build.

3

Tell us what you found

In TestFlight, open the app's page and tap Send Beta Feedback, or take a screenshot in the app and share it to TestFlight. Every note is read, and the fixes go into the next build.

A build stops working 90 days after we upload it, so each invitation shows its last day. When an app reaches the App Store, its beta stays open for the next version.

Updated October 11, 2026.

Testers hear the choir first.