Homey's software is always being improved. As experimental update tester you will receive updates before they are released to everyone, but these updates come at a cost: they usually contain bugs or missing features.
We recommend to not enable experimental updates unless you are a developer or are aware of the risks.
If you'd still like to enable experimental updates, visit https://developer.athom.com/tools/settings and log in with your account that is linked to your Homey.
To get the experimental version of our app updates, iOS users can additionally join the TestFlight program here: https://testflight.apple.com/join/tA2e9vby
Android users can additionally join the Open Beta program here: https://play.google.com/apps/testing/app.homey