[shuhongwu]

We're currently only available on the App Store in the US while we're in early development.

You could try the TestFlight version if you're interested in testing it out - that should work in more regions.

[noyesno]

Where is the TestFlight link?

[shuhongwu]

Here:https://testflight.apple.com/join/x18p4hz7

Better have an iPhone with RAM > 4GB