Moonbuddy was designed especially for children. It includes a few simple breathing exercises with rhythms that suit younger users. These rhythms tend to be a bit fast for adults, which means they might not feel as calming if you're older.
Moonbuddy and moonbird are different tools, made for different needs:
moonbuddy
Pre-programmed breathing exercises
Expanding belly that guides the breath
No screen, no app, fully intuitive for kids
moonbird
Personalised breathing via the app
Expanding wings that adapt to your rhythm
Includes biofeedback, HRV tracking, guided audio, tips, and a 21-day breathing plan
Both devices can be charged with the same cable.