Offline motion sound effects
WristFX
Move, tap, and feel an instant playful response — with no account, ads, tracking, or network connection.
WristFX
Turn a tap or wrist movement into one of six original sound and haptic effects, entirely on device.
iPhone and Apple Watch
Local-first
Six original effects
Switch between Pulse, Spark, Snap, Sweep, Bonk, and Drum, with sound and haptics controlled independently.
Motion or manual play
Enable foreground motion triggering on iPhone or Apple Watch, or use the large tap control at any time.
Private and fully offline
Motion is processed on device, raw samples are never saved, and preferences sync only between your paired devices.
Privacy
Your data stays on your device
WristFX is designed to work locally and privacy-first. Read the full privacy policy for details on what it does and doesn't collect.