Measure and track wrist function using your iPhone's motion sensors. Complete guided assessments to understand mobility, control, flexibility, and balance. Monitor progress over time and identify areas for focus.
5.0(3 ratings)
FreeIn-App Purchases
Best stiff alternatives: apps like stiff: screen time blocker
10+ similar apps compared and reviewed
4.8 avg rating
10 free apps
Updated October 2026
Whether you want more options like stiff or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to stiff
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