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About
Measure your physiological state by testing your fine motor control. Hold your iPhone steady with your arm outstretched for one minute to pass the challenge. The app tracks your ability to maintain stillness against gravity and fatigue.
✓Measure steady hand control
✓Test against gravity
✓Track physiological state
✓Challenge friends and colleagues
✓Simple, intuitive gameplay
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What's New in Pockster StrongArm
2.0
July 11, 2026
Updated to the latest Swift code and core mechanics for the best user experience.
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FAQ
What is Pockster StrongArm?
Pockster StrongArm is an application designed to measure your fine motor control and physiological state. It challenges you to hold your iPhone steady with your arm outstretched for one minute.
How does Pockster StrongArm work?
The app uses the iPhone's sensors to detect slight movements. You must hold the device perfectly still, with your arm outstretched, to pass the one-minute test. Tones indicate when the phone is not level, and movement resets the count.
What is the goal of Pockster StrongArm?
The primary goal is to test and measure your ability to maintain a steady hand, which can be an indicator of your overall physiological state and how stress affects you.
Can I compare my results with others using Pockster StrongArm?
Yes, the app allows you to check the state of your friends and colleagues, enabling a competitive element to the steadiness challenge.
What devices does Pockster StrongArm support?
Pockster StrongArm is supported on iPhone devices, as indicated by its compatibility with the iOS ecosystem.
What is the price of Pockster StrongArm?
Pockster StrongArm is a paid application, available for purchase at $2.99.
Does Pockster StrongArm have ads?
No, Pockster StrongArm does not contain advertisements. It is a paid application without any ad interruptions.
How often is Pockster StrongArm updated?
The latest version of Pockster StrongArm is 2.0, and it was last updated on July 11, 2026. This indicates a recent update, suggesting ongoing development and support.