• Success Criterion 2.5.4
  • Conformance level A

Tilt-Based Scrolling With No Conventional Control Option

2.5.4 — Motion Actuation

Scenario

Setting

A fitness app's workout tracker

What’s wrong

Tilt-based scrolling/parallax input without a conventional control.

Example

A fitness app's workout tracker is a good example: tilt-based scrolling/parallax input without a conventional control.

Why it matters

People with tremor and people whose device cannot be moved freely. On a fitness app's workout tracker specifically, they get stuck and can't reach the control.

How to test

Try to scroll/trigger parallax via a conventional control instead of tilting: if tilt is the only input method, it fails.

How to fix

A conventional on-screen control must duplicate the motion-triggered feature, and motion input must be able to be turned off.

Outcome

Fixed, a visitor to a fitness app's workout tracker can reach and operate the control without a mouse.

Who is affected

People with tremor and people whose device cannot be moved freely.

Learn more

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