By Team Edtoolkits · Design & branding
Overlay one-handed and two-handed thumb reach zones on a phone screenshot, and check any button for reach and a 9 mm tap-target size.
Use the guide alongside the working tool.
Open Thumb Zone Simulator →Pick the exam and document
Add a phone screenshot, or try the sample.
Frame and clean up
Choose right, left or both thumbs and the phone size.
Create and check
Click a button to see how easy it is to reach and compare it with a 9 mm target, then export.
Privacy and limits
Zones follow published thumb-reach studies; hands and grips vary, so treat them as a guide. The image stays on your device.
Ready to apply this workflow?
Try Thumb Zone Simulator →Explore a related workflow
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Keep your original files and review the result. Found unclear instructions? Contact Team Edtoolkits.