Measure your smallest control
Give the smallest tappable size, spacing to its neighbour, and total control count.
TOUCH TARGET CHECK
Touch Target
Detects mobile controls that are too small, too close together, or difficult to interact with reliably.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Get a tap-reliability score
Touch Target compares your measurements against the 40px/8px guideline.
Resize and re-test
Increase undersized controls and spacing, then test on a real device with a thumb.
Continue learning: Who should approve MVP requirements?
Frequently asked questions
Why 40px as the minimum?
40x40px (with some guidelines citing 44px) is the widely-cited minimum for reliable touch accuracy, based on average fingertip contact size.
Can I keep a small icon with a bigger tap area?
Yes — pad the tappable hit area to the minimum size even if the visible icon stays smaller; that's the standard fix that doesn't compromise visual density.
Does spacing matter as much as size?
Yes — even correctly-sized targets placed too close together cause mis-taps, especially for larger fingers or motor-impaired users.
How We Compare
| Feature | MVPHub | Manual device testing | Figma accessibility plugins |
|---|---|---|---|
| Instant guideline check | Included | Not included | Limited |
| No setup required | Included | Included | Not included |
| Tests real thumb interaction | Not included | Included | Not included |
| Free | Included | Included | Limited |
Manual device testing confirms real-world tap accuracy once something is built. Touch Target gives a fast guideline check earlier, from planned measurements.
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