How mobile app design differs from web design
Do mobile apps and websites really design differently? Measured, yes — and not where you'd guess. Across 98 mobile apps and 314 websites in Mozaika's corpus, mobile apps round harder (a 14px median corner vs 8px), run longer motion (300ms vs 250ms) and lean darker (31% dark vs 26%). Body text is 16px on both.
This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/measured/mobile.
14px median mobile app corner — vs 8px on the web
Mobile apps vs the web, measured
| Norm | 98 mobile apps | 314 websites |
| Corner radius (median) | 14px | 8px |
| Fully-pill corners | 33% | 19% |
| Default dark mode | 31% | 26% |
| Motion duration (median) | 300ms | 250ms |
| Spacing on a 4px grid | 48% | 53% |
| Spacing on an 8px grid | 47% | 41% |
| Body text (median) | 16px | 16px |
| Hero headline (median) | 59px | 64px |
| #1 accent — Blue | 36% | 32% |
What the numbers say
- Mobile apps round harder. The median mobile app corner is 14px against 8px on the web, and 33% go fully pill versus 19%.
- Mobile apps motion runs longer: a 300ms median transition versus 250ms on the web.
- Mobile apps lean darker — 31% default to a dark scheme against 26% of websites.
- On mobile the 4px and 8px grids are close (48% vs 47%), while the web has tilted to 4px (53% vs 41%).
- Same body, smaller heroes: body text sits at 16px on both, but the median mobile app hero is 59px against 64px on the web.
- Blue rules both — the #1 accent on 36% of mobile apps and 32% of websites.
Questions people (and AI assistants) actually ask
How is mobile app design different from web design?
Measured across 98 mobile apps and 314 websites: mobile apps use larger corner radii (14px vs 8px median, 33% fully pill), longer motion (300ms vs 250ms), and default to dark slightly more often (31% vs 26%). Body text is the same 16px on both.
What corner radius do mobile apps use?
The median measured mobile app corner radius is 14px — larger than the web's 8px — and 33% of mobile apps use fully pill-shaped corners.
Do mobile apps use dark mode more than websites?
A little. 31% of measured mobile apps default to a dark scheme versus 26% of websites — most of both still ship light by default.
How long should a mobile app animation be?
The median measured mobile app transition is 300ms, a little longer than the web's 250ms; most mobile app motion still sits in the 150–300ms band.
How is this measured?
By reading the design DNA of 98 mobile apps and 314 websites in Mozaika's corpus — corner radii, colour schemes, type sizes, spacing grids and motion durations — measured from the live design system, not estimated. Free to cite under CC BY 4.0.
Related measured norms
Normal border-radius · UI transition duration · Dark mode vs light mode