Calculates engineering tolerances for various mechanical components based on ISO and ANSI standards. It determines size limits, deviations, and fit types for holes and shafts, offering schematic representations of fits.






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With an average user rating of 4.6★, the fit tolerance iso category is one of the App Store's strongest. Browse all 53+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (2) | Yes | No | Aug 2026 | ||
| 2 | Free | — | Yes | Yes | Sep 2026 | ||
| 3 | $2.99 | 5.0★ (5) | No | No | Oct 2026 | ||
| 4 | Free | 4.2★ (6) | No | Yes | Oct 2026 | ||
| 5 | Free | — | Yes | Yes | Nov 2026 | ||
| 6 | $0.99 | 5.0★ (1) | No | No | Oct 2026 | ||
| 7 | Free | — | No | No | Sep 2026 | ||
| 8 | Free | — | No | Yes | Oct 2026 |






Calculates engineering tolerances for various mechanical components based on ISO and ANSI standards. It determines size limits, deviations, and fit types for holes and shafts, offering schematic representations of fits.











This app calculates the fit tolerance for holes and shafts based on ISO standards. Users input a diameter, select tolerance ranges and classes, and the app displays fitting tolerance values, distinguishing between clearance, transition, and interference fits. It also calculates minimum and maximum clearance or interference.