250+ iOS apps curated and reviewed
Every iPhone needs a few good osg calculator apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (2) | No | No | May 2026 | |
| 2 |  | Free | 4.9★ (409K) | Yes | No | Oct 2026 | |
| 3 |  | Free | 4.7★ (61K) | No | No | Oct 2026 | |
| 4 |  | Free | 2.0★ (1) | No | No | May 2026 | |
| 5 |  | Free | — | No | No | Jul 2026 | |
| 6 |  | Free | — | No | Yes | May 2026 | |
| 7 |  | Free | 3.0★ (1) | No | No | May 2026 | |
| 8 |  | Free | — | No | Yes | Jun 2026 |
This app calculates cutting parameters for drills, taps, and endmills. It also determines proper tap drill sizes based on desired thread percentage and provides decimal equivalents for various drill sizes.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
