249+ iOS apps curated and reviewed
Every iPhone needs a few good beltmatic calculator apps. We benchmark 249+ 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 | 4.4★ (46) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | 4.7★ (61K) | No | No | Nov 2026 | |
| 3 |  | Free | — | Yes | Yes | Jul 2026 | |
| 4 |  | Free | 5.0★ (3) | No | No | Nov 2026 | |
| 5 |  | Free | — | No | Yes | May 2026 | |
| 6 |  | Free | 4.7★ (98K) | No | No | Nov 2026 | |
| 7 |  | Free | 4.6★ (194) | Yes | No | Oct 2026 | |
| 8 |  | Free | 2.5★ (2) | No | No | May 2026 |
This app helps you design production lines for a factory simulation game. It calculates the machines, extractors, and belts needed to achieve a desired output, with options for different time units and upgrade levels. Your factory progress is automatically saved for easy resumption.
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.
