34+ iOS apps curated and reviewed
The best r2r660cc apps on iPhone average 3.3★ across 34+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $0.99 | — | No | No | Aug 2026 | |
| 2 |  | $1.99 | 1.0★ (1) | No | No | May 2026 | |
| 3 |  | $0.99 | 1.0★ (1) | No | No | May 2026 | |
| 4 |  | $0.99 | 2.0★ (3) | No | No | May 2026 | |
| 5 |  | Free | 4.8★ (764) | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.2★ (34) | Yes | No | Aug 2026 | |
| 7 |  | $0.99 | 3.8★ (120) | No | No | Aug 2026 | |
| 8 |  | Free | 2.3★ (14) | No | No | Aug 2026 |
This calculator app features large buttons and a clear, bright display for easy input and visibility, even outdoors. It calculates equations in the order they are entered, unlike some other mobile calculators that prioritize operator precedence.
This application plays video files continuously, offering playback controls like zoom and aspect ratio adjustments. It supports external display output and file transfer via FTP when connected to Wi-Fi. Note that it does not convert video formats.
This utility app functions as a basic clock with alarm features. It allows customization of alarm sounds using iPod library tunes and includes a screen burn-in prevention mechanism by slightly shifting the clock's position.
