243+ iOS apps curated and reviewed
The best celsius fahrenheit apps on iPhone average 4.4★ across 243+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (1.8K) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | — | Yes | No | Jun 2026 | |
| 3 |  | $0.99 | 5.0★ (1) | No | No | Nov 2026 | |
| 4 |  | Free | 4.7★ (130) | Yes | No | Oct 2026 | |
| 5 |  | Free | 4.5★ (205) | No | No | Nov 2026 | |
| 6 |  | Free | 4.8★ (6.3K) | No | Yes | Oct 2026 | |
| 7 |  | Free | 2.0★ (1) | No | No | Oct 2026 | |
| 8 |  | Free | 2.5★ (2) | No | No | May 2026 |
Easily convert temperatures between Fahrenheit and Celsius. Access current, historical, and forecasted weather data for any city in both units simultaneously.
Understand unfamiliar temperature scales with a glance. This app displays local weather in both Celsius and Fahrenheit simultaneously on your Home Screen and Lock Screen, eliminating the need for manual conversion. It also provides a 5-day forecast in both units, with customizable widgets.
