250+ iOS apps curated and reviewed
Out of 250+ circadian rhythm light meter apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (2) | No | Yes | Sep 2026 | |
| 2 |  | Free | 4.9★ (264) | No | Yes | Aug 2026 | |
| 3 |  | Free | 5.0★ (1) | No | No | Jul 2026 | |
| 4 |  | Free | 4.4★ (7) | No | Yes | Aug 2026 | |
| 5 |  | Free | 4.6★ (664) | No | Yes | Sep 2026 | |
| 6 |  | Free | — | No | No | Jun 2026 | |
| 7 |  | Free | 4.8★ (4) | Yes | No | Sep 2026 | |
| 8 |  | Free | — | Yes | Yes | Jul 2026 |
Measure the melanopic content of your light environment to support your body's natural sleep-wake cycle. Get actionable recommendations to improve sleep quality and daytime alertness by understanding how different light sources affect your circadian rhythm.
Optimize your health by tracking sunlight exposure, UV index, and vitamin D synthesis. Log sun sessions, monitor light levels, and receive personalized guidance based on your skin type, weather, and location. Enhance well-being and boost mood by syncing with natural light cycles.
Optimize your light exposure and sleep schedule for better circadian health. This tool provides personalized intervals to help you maintain a regular sleep-wake cycle and manage light exposure, crucial for overall well-being.
