Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.

250+ iOS apps curated and reviewed
The best sun day tracker apps on iPhone average 3.3★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (26) | No | No | Sep 2026 | ||
| 2 | Free | 3.9★ (33) | No | No | May 2026 | ||
| 3 | Free | 4.7★ (3.7K) | No | Yes | Oct 2026 | ||
| 4 | Free | — | No | Yes | Sep 2026 | ||
| 5 | Free | 1.0★ (1) | No | No | Sep 2026 | ||
| 6 | Free | 1.0★ (1) | No | Yes | Sep 2026 | ||
| 7 | Free | — | No | Yes | Sep 2026 | ||
| 8 | Free | — | Yes | No | May 2026 |

Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.






This app helps you monitor your daily Vitamin D intake and stay safe in the sun. It features a smart timer to notify you about sunburn risks and allows you to track supplements for detailed health insights.






This app precisely predicts the sun and moon's positions for any time and location. Visualize celestial movements with augmented reality, map overlays, and detailed calendars to plan photography, events, or installations.