228+ iOS apps curated and reviewed
SmarTest Vitamin D is the household name in smartest vitamin d, but it's far from the only option. We track 228+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | No | Aug 2026 | |
| 2 |  | Free | 4.0★ (1.8K) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | 4.8★ (11K) | No | Yes | Sep 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | Free | 4.8★ (143) | No | Yes | Sep 2026 | |
| 6 |  | Free | 4.6★ (26) | No | No | Sep 2026 | |
| 7 |  | Free | 4.8★ (52K) | No | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (40K) | No | No | Sep 2026 |
This app, paired with a home testing kit, allows you to quickly measure your vitamin D levels using your smartphone camera. It provides a step-by-step guide for a painless blood sample collection and immediate result display, helping you manage your vitamin D intake.
Track and manage your Vitamin D intake and sun exposure. This app calculates optimal sun exposure times based on your profile and location, and integrates with Apple Health for seamless data exchange. It also provides forecasts and notifications for vitamin D generation opportunities.
This app provides real-time UV index updates and forecasts to help you plan outdoor activities safely. It offers personalized sun safety guidance, sunburn risk calculations based on skin type, and smart reminders to protect your skin from sun damage. Track your sun exposure and Vitamin D levels while achieving your tanning goals safely.
