--- title: "Vitamin D Sun Tracker - Bask - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Vitamin D is the easiest deficiency to fix, but the hardest to track. Bask estimates the Vitamin D you get from sun exposure and supplements, so you can stop guessing and start hitting your goal. Bas" --- # Vitamin D Sun Tracker - Bask — United States > UV Index & Exposure Timer ![Vitamin D Sun Tracker - Bask App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/c2/ef/22/c2ef2288-2c01-d572-e92f-c69ba7ed84be/bask-icon-main-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png) **Developer:** [Greycloud](https://apptail.io/developer/greycloud-txMm) **Category:** Health Fitness **Rating:** 4.7/5 (20 ratings) **Price:** Free **Bundle ID:** io.bask **Store:** Apple App Store **Country:** United States **Version:** 2.6 (released 2026-07-09) **Original Release:** 2026-02-06 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6758405235) **AppTail Page:** [https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/united-states](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/united-states) ## Vitamin D Sun Tracker - Bask Description Vitamin D is the easiest deficiency to fix, but the hardest to track. Bask estimates the Vitamin D you get from sun exposure and supplements, so you can stop guessing and start hitting your goal. Bask is a sun tracker and sun timer that reads the sky, live UV Index, weather, your skin, and what you're wearing to tell you the best time to step outside and exactly how long to stay. SUN SESSIONS + SUN SAFETY - Real-time Vitamin D estimates from our live UV Index, UV tracker, weather, and our sun tracker algorithm - Built-in sun timer with time-to-sunburn guidance so you never overdo it - Time-to-sunburn timer can assist you during your tanning sessions. - Live Activities keep your session on the Lock Screen (iOS 16.1+) FIND YOUR BEST SUN WINDOWS - 48-hour UV forecast of your optimal exposure times with our sun tracker - Get alerts right before your best Vitamin D window opens SUPPLEMENTS + COFACTORS - Quick-log common vitamin D doses in a tap with our vitamin tracker - Track magnesium & vitamin K2 with bite-size education cards HISTORY, STREAKS & INSIGHTS - A clean timeline of every sun exposure session and supplementation. - Track Vitamin D labs to see the impact of your sun exposure and supplement habits. - 7 / 30 / 90-day trends to watch your Vitamin D levels climb PRIVATE BY DESIGN - Your data stays on your device - Optional Apple Health integration - Optional opt-in leaderboard Bask is for educational and wellness tracking only and does not provide medical advice. ## Vitamin D Sun Tracker - Bask Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/bd/32/2b/bd322b39-6950-4797-9652-a4d896c57773/Bask-1.png/1260x2736.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9e/d2/1f/9ed21f45-89cf-8088-380d-7b527e85a8e6/Bask-2.png/1260x2736.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0f/da/35/0fda353b-33de-bbfa-e017-17a5b59e674c/Bask-3.png/1260x2736.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6f/fb/da/6ffbdaee-0f6f-f795-7337-3cdc521f950b/Bask-4.png/1260x2736.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9e/5d/6f/9e5d6f05-7164-e9dc-334d-f3908f5d8a1d/Bask-5.png/1260x2736.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3e/da/84/3eda8454-76a2-e285-2c46-2dfa58140b56/Bask-6.png/1260x2736.png) ## Vitamin D Sun Tracker - Bask Rating Breakdown in United States - 5 stars: 15 (75%) - 4 stars: 3 (15%) - 3 stars: 2 (10%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Vitamin D Sun Tracker - Bask Reviews in United States ### ***** "New essential app" I recently did blood work and discovered I had low vitamin d. This app has helped me improve my levels by making it easy to know when to go outside. I use it daily. -- Jackieta, 2026-04-18 [View all Vitamin D Sun Tracker - Bask reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Vitamin D Sun Tracker - Bask In-App Purchases | Item | Price | |------|-------| | Yearly | $24.99 | | Monthly | $4.99 | ## Vitamin D Sun Tracker - Bask Available In - [United States](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/united-states) - [Australia](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/australia) - [Canada](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/canada) - [South Africa](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/south-africa) - [Brunei](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/brunei) - [Belize](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/belize) - [Chile](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/chile) - [Cyprus](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/cyprus) - [Germany](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/germany) - [Denmark](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/denmark) - [Dominican Republic](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/dominican-republic) - [Estonia](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/estonia) - [United Kingdom](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/united-kingdom) - [India](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/india) - [Angola](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/angola) - [Cayman Islands](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/cayman-islands) - [Luxembourg](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/luxembourg) - [Latvia](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/latvia) - [North Macedonia](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/north-macedonia) - [Mali](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/mali) - [Macao SAR China](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/macau) - [Malta](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/malta) - [Namibia](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/namibia) - [Nigeria](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/nigeria) - [Oman](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/oman) - [Paraguay](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/paraguay) - [Senegal](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/senegal) - [Uganda](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/uganda) - [Vietnam](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/vietnam) - [Jamaica](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/jamaica) - [Bulgaria](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/bulgaria) - [Bahrain](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/bahrain) - [Bermuda](https://apptail.io/app/vitamin-d-sun-tracker-bask-PRty/bermuda) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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