Sunned: Vitamin D & Sun Timer

Tindrels LLC Health & Fitness iPhoneiPadiPod touch

Sunned: Vitamin D & Sun Timer is a free Health & Fitness app for iPhone and iPad by Tindrels LLC. Rated 3.7/5 from 3 ratings. Requires iOS 26.0.

Rating: 3.7; 3 ratings
Price: Free; on the App Store
Size: 4 MB; Age 4+
Updated: Sep 17; 2026 · v2.0.1

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Screenshots

About Sunned: Vitamin D & Sun Timer

Get the optimal amount of Vitamin D from daily sunlight without risking sunburn or skin damage: - Personalized UV & Burn Clock: Real-time safe exposure calculations based on your skin type, time, UV index, and location. - Serum Level Trajectory: Track daily intake from sunlight and supplementation toward your target serum blood level. - Optimal Sun Window: Smart notifications for sunrise and sunset, circadian alignment, and when UV is high enough for synthesized D3.

What’s new

Version 2.0.1 · Updated September 17, 2026

- Updated for iOS 27.

App privacy

The developer, Tindrels LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

Sunned: Vitamin D & Sun Timer is a free Health & Fitness app for iPhone, iPad and iPod touch, developed by Tindrels LLC. It is rated 3.7 out of 5 from 3 ratings on the App Store, requires iOS 26.0 or later and is 4 MB to download. It was first released on February 19, 2025 and last updated on September 17, 2026.

Category: Health & Fitness
Rating: 3.7 / 5 (3 ratings)
Price: Free
Version: 2.0.1
Size: 4 MB
Requires: iOS 26.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: February 19, 2025
Last updated: September 17, 2026
Developer: Tindrels LLC

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Listing score

Our ASO checklist, run on this App Store listing.

Grade C

Average rating (3.7): Low. Many people skip apps under 4 stars.
Number of ratings (3): More ratings make the average more convincing.
Languages (1): Only one language. Localizing the listing for your biggest markets can bring more installs.

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Alternatives to Sunned: Vitamin D & Sun Timer

Looking for apps like Sunned: Vitamin D & Sun Timer? Here are 6 similar apps on the App Store. The highest rated is Hello Sun - Vitamin D Tracker (5.0/5), and all 6 are free to download.

Sunned: Vitamin D & Sun Timer vs. alternatives
App	Rating	Price	Last updated	Compare
Sunned: Vitamin D & Sun Timer	3.7 / 5 (3 ratings)	Free	September 17, 2026
Hello Sun - Vitamin D Tracker	5.0 / 5 (1)	Free	Jan 27, 2026	Compare
SunDose!	5.0 / 5 (4)	Free	May 28, 2025	Compare
Sunny Buddy	5.0 / 5 (1)	Free	Nov 26, 2025	Compare
Sunlight & UV: Get Some Sun	5.0 / 5 (8)	Free	Aug 4, 2026	Compare
Vitamin D Sun Tracker - Bask	4.7 / 5 (24)	Free	Jul 9, 2026	Compare
Steady: Shift Sleep	5.0 / 5 (1)	Free	Oct 10, 2026	Compare

Compare Sunned: Vitamin D & Sun Timer with the top alternatives: ratings, updates, ASO score and keyword gaps →