Features & Capabilities

SunAlly is your intelligent sunlight companion, helping you fully embrace the health and vitality that sunlight brings while maintaining optimal wellness.

◎ How SunAlly Helps You Through intelligent monitoring and personalized recommendations, SunAlly helps you find the perfect times for outdoor activities, making it easy to get sufficient vitamin D and enhance your overall wellbeing. Beautiful data visualizations give you clear insights into your daily sunlight intake, while smart reminders ensure you never miss the perfect outdoor moment.

◎ Core Features

  • Optimal outdoor activity time recommendations
  • Real-time UV level monitoring and protection guidance
  • Smart reminder system for UV risk prevention
  • Intelligent vitamin D synthesis estimation and trend tracking
  • Personalized health recommendations for continuous support
  • Comprehensive health data integration and cross-impact analysis
  • Rich collection of Apple Watch complications
  • HRV stress monitoring and real-time alerts

◎ Design Philosophy We believe sunlight is nature's most precious gift to humanity. SunAlly's design centers on user health, promoting the benefits of appropriate sun exposure while helping users prevent potential harm from overexposure. We strive to create a simple, practical, and user-friendly application that makes every outdoor activity more enjoyable and safer.

◎ Target Users

  • Urban dwellers pursuing a healthy lifestyle
  • Outdoor sports and fitness enthusiasts
  • Health-conscious wellness seekers
  • Anyone looking to develop regular outdoor activity habits

◎ Apple Health Integration SunAlly deeply integrates with Apple Health, recording and analyzing multiple health metrics including sunlight exposure and HRV. Paired with Apple Watch, it helps you stay informed about your body's condition and easily plan outdoor activities.

◎ Health Advisory Disclaimer The sunlight exposure duration and vitamin D synthesis estimates provided by SunAlly are for reference only. Due to individual differences and environmental variations, actual conditions may vary. This data does not constitute medical advice in any form. If you have specific concerns about outdoor activities or vitamin D supplementation, please consult a medical professional.

◎ Premium Function

  • Review historical health status
  • Weekly/monthly/yearly sunlight trend
  • Weekly/monthly/yearly Vitamin D trend
  • Extra HRV watch face cartoon character
  • Sunlight and UV analysis
  • Detailed Vitamin D supplement advice

Payment will be charged to subscriber’s iTunes account at the confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Subscriber’s account will be charged for renewal within 24 hours prior to the end of the current period. Subscribers can manage their subscriptions by going to their account settings on the App Store.

For technical assistance, please contact our team: Privacy Policy: https://dev.freenotetech.com/sunally/policy/ Terms of Service: https://dev.freenotetech.com/sunally/terms/

User Growth & Download Statistics

App
By:
Free Notes (Hangzhou) Ltd
Rating:
4.00
(9)
Version:
1.23.1 Last updated: 2025-07-15
Version code:
876367483
Creation date:
2025-02-28
Compatible devices:
Size:
58.29MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-28
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Free Notes (Hangzhou) Ltd
Apple Apps Store
https://apps.apple.com/us/app/sunally/id6740318671
Website:
https://dev.freenotetech.com/

User Reviews

I’m No ability to enter Theraputic light time. I do mine from 4am to 5 am which the app considers ineffective sun exposure time for vitamin D synthesis and with no ability to enter it as Theraputic. Vitamin D tracking is useless. Also no ability for sunlight tracking from Apple Watch. HRV does not update either.
by ti*****, 2026-02-07

The app won’t measure outdoor activity and I can’t customize activity outside when it doesn’t read correctly
by sa*****, 2025-06-12

I downloaded about 10 different sun apps, and this is the best one for automatically tracking sun exposure using time in daylight on an Apple Watch. It calculates how much vitamin d you’re getting from the sun based on this metric. Right now, the only improvement I could see would be having the uv index be written to apple health when it notices that you are in the sun. Waiting for that feature, but enjoying the app.
by La*****, 2025-05-08
View all user reviews ›

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