Best apps like Sun Day Tracker

10+ similar apps compared and reviewed

4.5 avg rating
10 free apps
Updated August 2026
Sun Day Tracker
Sun Day Tracker
permissionless tech, llc

Whether you want more options like Sun Day Tracker or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

simply. nutrition tips

simply. nutrition tips by simply advisory LLC

that help you get healthy.
💪 Health & Fitness
5.0(17 ratings)
FreeIn-App Purchases
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Get daily nutrition tips from certified nutritionists with a subscription to this app, and start your journey to a healthier lifestyle. With features like customizable notifications, saved tips, and a tip tracker, you can easily incorporate healthy habits into your daily life.

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Top Alternatives to Sun Day Tracker

SunSeek: Sunlight & Vitamin D#1

SunSeek: Sunlight & Vitamin D by The Wellness Company, Inc.

Sun Exposure & Vitamin D
Editor's Choice
💪 Health & Fitness
4.8😊(133 ratings)
FreeIn-App Purchases
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Optimize your circadian rhythm and vitamin D production with personalized sunlight exposure guidance. Track real-time lux levels, receive tailored outdoor time recommendations, and use the sun compass to maximize your daily light intake for improved sleep, mood, and overall well-being.

What We Love

  • 🚀 Excellent app design
  • 👍 Motivates users to get outside
  • 💡 Personalized recommendations
  • 🚀 Clean and intuitive interface

Room to Improve

  • 💰 Overpriced for the current feature set
  • 🔍 Lack of transparency around pricing
  • 🔍 Limited data tracking capabilities
Sunned: Vitamin D & Sun Timer#2

Sunned: Vitamin D & Sun Timer by Tindrels LLC

Vitamin D Tracker & UV Alert
Strong Contender
💪 Health & Fitness
3.7(3 ratings)
Free
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Monitor your vitamin D production from sun exposure and receive alerts to prevent sunburn. This app estimates your vitamin D levels and tracks supplementation, providing daily sunrise and sunset notifications.

Don't Die - Bryan Johnson#3

Don't Die - Bryan Johnson by Blueprint Bryan Johnson

Let's not die, together.
Worth Considering
💪 Health & Fitness
4.8😊(635 ratings)
Free
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This app fosters a supportive community for sharing health journeys and achievements. It helps users improve their longevity score through habit mastery, local event connections, and friendly competition. Integrate wearables for automatic score calculation and progress tracking.

What We Love

  • 👍 Amazing community
  • 🚀 Great app interface
  • 💡 Interesting concept and mission
  • 👍 Engaging social experience

Room to Improve

  • 🐛 Technical issues (glitches, freezing, crashes)
  • 🐛 Poor UX for certain features (e.g., replying to comments)
  • 🔒 Privacy concerns around data sharing

More apps like Sun Day Tracker

4
Coherence - Breathwork
Coherence - Breathwork
Coherence - Breathwork
Master Your Breath & Mind
Free

Master your nervous system through guided breathwork. Access over 500 breathing patterns to shift your state, from calm and focus to energy and sleep. Connect with a global community in live sessions and create custom routines.

Nervous system interface via breathShift states: calm, focus, energy, sleepDaily global live breathing sessions
💪 Health & Fitness
(498)
subscription
5
Rays: Auto Vitamin D Tracking
Rays: Auto Vitamin D Tracking
Rays: Auto Vitamin D Tracking
Auto sun exposure tracking
Free

Automatically tracks your body's vitamin D synthesis from sun exposure. Get personalized recommendations for optimal timing and duration to maintain energy, mood, and skin health year-round without manual logging.

Automatic vitamin D synthesis trackingPersonalized health intelligenceSmart sun exposure recommendations
💪 Health & Fitness
(7)
free with in-app purchases
6
MyCircadianApp
MyCircadianApp
MyCircadianApp
Track sunlight & wellness
Free

Optimize your health by tracking sunlight exposure, UV index, and vitamin D synthesis. Log sun sessions, monitor light levels, and receive personalized guidance based on your skin type, weather, and location. Enhance well-being and boost mood by syncing with natural light cycles.

Sunlight exposure trackingUV index monitoringVitamin D synthesis tracking
💪 Health & Fitness
(264)
free with in-app purchases
7
Perform: Fitness, Health, HRV
Perform: Fitness, Health, HRV
Perform: Fitness, Health, HRV
Workout, Macros, Sleep Tracker
Free

This app analyzes your health data from wearables to provide key readiness, strain, and sleep scores. It offers actionable insights to help you train smarter and optimize your performance without additional hardware.

Recovery Score from HRV, HR, respiration, and sleepStrain Score for cardiovascular loadSleep Score with REM, Deep, and Core stages
💪 Health & Fitness
(29)
subscription
8
Water Tracker: AquaBee
Water Tracker: AquaBee
Water Tracker: AquaBee
Hydration goals & drink log
Free

Effortlessly monitor your daily water intake and achieve hydration goals. This app personalizes your target based on your details and local weather, tracking various beverages and visualizing your progress with beautiful charts. It offers a simple, intuitive interface for making hydration a consistent habit.

Personalized daily water goal calculationAutomatic tracking of water content in various drinksIntuitive and fun interface
💪 Health & Fitness
(15)
free with in-app purchases
9
Runbuds
Runbuds
Runbuds
Run with your friends
Free

This app allows you to run with friends in real-time, seeing each other's avatars on a virtual track. It includes a run tracker with lock screen support, group relay challenges, and detailed performance statistics with shareable visualizations.

Real-time avatar trackingLive lock screen activitiesGroup relay challenges
💪 Health & Fitness
(64)
free
10
SunDay: Vitamin D & UV Tracker
SunDay: Vitamin D & UV Tracker
SunDay: Vitamin D & UV Tracker
Skin health and protection
Free

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.

Vitamin D intake trackingSunburn risk timerSupplement calculator
💪 Health & Fitness
(33)
free