Comparison

Fasting Tracker vs SunSync

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Fasting Tracker

Features
Read full description

Simple. Clean. Effective. Take control of your health with the most intuitive intermittent fasting tracker on the App Store. Whether you are a beginner starting your first 12:12 or a "Warrior" mastering OMAD, Fastly provides the tools you need to stay consistent and reach your goals. FEATURES DESIGNED FOR SUCCESS: Smart Fasting Timer: One-tap to start your fast with a beautiful, dark-mode interface. Personalized Plans: Choose from popular protocols including 12:12 (Beginner), 14:10 (Maintenance), 16:8 (Most Popular), 18:6 (Advanced), and 20:4 (Warrior Diet). Visual Progress: See your journey through detailed History and Calendar views. Track your success rate and "Broken" fasts to stay accountable. Motivational Statistics: Celebrate your milestones with streak tracking and "Keep Going!" alerts. Health Metrics: Monitor your weight, height, and BMI in one place to see the real-world impact of your habits. Privacy & Integration: Secure your data with Biometric Lock (FaceID/TouchID) and sync your fasting data seamlessly with Apple Health. WHY CHOOSE FAST TRACKER? No Clutter: Focus purely on your fasting windows without distracting ads or complex meal logging. Battery Efficient: Native Dark Mode design saves your screen and your battery. Premium Insights: Unlock advanced analytics to dive deeper into your body composition trends. SUBSCRIPTION DETAILS: Fastly offers auto-renewable subscriptions for premium features: * Subscription Name: Fastly Premium * Duration: Monthly and Yearly plans * Price: Pricing varies by region and is displayed in the app before purchase * Payment will be charged to your Apple ID account at confirmation of purchase * Subscription automatically renews unless canceled at least 24 hours before the end of the current period * You can manage and cancel subscriptions in your App Store account settings Privacy Policy: https://fasttrackcore.web.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SunSync

Features
Read full description

Always tired, waking groggy, or struggling to fall asleep? The cause might be simpler than you think โ€” your morning light routine. SunSync syncs your day to the sun. Track sunlight exposure, estimate your vitamin D intake, and get personalized circadian rhythm guidance โ€” all based on your real location and habits. Your body clock controls your sleep, energy, mood, and focus. SunSync helps you work with it โ€” not against it. With SunSync you can: - Track sunlight exposure and daily light habits โ€” know when you've hit your target - Estimate vitamin D from sun exposure based on your skin type and location - Log supplements and monitor your total daily intake - Follow personalized circadian recommendations for your schedule - Discover your best sunlight windows โ€” and when to avoid the UV index - Build routines to improve sleep and melatonin production naturally - Set smart reminders for sunrise, sunset, and wind-down time - Add a home screen widget โ€” see your vitamin D window at a glance, without opening the app - View history and long-term trends to see your progress Built for the biohacking community โ€” and anyone who just wants to feel better. Whether you're optimizing for performance or simply tired of being tired, SunSync gives you the sunlight data your wellness routine has been missing. Vitamin D tracking, body clock alignment, supplement logging, and a home screen widget showing your vitamin D window โ€” in one app. Disclaimer: SunSync provides estimates and general wellness guidance. It is not a medical device and does not replace professional medical advice. Terms: https://martarodriguezm.github.io/SunSyncLegal/terms.html Privacy Policy: https://martarodriguezm.github.io/SunSyncLegal/privacy.html

Screenshots

Fasting Tracker4 screens
SunSync4 screens

Verdict

The call

Fasting Tracker and SunSync are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Fasting Tracker sells 2 in-app purchases, starting at $4.99 per month and SunSync sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Fasting Tracker versus SunSync: the parameters behind the verdict, then further details
ParameterFasting TrackerSunSync
PriceFreeFree
Update frequencyโ€”Every 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS18.017.6 โ€” better
Further details โ€” not scored
Size15 MB22 MB
Age rating12+4+
DeveloperLahiru ChathurangaMarta Rodriguez

In-app purchases

2 purchases

Fasting Tracker

Subscriptions2
  • Monthly Plan$4.991 Month
  • Annual Plan3 Days trial$29.991 Year
2 purchases

SunSync

Subscriptions1
  • Year3 Days trial$1.991 Year
One-time1
  • Lifetime$2.99

Questions

Is Fasting Tracker free?
Fasting Tracker is free to download, with in-app purchases available.
Is SunSync free?
SunSync is free to download, with in-app purchases available.
Do Fasting Tracker or SunSync have ads?
Neither Fasting Tracker nor SunSync shows ads.

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