Comparison

Fasting Tracker vs Atomic Fast

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

Head to head
About

Fasting Tracker

This app helps you track intermittent fasting with a simple, ad-free timer. It offers core features for free, with optional Pro upgrades for advanced tracking, widgets, and Apple Watch integration. Your data is kept private with no account required.

Highlights
  • Intermittent fasting timer
  • Water tracking with reminders
  • Weight tracking
  • No account required
  • Ad-free experience
  • Advanced protocols (Pro)
  • Home screen widgets (Pro)
Features
Read full description

Start your intermittent fasting journey with Easy Fast — the simple, ad-free fasting app and habit tracker designed for weight loss and lasting results. Trusted by 2.4M+ fasters and rated 4.9 stars on the App Store. Hi, I'm Sam. I'm a solo developer and a long-time faster. I created a fasting tracker that is simple, powerful, and private. No invasive ads, no required accounts, and no data mining. Just a tool to help you reach your weight loss and health goals. CORE FEATURES (Free forever) Easy Fast is one of the most generous free fasting apps on the store: • Fasting Timer: Track popular daily fasts like 16:8 and 18:6. • Flexi Plan: Open-ended fasting with no time cap. You decide when to stop. • Fasting Stages: Track your body status from Ketosis to Autophagy. • Water Tracker: Log your hydration with smart reminders. • Weight Tracking: Monitor your weight loss progress over time. • Edit History: Forgot to hit stop? Easily adjust start and end times. • Zero Ads & No Accounts: Just download and focus on your health, not closing pop-ups. GO PRO (Unlock advanced tools & support a solo dev) • Advanced Plans: Unlock OMAD (One Meal A Day), 20:4, week-by-week programs, and extended fasts — matched to your weight loss goal. • Expert Stage Insights: Practical answers at every stage — how long hunger waves last, which drinks break a fast, and whether one bite ruins it. • Widgets, Live Activities & Apple Watch: Track your fast on the Home Screen, Lock Screen, Dynamic Island, and right from your wrist. • Complete Tracking: Log body measurements, electrolytes, ketones, and glucose. • Cloud Sync & Backup: Keep your fasting history secure across all your devices. WHY CHOOSE EASY FAST? • Battery-Friendly: A true black Dark Mode that saves battery. • Privacy-First: Your data is never sold. Cloud Sync is entirely optional. • Community Trusted: Join millions of fasters using the most respectful app on the store. Whether you are a beginner starting 16:8 to lose weight or a veteran looking for a clean, ad-free timer, Easy Fast is the tool for you. Download the ultimate intermittent fasting tracker today. Easy Fast is an intermittent fasting tool and should not replace professional medical advice. Terms of Use: https://easyfastapp.com/terms Privacy Policy: https://easyfastapp.com/privacy

About

Atomic Fast

This app combines intermittent fasting with AI-powered calorie and macro tracking. It analyzes your eating patterns, hydration, sleep, and activity to provide metabolic insights and a daily readiness score. Seamlessly integrates with Apple Health for a holistic view of your well-being.

Highlights
  • AI calorie and macro estimation from photos
  • Intermittent fasting timer with metabolic phases
  • Break-fast meal scoring and suggestions
  • Connects meals and fasts for holistic insights
  • Daily readiness score based on health signals
  • Apple Health and Apple Watch integration
Features
Read full description

Track your fasts through real metabolic phases, then snap a photo of your meal to log calories and macros in seconds — and see exactly how the two connect. Most fasting apps track time; most calorie apps track food. Atomic Fast connects both. Atomic Fast combines intermittent fasting, AI calorie tracking, macro counting, Apple Health insights, and hydration tracking in one app — made for people who already fast and want more than just a basic timer or food diary. FASTING TIMER WITH METABOLIC PHASES Track your fasts with a real-time fasting timer and estimated metabolic phase guidance. Follow your progress through clear visual stages, from digestion and transition to glycogen depletion, fat burning, ketosis, deeper fasting, and autophagy. Choose popular fasting schedules like 16:8, 18:6, 20:4, OMAD, or create your own custom plan. Adjust your goals anytime, and get fasting milestone notifications without the pressure. AI CALORIE TRACKING IN SECONDS Take a photo of your plate. Atomic Fast typically identifies foods in under 5 seconds and estimates calories, macros, and nutrients — like a smart AI calorie counter and macro tracker that actually understands what you ate. You can also log meals by: - Describing what you ate with text or voice - Scanning nutrition labels - Scanning barcodes - Searching the USDA food database - Adding meals manually when needed No more typing one ingredient at a time. BREAK-FAST SCORE The first meal after a fast matters. Atomic Fast scores your break-fast meal from 0 to 100, with practical suggestions on protein, fiber, carbs, and balance for a smoother transition back into eating. MEALS AND FASTS THAT WORK TOGETHER Most fasting apps track time. Most calorie trackers and food diaries track food. Atomic Fast connects both. See how your last meal affects your next fast, how your fasting consistency affects your eating patterns, and how nutrition timing may connect with sleep, recovery, and daily energy. METABOLIC INSIGHTS Atomic Fast helps you spot patterns across fasting, meals, hydration, sleep, heart rate, HRV, activity, and more. Interactive charts and daily insights help you understand habits like calorie trends, macro balance, fasting consistency, and how nutrition timing may connect with sleep, recovery, and energy levels. Daily insight examples: - "Ending eating by 7 PM dropped your sleeping heart rate by 4 bpm last week" - "On high-recovery days you hit your fasting goal 30% more often" Insights are calculated on your device. Your patterns stay yours. DAILY READINESS SCORE Wake up to a readiness score from key health signals: sleep, HRV, resting heart rate, activity, exercise, and respiratory rate. A simple guide to whether today is a good day to push your fast, stay normal, or focus on recovery. APPLE HEALTH AND APPLE WATCH Atomic Fast syncs 24 Apple Health data types: sleep, heart rate, HRV, steps, workouts, weight, respiratory rate, and more. Meals write 11 nutrients plus water back to Apple Health, keeping your nutrition data connected across your favorite health apps. HYDRATION TRACKING One-tap water logging. Smart reminders that fit naturally around your fasting routine. BUILT FOR EVERYDAY USE - Three themes including a signature Deep Purple mode - Two timer styles: Atomic Ring and Classic Ring - Smart notifications for fasting milestones, hydration, meal reminders, and weekly recaps - Awards and streaks to celebrate progress without pressure - Offline-first experience - Privacy-focused design - Apple Watch companion app ATOMIC+ The free version is the real product — fasting tracking, manual food logging, readiness score, daily insights, themes, and 7 AI meal scans per week, all free and ad-free. Atomic+ unlocks: - Unlimited AI meal scans - iCloud backup and data export Available as Atomic+ Monthly, Atomic+ Annual (with 7-day free trial), or Atomic+ Lifetime. Terms of Use: https://atomicfast.com/terms Privacy Policy: https://atomicfast.com/privacy

Screenshots

Fasting Tracker4 screens
Atomic Fast4 screens

Verdict

The call

The clearest difference is ratings volume: Fasting Tracker at 9.1K against Atomic Fast's 30. Fasting Tracker also leads on iOS requirement (15 vs 18.0). On price, rating, review sentiment and update cadence there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fasting Tracker sells 17 in-app purchases, starting at $0.99 per month and Atomic Fast sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Fasting Tracker against 5.0 for Atomic Fast. That said, the two scores are not equally well evidenced: Fasting Tracker has 9.1K ratings behind it against 30, so its average is the more settled of the two. Written reviews are what separate them: 93% of Fasting Tracker's written reviews are positive against 96% of Atomic Fast's.

UpkeepUpdate frequency

Fasting Tracker ships an update every 3 days, Atomic Fast every 4 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Fasting Tracker versus Atomic Fast: the parameters behind the verdict, then further details
ParameterFasting TrackerAtomic Fast
PriceFreeFree
Rating5.0 (9.1K ratings)5.0 (30 ratings) — better
Positive reviews93.5% of reviews96.3% of reviews — better
Number of ratings9.1K — better30
Update frequencyEvery 3 days — betterEvery 4 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS15 — better18.0
Further details — not scored
Size75 MB22 MB
Age rating4+4+
DeveloperSamtark Pty LtdStartise

Customer experience

Fasting Tracker

All ratings9,068 ratings
Positive99.2%
Neutral0.2%
Negative0.5%
Written reviews644 reviews
Positive93.5%
Neutral1.4%
Negative5.1%

Atomic Fast

All ratings28 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews27 reviews
Positive96.3%
Neutral3.7%
Negative0.0%

Bugs and requests

Fasting Tracker

Reported bugs

2 issues
  • Inability to save measurements
  • Inconsistent widget updates

Requested features

4 requests
  • Integration with Apple Health
  • Community/social features
  • Ability to plan/schedule future fasts
  • Ketosis/fat-burning tracking

Atomic Fast

Not enough reviews yet to summarise bugs or requests.

In-app purchases

17 purchases

Fasting Tracker

Subscriptions10
  • Seedling Sponsor$0.991 Month
  • Seedling Sponsor$1.991 Month
  • Seedling Sponsor$2.991 Month
Show 7 more
  • Seedling Sponsor$3.991 Month
  • Flourish Sponsor$4.991 Month
  • Easy Fast Pro$9.991 Month
  • Monthly Tip$9.991 Month
  • Monthly Tip$14.991 Month
  • Monthly Tip$19.991 Month
  • Easy Fast Pro7 Days trial$49.991 Year
One-time7
  • Tip$1.99
  • Tip$2.99
  • Tip$3.99
Show 4 more
  • Tip$4.99
  • Tip$9.99
  • Tip$19.99
  • Tip$29.99
3 purchases

Atomic Fast

Subscriptions2
  • Atomic+ Monthly$4.991 Month
  • Atomic+ Annual7 Days trial$29.991 Year
One-time1
  • Atomic+ Lifetime$59.99

Questions

Is Fasting Tracker free?
Fasting Tracker is free to download, with in-app purchases available.
Is Atomic Fast free?
Atomic Fast is free to download, with in-app purchases available.
Which has better reviews, Fasting Tracker or Atomic Fast?
Atomic Fast is rated higher. Fasting Tracker averages 5.0 out of 5 from 9.1K ratings, while Atomic Fast averages 5.0 from 30 ratings.
Do Fasting Tracker or Atomic Fast have ads?
Neither Fasting Tracker nor Atomic Fast shows ads.
Which is updated more often, Fasting Tracker or Atomic Fast?
Fasting Tracker ships an update every 3 days, and Atomic Fast every 4 days. Most recently, Fasting Tracker was updated on November 1, 2026 and Atomic Fast on October 28, 2026.

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