Comparison

Intermittent Fasting Tracker vs CalGPT

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

Head to head
About

Intermittent Fasting Tracker

This app offers a straightforward and private way to track intermittent fasting. It supports iPhone and Apple Watch, providing essential features like widgets, notifications, and progress charts without any advertisements. Ideal for both beginners and experienced fasters, it focuses on a simple user interface to support health and wellness goals.

Highlights
  • Interactive Widgets
  • Notifications
  • Streaks & Badges
  • Charts & Trends
  • Fasting Zones
  • iCloud Sync
  • Dark Mode
Features
Read full description

Track fasting periods with Fasty. No account or sign-up required. Start and stop a fasting timer, set a goal, and review your recorded fasts. Edit entries to correct start and end times and keep a record of your fasting history. Features - Fasting timer: see elapsed time and the time remaining until your chosen goal. - Widgets and Live Activities: check your timer from your Home Screen, Lock Screen, and Dynamic Island on supported devices. - Apple Watch: start and finish fasts, change your goal, and check your current fasting status from your wrist, included for free. - Fasting history: add, edit, and review your recorded fasts. - Charts and trends: explore fasting durations, totals, and averages over time. - Notifications: choose reminders and alerts for your timer and eating window. - Siri and Shortcuts: start and finish fasts and check your current fasting status. - CSV import and export: import existing records or export your data for use outside the app. - Dark Mode: use a light or dark appearance to suit your preference. - Streaks and badges: view summaries and milestones based on your recorded fasts. Additional paid features are available through one-time purchases and auto-renewable subscriptions. Available options, included features, and prices are shown in the app before purchase. Subscriptions renew automatically unless canceled. You can manage or cancel them in your App Store account settings. Health information Fasty is a utility for people who want to track their fasting. It does not recommend fasting or a specific fasting plan and does not provide medical advice. Consult a doctor, registered dietitian, or another qualified healthcare professional about whether and how to fast. Privacy Policy: https://fastyfasting.com/#privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CalGPT

This AI-powered app simplifies calorie tracking by estimating nutritional information from photos or text descriptions. It offers personalized weight loss advice, weekly calorie balancing, and manual adjustments for ultimate control over your diet.

Highlights
  • AI calorie estimation from photos
  • Calorie calculation from text descriptions
  • Weekly calorie balance tracking
  • Personalized weight loss advice
  • Manual food and exercise adjustments
  • Extensive workout database
Features
Read full description

CalGPT: The Game-Changer for Weight Loss Are you tired of complicated calorie-tracking apps that make your weight loss journey even harder? CalGPT is here to simplify everything. Our AI agent accurately estimates calories from a single photo or a quick description—no more tedious manual logging! Effortless Calorie Tracking - Snap a photo of your meal, and CalGPT’s custom-trained AI instantly calculates calories, protein, fat, and carbs. It even recognizes multiple foods in one image. - Forgot to log your meal? Just type what you ate, and CalGPT will compute the calories from your description. No photo? No problem! Weekly Balance & Personalized Advice - Redistribute extra calories across the week while maintaining an overall balance. - Track your weight daily, and CalGPT will tailor weight loss advice to your unique profile, without requiring endless personal details. Manual Adjustments for Ultimate Control - Easily edit food portions and exercise durations if our AI estimates differ from reality. - Use our extensive workout database to add or adjust exercise calories based on your weight and age. Upcoming Features - Enhanced Exercise Functionality: Smart exercise timing and automatic calorie burn estimates for running, cycling, and walking. - Ingredient-Based Recipe Recommendations: CalGPT will recognize ingredients you already have and suggest healthy, low-calorie recipes tailored to your pantry. Why CalGPT? - AI-Powered: Instant, accurate calorie estimates. - Flexible: Photo or text input, plus weekly balance tracking. - Personalized: Real-time feedback on your food choices. - Future-Proof: Exciting updates like smart exercise timing and recipe suggestions are on the way! Join me on this journey toward a healthier, happier you. Download CalGPT now and take control of your weight loss today! By using this app, you agree to Apple's Standard License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Intermittent Fasting Tracker4 screens
CalGPT3 screens

Verdict

The call

The clearest difference is ratings volume: Intermittent Fasting Tracker at 52K against CalGPT's 2. CalGPT's advantage is iOS requirement (15.1 vs 17.0). 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. Intermittent Fasting Tracker sells 17 in-app purchases, starting at $0.99 per month and CalGPT sells 5 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 — 4.9 for Intermittent Fasting Tracker against 5.0 for CalGPT. That said, the two scores are not equally well evidenced: Intermittent Fasting Tracker has 52K ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 97% of Intermittent Fasting Tracker's written reviews are positive against 100% of CalGPT's.

UpkeepUpdate frequency

Intermittent Fasting Tracker ships an update every 10 days, CalGPT every 9 days. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Intermittent Fasting Tracker versus CalGPT: the parameters behind the verdict, then further details
ParameterIntermittent Fasting TrackerCalGPT
PriceFreeFree
Rating4.9 (52K ratings)5.0 (2 ratings) — better
Positive reviews96.9% of reviews100.0% of reviews — better
Number of ratings52K — better2
Update frequencyEvery 10 daysEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size111 MB34 MB
Age rating12+4+
DeveloperKai OelfkeYong Li

Customer experience

Intermittent Fasting Tracker

All ratings51,777 ratings
Positive97.8%
Neutral1.5%
Negative0.7%
Written reviews2,924 reviews
Positive96.9%
Neutral1.6%
Negative1.5%

CalGPT

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Intermittent Fasting Tracker

Reported bugs

2 issues
  • Overlapping fasting/eating windows reported
  • Inconsistencies in fasting time calculations

Requested features

4 requests
  • Ability to schedule and set reminders for fasts
  • Option to manually log ketosis levels
  • Export or share fasting data
  • More detailed fasting stage information

CalGPT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

17 purchases

Intermittent Fasting Tracker

Subscriptions9
  • Fasty Monthly Donation$0.991 Month
  • Fasty Basic Monthly$0.991 Month
  • Fasty Monthly Donation$1.991 Month
Show 6 more
  • Fasty Basic Monthly$1.991 Month
  • Fasty Monthly Donation$2.991 Month
  • Fasty Basic Yearly$4.991 Year
  • Fasty Basic Yearly$6.691 Year
  • Fasty Pro Monthly2 variants$6.991 Month
  • Fasty Pro Yearly2 variants$19.991 Year
One-time8
  • One Time Donation$4.99
  • Fasty Basic One Time$9.99
  • One Time Donation$9.99
Show 5 more
  • One Time Donation$14.99
  • One Time Donation$24.99
  • One Time Donation$34.99
  • Fasty Pro One Time2 variants$49.99
  • One Time Donation$49.99
5 purchases

CalGPT

Subscriptions4
  • Premium Monthly$4.991 Month
  • Super Angel Semi-Annual$7.996 Months
  • Angel Annual Subscription$12.991 Year
Show 1 more
  • Premium Yearly$19.991 Year
One-time1
  • Lifetime Membership – CalGPT$19.99

Questions

Is Intermittent Fasting Tracker free?
Intermittent Fasting Tracker is free to download, with in-app purchases available.
Is CalGPT free?
CalGPT is free to download, with in-app purchases available.
Which has better reviews, Intermittent Fasting Tracker or CalGPT?
CalGPT is rated higher. Intermittent Fasting Tracker averages 4.9 out of 5 from 52K ratings, while CalGPT averages 5.0 from 2 ratings.
Do Intermittent Fasting Tracker or CalGPT have ads?
Neither Intermittent Fasting Tracker nor CalGPT shows ads.
Which is updated more often, Intermittent Fasting Tracker or CalGPT?
Intermittent Fasting Tracker ships an update every 10 days, and CalGPT every 9 days. Most recently, Intermittent Fasting Tracker was updated on October 17, 2026 and CalGPT on October 10, 2026.

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