Comparison

Fasting Tracker App by Numify vs FastSloth

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

Head to head
About

Fasting Tracker App by Numify

This app guides users through intermittent fasting for weight loss and improved health. It offers simple tracking, personalized plans, and smart notifications to help establish healthy habits without restrictive diets.

Highlights
  • Intermittent fasting guidance
  • Weight loss without restrictive diets
  • OMAD and 16/8 timer options
  • Effortless tracking
  • Smart notifications
  • Personalized fasting plans
Features
Read full description

Experience a smarter way to reach your weight goals with Fasting Tracker App by Numify — your all-in-one intermittent fasting companion for building healthier habits, staying consistent, and making fasting fit your lifestyle. Intermittent fasting doesn't have to feel complicated. Whether you're following OMAD (One Meal a Day), the 16/8 method, or another fasting schedule, Numify helps you stay on track with simple tools, personalized guidance, and a fasting timer designed to support your daily routine.


 DISCOVER THE SCIENCE OF INTERMITTENT FASTING 
 Intermittent fasting, including 16:8 fasting, OMAD (One Meal a Day), 18:6 fasting, and 20:4 fasting, isn't just a trend—it's a scientifically backed lifestyle. By alternating between eating and fasting, your body taps into stored fat for energy, facilitating effective weight loss without the need for restrictive diets. IS INTERMITTENT FASTING RIGHT FOR YOU? Absolutely! Linked to numerous health benefits, including improved insulin sensitivity, reduced inflammation, and enhanced brain function, intermittent fasting is a holistic approach to wellness that transcends mere scale numbers. WHY CHOOSE FASTING TRACKER & TIMER? - Simplicity: No complex meal plans or calorie counting. - Effortless Weight Loss: Shed pounds without complicated diets. - Energy Boost: Enjoy increased energy levels and mental clarity. - Enhanced Brain Functions: Experience better concentration. - Accelerated Metabolism: Ignite fat burning with a faster metabolism. - Habits for a Better Life: Establish a sustainable approach to healthy living. - Adaptable Lifestyle: Compatible with your fitness routine. LONG-TERM BENEFITS - Normalize blood sugar levels by stabilizing insulin. - Natural and sustainable weight loss. - Lower the risk of heart disease and improve cardiovascular health. - Promote longevity through enhanced cellular repair mechanisms. - Diabetes prevention. - Reduce or prevent allergies and inflammations. FASTING MADE EASY WITH FASTING TRACKER & TIMER - Effortless Tracking: Log your fasting hours with a single tap. - Smart Notifications: Stay on track with reminders for the beginning and end of your fasting window. - Personalized Fasting Plans: Tailor your fasting routine to your lifestyle with flexible timer options. Download Fasting Tracker App by Numify now and unlock the key to a healthier, happier you through the simplicity of intermittent fasting. Embark on your journey today! * Success stories are based on interviews conducted from August to October 2023 with respondents who followed intermittent fasting plans for at least one month. Disclaimer: This app is neither a medical device nor does it provide medical advice. It is intended for informational and educational purposes only. Whenever you have any concerns about your health, please consult your doctor or a qualified healthcare provider. Privacy Policy: https://wellness.municorn.com/privacy?app=fasting Terms of Use: https://wellness.municorn.com/terms?app=fasting CCPA: https://wellness.municorn.com/ccpa?app=fasting U.S. State Privacy Supplement: https://wellness.municorn.com/privacy-supplement?app=fasting For any questions or inquiries, please contact us at fasting-support@municorn.com

About

FastSloth

This app helps you track intermittent fasting with customizable schedules and real-time indicators of your body's stages. It also includes hydration logging, weight tracking with visual progress charts, and smart notifications to keep you on track. All your data stays private on your device.

Highlights
  • Customizable fasting schedules
  • Real-time ketosis and autophagy indicators
  • Hydration logging and reminders
  • Weight tracking with progress charts
  • Streak tracking and milestone badges
  • Home screen widgets
  • Private, no account required
Features
Read full description

No account. No subscription. No data leaves your phone. FastSloth is a private intermittent fasting tracker with fasting insights, **calorie tracking, a personal recipe book**, hydration and weight tracking, Home Screen widgets, and **custom themes with a Theme Builder**. Start fasting in one tap. ## NEW: CALORIE TRACKER & RECIPE BOOK Track your daily calories alongside your fasting progress. Log meals and foods throughout the day, see your calorie totals at a glance, and keep everything together in one simple place. Save your favorite meals in your personal Recipe Book so you can quickly reuse recipes and keep track of what you eat. ## THEMES & THEME BUILDER Choose a built-in theme or create your own. Customize colors and appearance with the Theme Builder and make FastSloth feel like yours. ## FASTING MADE SIMPLE Start with one tap. Choose 16:8, 14:10, 18:6, 20:4, OMAD, or create a custom fasting schedule. See estimated fasting stages as you progress, including fat burning, ketosis, and autophagy. ## CALORIE TRACKING Log your meals and track your daily calorie intake. See how your nutrition fits alongside your fasting schedule, hydration, and weight progress. ## RECIPE BOOK Save and organize your favorite recipes directly in FastSloth. Keep the meals you make most often close at hand and quickly reuse them when tracking what you eat. ## HYDRATION Log water in seconds, track daily progress, and set hydration reminders. See your progress from the Home Screen with the hydration widget. ## WEIGHT & INSIGHTS Track your weight over time with simple charts that make trends easy to see. ## SMART NOTIFICATIONS * Fast start and end alerts * Fasting stage notifications * Water reminders ## STREAKS & MILESTONES Track completed fasts, build streaks, and unlock milestone badges. ## HOME SCREEN WIDGETS See your current fast, hydration progress, and streak without opening the app. ## PRIVATE BY DESIGN No account. No subscription. Your fasting history, calorie logs, recipes, weight, hydration logs, and settings stay on your device. ## FASTING PROTOCOLS * **16:8** * **14:10** * **18:6** * **20:4** * **23:1 / OMAD** * **Custom schedules** Private. Personal. Lightweight. **Download FastSloth and start fasting your way.**

Screenshots

Fasting Tracker App by Numify4 screens
FastSloth4 screens

Verdict

The call

The clearest difference is ratings volume: Fasting Tracker App by Numify at 5.9K against FastSloth's 5. Fasting Tracker App by Numify also leads on iOS requirement (17.5 vs 26.0). FastSloth's advantage is update cadence (every 6 days vs monthly) and rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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 App by Numify sells 19 in-app purchases, starting at $3.99 per 7 days and FastSloth sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

FastSloth holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Fasting Tracker App by Numify has 5.9K ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Fasting Tracker App by Numify ships an update monthly, FastSloth every 6 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Fasting Tracker App by Numify versus FastSloth: the parameters behind the verdict, then further details
ParameterFasting Tracker App by NumifyFastSloth
PriceFreeFree
Rating4.7 (5.9K ratings)5.0 (5 ratings) — better
Positive reviews60.8% of reviews—
Number of ratings5.9K — better5
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.5 — better26.0
Further details — not scored
Size158 MB9 MB
Age rating12+12+
DeveloperMunicorn LimitedDarren Paul

Customer experience

Fasting Tracker App by Numify

All ratings5,594 ratings
Positive92.5%
Neutral2.8%
Negative4.8%
Written reviews485 reviews
Positive60.8%
Neutral7.2%
Negative32.0%

FastSloth

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fasting Tracker App by Numify

Reported bugs

4 issues
  • Incorrect date and time display
  • Inability to edit personal information
  • Inconsistent data saving and syncing
  • Frequent crashes and app not opening

Requested features

4 requests
  • Add 18:6 fasting option
  • Include meal logging and nutrition tracking
  • Provide more fasting protocols and customization
  • Improve notifications and reminders

FastSloth

Not enough reviews yet to summarise bugs or requests.

In-app purchases

19 purchases

Fasting Tracker App by Numify

Subscriptions19
  • Fasting Plus2 variants$3.997 Days
  • Fasting Plus3 Days trial$3.997 Days
  • Fasting Plus$4.997 Days
Show 16 more
  • Premium features3 Days trial$5.997 Days
  • Fasting Plus7 Days trial$5.997 Days
  • Fasting Plus$5.997 Days
  • Lose Weight with a Fasting App$5.997 Days
  • Plus3 Days trial$9.997 Days
  • Premium features$14.991 Month
  • Fasting Plus$19.993 Months
  • Plus$29.993 Months
  • Fast Tracker for Fasting Clock$29.993 Months
  • Fasting Special Offer1 Year trial$39.991 Year
  • Fasting Plus$49.991 Year
  • Fasting Plus3 Days trial$49.991 Year
  • Premium features$59.991 Year
  • Premium features1 Month trial$59.991 Year
  • Fasting Tracker & Fast Timer3 Days trial$69.991 Year
  • Fasting Tracker & Fast Timer$69.991 Year
1 purchases

FastSloth

One-time1
  • Premium Lifetime$1.99

Questions

Is Fasting Tracker App by Numify free?
Fasting Tracker App by Numify is free to download, with in-app purchases available.
Is FastSloth free?
FastSloth is free to download, with in-app purchases available.
Which has better reviews, Fasting Tracker App by Numify or FastSloth?
FastSloth is rated higher. Fasting Tracker App by Numify averages 4.7 out of 5 from 5.9K ratings, while FastSloth averages 5.0 from 5 ratings.
Do Fasting Tracker App by Numify or FastSloth have ads?
Neither Fasting Tracker App by Numify nor FastSloth shows ads.
Which is updated more often, Fasting Tracker App by Numify or FastSloth?
Fasting Tracker App by Numify ships an update monthly, and FastSloth every 6 days. Most recently, Fasting Tracker App by Numify was updated on October 28, 2026 and FastSloth on October 24, 2026.

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