Comparison

BMI Calculator 2025 vs Simple Fasting Tracker

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

Head to head
About

BMI Calculator 2025

Easily calculate your Body Mass Index (BMI) with a user-friendly interface. Input your height and weight in various units, and see your BMI update in real-time. This app helps you understand your weight status and potential health risks.

Highlights
  • Real-time BMI updates
  • Metric, Imperial, and British units
  • No registration required
  • Multiple themes
  • Customizable UI layout
  • Large, clear fonts
  • Multilingual support
Features
Read full description

With BMI Calculator 2 you can calculate your BMI using the slick user friendly interface. Just select your height and weight in either Metric, Imperial or British stones and pounds and your BMI will be displayed. BMI Calculator 2 will even calculate your BMI on the fly updating instantly with every adjustment - unlike every other BMI Calculator app. BMI is the world standard for indicating whether you are at a healthy or unhealthy weight, and can even indicate risk factors for certain diseases such as heart disease, diabetes and high blood pressure. Also very useful of course if you simply want to monitor your weight while you follow a diet plan. - select from metric, imperial or British stones and pounds systems - super fast entry, just click or swipe to set your weight and height and your BMI updates instantly and constantly - unlike just about every other app like this, there is no need to register/sign up/log in or anything annoying like that - just open the app and get started - multiple themes available - even switch the position of the elements on screen to suit your preference or your dominant hand - large, clear fonts and UI elements - supports English, French, Chinese, Italian and Japanese languages

About

Simple Fasting Tracker

Easily track your intermittent fasting journey with personalized schedules, goal setting, and progress monitoring. Syncs with Apple Watch and HealthKit for seamless data management. Offers detailed analytics to optimize your fasting.

Highlights
  • Quick fast logging
  • Customizable fasting schedules
  • Real-time progress tracking
  • Track weight and body fat
  • Personalized fasting analytics
  • Apple Watch and HealthKit sync
  • Widgets for quick access
Features
Read full description

Fasting tracker – Easy, simple and intuitive. You can start and track your fasts within seconds. You can set personalised fasting and weight goals, create custom fasting schedules, and receive reminders to stay on track. Plus, you can track and optimize your fasting journey while monitoring weight, body fat percentage, waist circumference, and other key metrics. If you have an Apple Watch, you can start and end your fasts, view current fast progress and also view historic data right from your Watch. The data is automatically synced with iPhone and Health kit. Features: - Quick fast log - Customizable fasting schedules - Real-time progress tracking - Track weight, body fat percentage, waist circumference, BMI and more. - Set and monitor weight goals - Personalized fasting analytics - Reminders to keep you focused Apple Watch Compatible: Start, stop and track your fasts directly from the watch which auto-syncs with the phone and HealthKit. (Yes, we repeated the Apple Watch text - we worked very hard on the feature!) Widgets: Quick access to fasting status, progress, and monthly metrics. Compare: Compare fasting's effect on weight, body fat, waist circumference, and BMI. (AI powered analytics with a human touch) Apple HealthKit Compatible: Seamlessly sync your health data. Note: This app is for general tracking and not a health / diagnostic tool. Always consult a healthcare professional before starting any fasting regimen. For feedback, we love hearing from you: myfastingapptracker@gmail.com Privacy Policy & Terms of Use: https://fastingapp.wordpress.com/terms-of-use/ Website: https://fastingapp.wordpress.com/

Screenshots

BMI Calculator 20254 screens
Simple Fasting Tracker4 screens

Verdict

The call

BMI Calculator 2025 and Simple Fasting Tracker both sit at 5.0 stars, but that hides the real split: 78% of Simple Fasting Tracker's written reviews are positive against 0% of BMI Calculator 2025's. Simple Fasting Tracker also leads on ads (none vs shown). BMI Calculator 2025's advantage is update cadence (weekly vs fortnightly) and iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and in-app purchases 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. BMI Calculator 2025 sells 1 one-off in-app purchase and Simple Fasting Tracker sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BMI Calculator 2025 holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 23 and 60 respectively. Written reviews complicate that: 0% of BMI Calculator 2025's written reviews are positive against 78% of Simple Fasting Tracker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

BMI Calculator 2025 ships an update weekly, Simple Fasting Tracker fortnightly. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
BMI Calculator 2025 versus Simple Fasting Tracker: the parameters behind the verdict, then further details
ParameterBMI Calculator 2025Simple Fasting Tracker
PriceFreeFree
Rating5.0 (23 ratings) — better4.8 (60 ratings)
Positive reviews0.0% of reviews77.8% of reviews — better
Number of ratings2360 — better
Update frequencyWeekly — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.0
Further details — not scored
Size42 MB41 MB
Age rating4+12+
DeveloperSimon BurgessMamta Shah

Customer experience

BMI Calculator 2025

All ratings23 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Simple Fasting Tracker

All ratings60 ratings
Positive96.7%
Neutral1.7%
Negative1.7%
Written reviews9 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

In-app purchases

1 purchases

BMI Calculator 2025

One-time1
  • Remove Ads$1.99
6 purchases

Simple Fasting Tracker

Subscriptions5
  • Weekly- Intermittent fasting$4.997 Days
  • Monthly - Intermittent fasting3 Days trial$9.991 Month
  • Year Promo - Fasting Tracker$14.991 Year
Show 2 more
  • Yearly - Intermittent Fasting1 Year trial$24.991 Year
  • Yearly - Intermittent fasting3 Days trial$24.991 Year
One-time1
  • Lifetime - Fasting Tracker$49.99

Questions

Is BMI Calculator 2025 free?
BMI Calculator 2025 is free to download, with in-app purchases available.
Is Simple Fasting Tracker free?
Simple Fasting Tracker is free to download, with in-app purchases available.
Which has better reviews, BMI Calculator 2025 or Simple Fasting Tracker?
BMI Calculator 2025 is rated higher. BMI Calculator 2025 averages 5.0 out of 5 from 23 ratings, while Simple Fasting Tracker averages 4.8 from 60 ratings.
Do BMI Calculator 2025 or Simple Fasting Tracker have ads?
BMI Calculator 2025 shows ads; Simple Fasting Tracker does not.
Which is updated more often, BMI Calculator 2025 or Simple Fasting Tracker?
BMI Calculator 2025 ships an update weekly, and Simple Fasting Tracker fortnightly. Most recently, BMI Calculator 2025 was updated on June 1, 2026 and Simple Fasting Tracker on September 24, 2026.

Other comparisons