BMI Diary vs BMI Calculator・Weight Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BMI Diary
Track your Body Mass Index (BMI) daily to manage weight and health effectively. Visualize your BMI trends in real-time to monitor progress. This tool is ideal for those focused on weight loss or bodybuilding.
- Daily BMI calculation
- Save BMI values
- Visualize BMI trends
- Weight management
- Health monitoring
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Weight loss and bodybuilding start with effective management of your BMI value! BMI Diary will help you calculate and save BMI values every day. Visualization changes of your BMI values make it easier for users to monitor BMI trends in real-time. Manage your weight and health from BMI Diary! BMI Calculation Reference: https://en.wikipedia.org/wiki/Body_mass_index
BMI Calculator・Weight Tracker
Easily calculate your Body Mass Index (BMI) and track your weight progress. Visualize your trends with graphs, gain predictive insights, and set goals for your health journey. Supports metric and imperial systems, with Apple Watch integration.
- BMI Calculation
- Weight Tracking
- Metric and Imperial Systems
- Apple Watch Integration
- Graphs and Stats
- Predictive Insights
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Calculate your BMI (Body Mass Index) and monitor your weight with our user-friendly app. Whether you’re on a weight loss journey or aiming to maintain a healthy weight, our app provides essential tools to help you reach your goals. Key Features: • BMI Calculation: Easily calculate your BMI using your height and weight. • Metric and Imperial Systems: Choose your preferred measurement system for accurate results. • Weight Tracking: Log your weight regularly to track your progress over time. • Apple Watch Integration: Sync your weight data with Apple Watch for seamless tracking and analysis. • Beautiful Graphs and Stats: Visualize your weight trends with clear graphs and insightful statistics. • Predictive Insights: Understand your true weight trend, predict future weights, and set commitment goals. The BMI Calculator and Weight Loss is free to download and utilize. However, users can opt for a subscription to access additional features. Your subscription will automatically renew and you’ll be billed based on the plan you choose. You can cancel your subscription at any time in the App Store. Disclaimer: Our BMI Calculator is not intended for medical diagnostics. Always consult a healthcare professional before making any health-related decisions. Terms of use: https://aboutmeapps.com/terms-of-use.html Privacy policy: https://aboutmeapps.com/privacy-policy.html
Screenshots
Verdict
The clearest difference is rating: BMI Calculator・Weight Tracker at 4.8 against BMI Diary's 4.1. BMI Calculator・Weight Tracker also leads on ads (none vs shown) and ratings volume (517 vs 7). BMI Diary's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 14.0). On price, in-app purchases, monetization model and device support 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
Both are free to download. BMI Diary sells 1 one-off in-app purchase and BMI Calculator・Weight Tracker sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
BMI Calculator・Weight Tracker holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: BMI Calculator・Weight Tracker has 517 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 75% of BMI Diary's written reviews are positive against 84% of BMI Calculator・Weight Tracker's.
BMI Diary ships an update every 3 weeks, BMI Calculator・Weight Tracker every 2 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | BMI Diary | BMI Calculator・Weight Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (7 ratings) | 4.8 (517 ratings) — better |
| Positive reviews | 75.0% of reviews | 84.0% of reviews — better |
| Number of ratings | 7 | 517 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod, Apple Watch |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 17 MB | 53 MB |
| Age rating | 4+ | 17+ |
| Developer | APPS BAY LIMITED | AboutMe Apps, Inc. |
Customer experience
BMI Diary
BMI Calculator・Weight Tracker
Bugs and requests
BMI Diary
Not enough reviews yet to summarise bugs or requests.
BMI Calculator・Weight Tracker
Reported bugs
4 issues- App stopped working after June 2024 update
- Crashes on iPad Air (5th Generation) with iOS 17.5.1
- Unable to open app on latest iOS versions
- App fails to launch after recent updates
Requested features
2 requests- Restore different color options for tracking
- More sensitive language for BMI categorization
In-app purchases
BMI Diary
- Remove Ads forever$0.99
BMI Calculator・Weight Tracker
- Monitor your weight & progress$9.991 Month
- Monthly Premium$9.991 Month
- Predict your future weight＋BMI7 Days trial$19.991 Year
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- Premium Year$19.991 Year
- Premium 3 Months$19.993 Months
Questions
Is BMI Diary free?
Is BMI Calculator・Weight Tracker free?
Which has better reviews, BMI Diary or BMI Calculator・Weight Tracker?
Do BMI Diary or BMI Calculator・Weight Tracker have ads?
Which is updated more often, BMI Diary or BMI Calculator・Weight Tracker?
Other comparisons
