Comparison

Empty vs BMI Calculator

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

Head to head
About

Empty

This app helps you track various fasting methods, including intermittent, circadian rhythm, and custom plans. It provides smart reminders and detailed progress views to support your health goals.

Highlights
  • Intermittent Fasting Tracking
  • Circadian Rhythm Fasting
  • Custom Fasting Plans
  • Smart Reminders
  • Progress Visualization
  • Fasting History
Features
Read full description

Empty is a simple and intuitive fasting tracker used for Intermittent, Circadian Rhythm, and Custom fasting. Choose your favorite fasting type and Empty will track and remind your ongoing progress. Empty supports the following fasting types: 16-Hour Intermittent Fasting (16/8): Popularized by Hugh Jackman (Wolverine) as a efficient way to remove extra weight. 16/8 fasting means eating within a window of eight hours each day such as from 12pm to 8pm and not eating during the remaining 16 hours. It helps get us into the sweet metabolic state of fat burning called Ketosis. Circadian Rhythm Fasting: Based on the research of Dr. Satchin Panda, the confining caloric consumption to about 12-hour period as people did just a century ago. It helps staving off high cholesterol, diabetes and obesity. Custom Fasting: Setup a custom program to meet your fasting goals. You choose your fasting hours per day, and days per week. Features: + Create Custom Fast + Smart Reminder (Remind you when your fasting completes even when the app is turn off) + Create your own custom alarms to fast + View the progress of the current fast + Show the full detail of your fasting days + Show the recent 7 fasts in chart and list + Get the average fasting time right in the Main Interface + Get the total hours of fasting in the Main Interface

About

BMI Calculator

Features
Read full description

BMI Calculator helps you quickly calculate your Body Mass Index and understand your health status with a clean, simple experience designed for everyday use. Whether you want to check your BMI, monitor weight changes, or follow your progress over time, BMI Calculator gives you the tools to stay informed and consistent. Features • Fast BMI calculator for height and weight • Supports metric and imperial units • Clear BMI result categories • Track BMI history over time • View weight and BMI progress charts • Review past entries with detailed history • Simple, light, and easy-to-read design Why You’ll Love It • Calculate BMI in seconds • Monitor changes with visual charts • Keep your health data organized • Build better awareness of your body trends • Stay motivated with progress tracking BMI Calculator is ideal for anyone who wants a simple BMI tracker, weight tracker, and health progress companion in one app.

Screenshots

Empty4 screens
BMI Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: BMI Calculator at none against Empty's 1. BMI Calculator also leads on ads (none vs shown). Empty's advantage is iOS requirement (15.6 vs 17.6). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Empty sells 1 one-off in-app purchase. BMI Calculator asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Empty versus BMI Calculator: the parameters behind the verdict, then further details
ParameterEmptyBMI Calculator
PriceFreeFree
Rating4.5 (95 ratings) — better—
Positive reviews70.0% of reviews—
Number of ratings95 — better—
Update frequencyEvery 6 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size14 MB8 MB
Age rating4+4+
DeveloperThang NguyenKamal Mirzayev

In-app purchases

1 purchases

Empty

One-time1
  • Pro Upgrade$4.99
None

BMI Calculator

No in-app purchases

Questions

Is Empty free?
Empty is free to download, with in-app purchases available.
Is BMI Calculator free?
BMI Calculator is free to download, with no in-app purchases.
Do Empty or BMI Calculator have ads?
Empty shows ads; BMI Calculator does not.

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