Comparison

BMI Calculator vs Interval Timer (Simple)

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

Head to head
About

BMI Calculator

Features
Read full description

Track your BMI and weight effortlessly. BMI Calculator gives you instant results, beautiful trend charts, and complete privacy — all in one simple app. INSTANT BMI CALCULATION • Calculate your BMI in seconds — enter weight, height is saved automatically • Clear result with BMI value, category, and color-coded indicator • Supports both metric (kg/cm) and imperial (lb/ft+in) units SMART GOAL TRACKING - YOUR PERSONAL WEIGHT COACH • Set a target weight, deadline & weekly pace (0.25–1 kg / 0.5–2 lb per week) • Real-time progress cards: start weight, current, target, remaining — all at a glance • Forecast engine: see exactly when you'll hit your goal at your current pace vs. your planned pace • Pace comparison alerts: green = on track, orange = too slow/fast, red = gaining weight — with guidance TRACK YOUR PROGRESS • Save every measurement with weight, height, date, and BMI • Tag entries: diet, workout, medical check, or create your own • Browse your full BMI and weight history at a glance CHARTS & STATISTICS • Interactive charts showing your BMI trend over time • Group data by day, week, or month • Swipe to navigate between time ranges • Year-based history summary for long-term insight HOME SCREEN WIDGET • See your latest BMI and weight without opening the app • Stay motivated with at-a-glance progress tracking EXPORT & FULL CONTROL • Export your data as CSV or PDF • Import previous measurements • All data stored locally on your device — fully private, fully yours • Delete everything anytime with one tap FREE & PREMIUM • Full functionality available for free (with ads) • Upgrade to Premium for an ad-free experience --- Premium Version The app offers an automatically renewing Premium subscription. Payment will be charged to your iTunes Account upon confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours before the end of the current period and specify the cost of renewal. Subscriptions may be managed by the user, and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any prices referenced are in US Dollars (USD). Pricing in other currencies and countries may vary and actual changes may be converted to your local currency depending on the country of residence. Links • Website: https://bmi-calculator.pamnet.pl/ • Privacy Policy: https://bmi-calculator.pamnet.pl/privacy-policy/ • Terms of Service: https://bmi-calculator.pamnet.pl/terms-and-conditions/

About

Interval Timer (Simple)

Features
Read full description

Why are all these interval timers so complicated? Ain't nobody got time for that. Stupid simple interval timer. Set interval. Toggle sound. Get to work. EXOX timer (Every X On The X).

Screenshots

BMI Calculator4 screens
Interval Timer (Simple)3 screens

Verdict

The call

The clearest difference is ads: Interval Timer (Simple) at none against BMI Calculator's shown. Interval Timer (Simple) also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.2). On price, update cadence 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 sells 3 in-app purchases, starting at $0.99 per month and Interval Timer (Simple) sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BMI Calculator ships an update every 6 days, Interval Timer (Simple) weekly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level
BMI Calculator versus Interval Timer (Simple): the parameters behind the verdict, then further details
ParameterBMI CalculatorInterval Timer (Simple)
PriceFreeFree
Update frequencyEvery 6 days — betterWeekly
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.215.1 — better
Further details — not scored
Size8 MB28 MB
Age rating17+4+
DeveloperPawel MalyszczukDomett Xing

In-app purchases

3 purchases

BMI Calculator

Subscriptions2
  • Premium Monthly$0.991 Month
  • Premium Yearly7 Days trial$3.991 Year
One-time1
  • Premium Lifetime$9.99
1 purchases

Interval Timer (Simple)

One-time1
  • Lifetime Purchase$6.99

Questions

Is BMI Calculator free?
BMI Calculator is free to download, with in-app purchases available.
Is Interval Timer (Simple) free?
Interval Timer (Simple) is free to download, with in-app purchases available.
Do BMI Calculator or Interval Timer (Simple) have ads?
BMI Calculator shows ads; Interval Timer (Simple) does not.
Which is updated more often, BMI Calculator or Interval Timer (Simple)?
BMI Calculator ships an update every 6 days, and Interval Timer (Simple) weekly. Most recently, BMI Calculator was updated on October 2, 2026 and Interval Timer (Simple) on October 7, 2026.

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