Comparison

BMI Calculator, Weight Tracker vs BiggerKeys

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

Head to head
About

BMI Calculator, Weight Tracker

Calculate your Body Mass Index (BMI) and monitor your weight progress with detailed analytics and infographics. Track weight loss, analyze weight gain, and set target weights for personalized feedback. Features automatic cloud backup for your data.

Highlights
  • BMI calculation for multiple profiles
  • Weight monitoring and trend analysis
  • Body fat percentage insights
  • Data analytics with graphs and charts
  • Target weight setting
  • Automatic cloud backup
Features
Read full description

BMI Calculator lets you calculate your Body mass index so that you can find your ideal weight, monitor your realtime weight, get meaningful insights on your body fat percentage and more. Make your daily weight loss program effective with our data analytics, graphs and charts. It’s an ideal application for tracking your weight loss, analyzing your weight gain and tracking your current weight. KEY FEATURES • BMI Calculation for multiple user profiles. • Review analytics for up to six (06) months. • Add target weight to get regular feedback. • Infographics detailing your BMI, weight trends & fat percentage rates. • Automatic cloud backup, so that you never lose your data. DISCLAIMER Body mass index (BMI) is a person’s weight in kilograms divided by the square of height in meters. BMI is an inexpensive and easy screening method for weight category: underweight, healthy weight, overweight, and obesity. BMI does not measure body fat directly, but BMI is moderately correlated with more direct measures of body fat. PRIVACY POLICY https://sites.google.com/appnap.io/privacy TERMS OF USE https://sites.google.com/appnap.io/terms SUPPORT DESK If you have any questions or feedback, feel free to contact us here: • Email: info@appnap.io • Facebook: https://www.facebook.com/appnap • Official Website: https://appnap.io

About

BiggerKeys

This keyboard app offers larger keys and adjustable spacing to assist users with tremors or motor control challenges. It features gentle typing responses, high-contrast themes, and optional feedback to reduce errors and improve readability for a more comfortable typing experience.

Highlights
  • Adjustable key size and spacing
  • Typing response on finger lift
  • Adjustable debounce for double-taps
  • Dwell-to-confirm typing mode
  • High-contrast theme and large fonts
  • Press-preview magnifier
  • Optional sound and haptic feedback
Features
Read full description

BiggerKeys is a keyboard built for hands that don't always cooperate. If a tremor, Parkinson's disease, or another motor-control condition makes the standard keyboard feel like a moving target, BiggerKeys gives you bigger keys, more breathing room between them, and gentle features that quietly forgive the kind of mistakes a shaky hand tends to make. It was designed with the people who need it in mind, and it works in any app where you can type. KEYS THAT FIT YOUR HANDS Make the keys as large as you like and add as much space between them as you need. You set the size and spacing, so the keyboard fits you, instead of the other way around. GENTLE ON TREMOR BiggerKeys is built to reduce typing mistakes, not to judge them: - Keys respond when you lift your finger, not the instant you touch down, so a brush against the wrong key won't type it. - An adjustable debounce quietly ignores accidental double-taps on the same key. - An optional dwell-to-confirm mode types a key only after your finger rests on it for a moment, for steadier, more deliberate input. EASY TO SEE Turn on the high-contrast theme and larger fonts for crisp, clearly outlined keys that are easy to read, including for low vision. A press-preview magnifier pops the key you're touching up above your finger so you can confirm it before you commit. WORKS IN YOUR LANGUAGE BiggerKeys follows your device's language automatically, so you get QWERTY, AZERTY, or QWERTZ as appropriate, and you can override the layout by hand whenever you prefer. FEEDBACK THE WAY YOU LIKE IT Optional sound on each key press helps confirm your typing, and works without any special permissions. If you'd like a physical buzz as well, BiggerKeys can add haptic feedback. This is the only reason it ever asks for Allow Full Access, and it is completely optional. Core typing always works without it. PRIVATE BY DESIGN Your words are yours. BiggerKeys has no network access, collects no data, and never logs or stores what you type, not on your device, and certainly not anywhere else. Nothing leaves your phone. Even if you enable Full Access for haptics, the keyboard still sends nothing, anywhere. There are no accounts and no tracking. GETTING STARTED Open the BiggerKeys app and follow the short setup. You'll add BiggerKeys in Settings, then switch to it with the globe key in any text field. Adjust the size, spacing, theme, and feedback in the app until it feels right, with a live preview that shows your changes as you make them. A NOTE ON CARE BiggerKeys is a typing aid, not a medical device, and it makes no medical claims. It's simply meant to make everyday typing a little easier and a little less frustrating, for the people using it and for the caregivers who help set it up. We'd love your feedback. If something could be easier, tell us, and we'll keep making it better.

Screenshots

BMI Calculator, Weight Tracker4 screens
BiggerKeys4 screens

Verdict

The call

The clearest difference is price: BMI Calculator, Weight Tracker at Free against BiggerKeys's $4.99. BMI Calculator, Weight Tracker also leads on rating (4.6 vs 4.0) and ratings volume (88 vs 1). BiggerKeys's advantage is update cadence (every 11 days vs every 4 months) and review sentiment (100% vs 71%). On ads, in-app purchases 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

BMI Calculator, Weight Tracker is free to download; BiggerKeys costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BMI Calculator, Weight Tracker holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: BMI Calculator, Weight Tracker has 88 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 71% of BMI Calculator, Weight Tracker's written reviews are positive against 100% of BiggerKeys's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

BMI Calculator, Weight Tracker ships an update every 4 months, BiggerKeys every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
BMI Calculator, Weight Tracker versus BiggerKeys: the parameters behind the verdict, then further details
ParameterBMI Calculator, Weight TrackerBiggerKeys
PriceFree — better$4.99
Rating4.6 (88 ratings) — better4.0 (1 ratings)
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings88 — better1
Update frequencyEvery 4 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size8 MB3 MB
Age rating4+4+
DeveloperAppnap Technologies LimitedPierre Stanislas

Customer experience

BMI Calculator, Weight Tracker

All ratings88 ratings
Positive89.8%
Neutral5.7%
Negative4.5%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

BiggerKeys

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BMI Calculator, Weight Tracker

No in-app purchases

None

BiggerKeys

No in-app purchases

Questions

Is BMI Calculator, Weight Tracker free?
BMI Calculator, Weight Tracker is free to download, with no in-app purchases.
Is BiggerKeys free?
BiggerKeys costs $4.99, with no in-app purchases.
Which has better reviews, BMI Calculator, Weight Tracker or BiggerKeys?
BMI Calculator, Weight Tracker is rated higher. BMI Calculator, Weight Tracker averages 4.6 out of 5 from 88 ratings, while BiggerKeys averages 4.0 from 1 ratings.
Do BMI Calculator, Weight Tracker or BiggerKeys have ads?
Neither BMI Calculator, Weight Tracker nor BiggerKeys shows ads.
Which is updated more often, BMI Calculator, Weight Tracker or BiggerKeys?
BMI Calculator, Weight Tracker ships an update every 4 months, and BiggerKeys every 11 days. Most recently, BMI Calculator, Weight Tracker was updated on November 3, 2026 and BiggerKeys on October 31, 2026.

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