Comparison

Happy Scale vs BMI with Weight Expectations

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

Head to head
About

Happy Scale

This app helps you understand your weight loss journey by analyzing scale fluctuations. It smooths out daily variations to reveal your true progress, predict future weights, and break down goals into manageable milestones.

Highlights
  • See true progress with mathematical analysis
  • Smooth out weigh-in fluctuations
  • Predict future weight
  • Break down goals into milestones
  • Integrates with Apple Health
  • BMI calculator
Features
Read full description

Dieting is hard enough. But when you work hard, hop on the scale, and see a number that’s higher than yesterday? Well, that’s just not fair! It’s time to tame the scale! Happy Scale helps you make sense of the frustrating ups and downs of weigh-ins by using mathematical analysis to make sense of your scale weights. You’ll: • understand your true trend, • take the sting out of plateaus, and • be able to predict what you’ll weigh for an upcoming event • SEE YOUR TRUE PROGRESS: Happy Scale uses sophisticated math to learn the true trend of your progress. You can see what you’re really losing each week. • NO MORE PLATEAUS: Use the moving average progress tracking options to see steady progress every day! • SLOW AND STEADY WINS THE RACE: Have a lot to lose? Break your weight loss goal into small, incremental milestone goals so you can focus on short-term, achievable goals! • THE PERFECT SUPPLEMENT: Use this app in conjunction with other popular apps. Weight entries can be automatically imported from apps that support exporting to the Apple Health app, and Happy Scale will export all your weights to Apple Health so other apps can see them. • IMAGINE YOUR SUCCESS: See predictions about what you’ll weigh in the future if you keep up your current trends, and set commitment goals for yourself! • KNOW YOUR NUMBERS: Our new BMI calculator shows you exactly where you stand and what weight ranges you need to hit for different health categories. No more guessing if you’re almost there! • WORKS ON ALL YOUR DEVICES: Seamlessly sync between your iPhone and iPad! So, have your previous diets failed because you lost motivation? Try Happy Scale today and join thousands of users who use this app to TAME THE SCALE! ------------------ This app optionally integrates with Apple Health. It is an opt-in feature that’s accessible from the Settings menu. ------------------ If you purchase a monthly or yearly subscription, payment will be charged to your iTunes account. Your account will automatically be charged for renewal within 24-hours prior to the end of the current subscription unless you disable auto-renew. You can turn off auto-renewal at any time by going to your Account Settings on the App Store after purchase. Privacy Policy: https://happyscale.com/privacy Terms of Use: https://happyscale.com/terms

About

BMI with Weight Expectations

Calculate your Body Mass Index (BMI) instantly with this straightforward tool. It helps you understand your weight category, from underweight to obese, encouraging healthier lifestyle choices. Simply input your weight and height to get immediate results and take control of your well-being.

Highlights
  • Instant BMI calculation
  • Identifies BMI categories (underweight, normal, overweight, obese)
  • Promotes health-conscious lifestyle changes
  • Simple weight and height input
  • Free to use
Features
Read full description

BMI Calculator is a free application for you to calculate your BMI (Body Mass Index). The result of the calculation indicates your BMI category, for example underweight or obese. The simple and hassle free way to determine your body mass index. Body mass index can determine if you are overweight or obese, underweight or normal. For those conscious of their health, calculating BMI can lead to a change in lifestyle that may otherwise prejudice present or future health. Just enter your weight and height in the calculator and get your results in an instant. Give it a try and calculate your personal BMI. Take charge of your health today!

Screenshots

Happy Scale4 screens
BMI with Weight Expectations2 screens

Verdict

The call

The clearest difference is monetization model: BMI with Weight Expectations at free against Happy Scale's subscription. BMI with Weight Expectations also leads on iOS requirement (9.0 vs 16.0). Happy Scale's advantage is update cadence (every 5 days vs every 2 months) and review sentiment (92% vs 67%). On price, rating, ads 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. Happy Scale sells 8 in-app purchases, starting at $1.99 per month and BMI with Weight Expectations sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Happy Scale against 5.0 for BMI with Weight Expectations. That said, the two scores are not equally well evidenced: Happy Scale has 58K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 92% of Happy Scale's written reviews are positive against 67% of BMI with Weight Expectations's.

UpkeepUpdate frequency

Happy Scale ships an update every 5 days, BMI with Weight Expectations every 2 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 5 level
Happy Scale versus BMI with Weight Expectations: the parameters behind the verdict, then further details
ParameterHappy ScaleBMI with Weight Expectations
PriceFreeFree
Rating4.9 (58K ratings)5.0 (4 ratings) — better
Positive reviews91.7% of reviews — better66.7% of reviews
Number of ratings58K — better4
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
Best chart rank#195 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size66 MB27 MB
Age rating12++12
DeveloperFront Pocket Software LLCAppNextDoor Labs

Customer experience

Happy Scale

All ratings58,108 ratings
Positive98.2%
Neutral1.2%
Negative0.6%
Written reviews735 reviews
Positive91.7%
Neutral1.6%
Negative6.7%

BMI with Weight Expectations

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Happy Scale

Reported bugs

1 issue
  • Reminders don't work for some users

Requested features

4 requests
  • Add ability to track body measurements and body fat percentage
  • Provide more chart/graph options (60-day, 6-month)
  • Add a watch app or complication for easier access
  • Implement more celebratory features when reaching goals

BMI with Weight Expectations

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Happy Scale

Subscriptions2
  • Happy Scale Deluxe (Monthly)7 Days trial$1.991 Month
  • Happy Scale Deluxe (Yearly)7 Days trial$11.991 Year
One-time6
  • Tip $1$0.99
  • Tip $3$2.99
  • Tip $5$4.99
Show 3 more
  • Tip $10$9.99
  • Happy Scale Premium (Lifetime)$39.99
  • Happy Scale Deluxe (Lifetime)$39.99
1 purchases

BMI with Weight Expectations

One-time1
  • Remove Ads$1.99

Questions

Is Happy Scale free?
Happy Scale is free to download, with in-app purchases available.
Is BMI with Weight Expectations free?
BMI with Weight Expectations is free to download, with in-app purchases available.
Which has better reviews, Happy Scale or BMI with Weight Expectations?
BMI with Weight Expectations is rated higher. Happy Scale averages 4.9 out of 5 from 58K ratings, while BMI with Weight Expectations averages 5.0 from 4 ratings.
Do Happy Scale or BMI with Weight Expectations have ads?
Neither Happy Scale nor BMI with Weight Expectations shows ads.
Which is updated more often, Happy Scale or BMI with Weight Expectations?
Happy Scale ships an update every 5 days, and BMI with Weight Expectations every 2 months. Most recently, Happy Scale was updated on November 11, 2026 and BMI with Weight Expectations on November 3, 2026.

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