# Happy Scale vs BMI

The clearest difference is review sentiment: Happy Scale at 92% against BMI's 28%. Happy Scale also leads on ads (none vs shown) and ratings volume (58K vs 200). BMI's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (14.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Happy Scale sells 8 in-app purchases, starting at $1.99 per month and BMI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Happy Scale holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Happy Scale has 58K ratings behind it against 200, so its average is the more settled of the two. Written reviews point the same way: 92% of Happy Scale's written reviews are positive against 28% of BMI's.

Happy Scale ships an update every 5 days, BMI every 3 weeks. The most recent releases landed on October 28, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Happy Scale | BMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (58K ratings)](https://appshunter.io/ios/app/happy-scale/id532430574/reviews)** | [4.7 (200 ratings)](https://appshunter.io/ios/app/bmi-calculator-weight-tracker/id1585396256/reviews) |
| Number of ratings | **58K** | 200 |
| Positive reviews | **91.6% of reviews** | 28.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 66 MB | 48 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Front Pocket Software LLC](https://appshunter.io/developer/425877766) | [Oval Software Oy](https://appshunter.io/developer/1438258178) |

## What reviewers say

### Happy Scale

[App page](https://appshunter.io/ios/app/happy-scale/id532430574)

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:** macOS Compatibility, Family Sharing

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Happy Scale Deluxe (Monthly) | $1.99 | per month |
| Happy Scale Deluxe (Yearly) | $11.99 | per year |
| Tip $1 | $0.99 | one-time |
| Tip $3 | $2.99 | one-time |
| Tip $5 | $4.99 | one-time |
| Tip $10 | $9.99 | one-time |
| Happy Scale Premium (Lifetime) | $39.99 | one-time |
| Happy Scale Deluxe (Lifetime) | $39.99 | one-time |

**What reviewers like**

- 👍 Excellent weight loss support tool
- 👍 Motivating and engaging to track weight
- 👍 Provides great insights and predictions
- 👍 Smooths out weight fluctuations
- 👍 Breaks down weight loss journey into milestones

**What reviewers complain about**

- 🐛 Reminders don't work for some users
- 💰 Subscription model is expensive for some

**Reported bugs**

- Reminders don't work for some users

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/bmi-calculator-weight-tracker/id1585396256)

Easily calculate your Body Mass Index (BMI) to understand your weight classification and ideal weight. Track your weight progress towards a personal goal, whether for weight loss or gain. This tool provides a quick BMI assessment and classification based on WHO standards.

**Highlights:** BMI calculation, Weight classification, Ideal weight determination, Weight tracking, Target weight setting, WHO BMI table

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove advertising | $2.99 | one-time |


## Frequently asked questions

### Is Happy Scale free?

Happy Scale is free to download, with in-app purchases available.

### Is BMI free?

BMI is free to download, with in-app purchases available.

### Which has better reviews, Happy Scale or BMI?

Happy Scale is rated higher. Happy Scale averages 4.9 out of 5 from 58K ratings, while BMI averages 4.7 from 200 ratings.

### Do Happy Scale or BMI have ads?

BMI shows ads; Happy Scale does not.

### Which is updated more often, Happy Scale or BMI?

Happy Scale ships an update every 5 days, and BMI every 3 weeks. Most recently, Happy Scale was updated on October 28, 2026 and BMI on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*