# BMI Calculator・Weight Tracker vs iSpruz

The clearest difference is review sentiment: BMI Calculator・Weight Tracker at 84% against iSpruz's 20%. BMI Calculator・Weight Tracker also leads on rating (4.8 vs 2.2) and ratings volume (508 vs 38). iSpruz's advantage is in-app purchases (none vs 5) and update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BMI Calculator・Weight Tracker sells 5 in-app purchases, starting at $9.99 per month. iSpruz asks for nothing beyond the download.

BMI Calculator・Weight Tracker holds the better App Store score, 4.8 against 2.2. That said, the two scores are not equally well evidenced: BMI Calculator・Weight Tracker has 508 ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 84% of BMI Calculator・Weight Tracker's written reviews are positive against 20% of iSpruz's.

BMI Calculator・Weight Tracker ships an update every 2 months, iSpruz monthly. The most recent releases landed on September 13, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | BMI Calculator・Weight Tracker | iSpruz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (508 ratings)](https://appshunter.io/ios/app/bmi-calculatorweight-tracker/id1560499972/reviews)** | [2.2 (38 ratings)](https://appshunter.io/ios/app/ispruz/id1587304351/reviews) |
| Number of ratings | **508** | 38 |
| Positive reviews | **84.0% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Freemium | **Free** |
| Size | 53 MB | 250 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AboutMe Apps, Inc.](https://appshunter.io/developer/1088980079) | [HARVEST INNOVATION TECHNOLOGY LIMITED](https://appshunter.io/developer/1637588999) |

## What reviewers say

### BMI Calculator・Weight Tracker

[App page](https://appshunter.io/ios/app/bmi-calculatorweight-tracker/id1560499972)

Easily calculate your Body Mass Index (BMI) and track your weight progress. Visualize your trends with graphs, gain predictive insights, and set goals for your health journey. Supports metric and imperial systems, with Apple Watch integration.

**Highlights:** BMI Calculation, Weight Tracking, Metric and Imperial Systems, Apple Watch Integration, Graphs and Stats, Predictive Insights

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monitor your weight & progress | $9.99 | per month |
| Monthly Premium | $9.99 | per month |
| Predict your future weight＋BMI | $19.99 | per year |
| Premium Year | $19.99 | per year |
| Premium 3 Months | $19.99 | per 3 months |

**What reviewers like**

- 👍 Simple and easy-to-use interface
- 📊 Effective weight tracking and logging
- 🎨 Aesthetically pleasing design
- ⚡ Quick daily input process
- 🏥 Integrates with Apple Health

**What reviewers complain about**

- 🐛 App crashes after recent updates
- 🐛 App won't open on iOS 17.5.1
- 😔 Potentially negative psychological impact with BMI labels
- 🎨 Loss of color customization options

**Reported bugs**

- App stopped working after June 2024 update
- Crashes on iPad Air (5th Generation) with iOS 17.5.1
- Unable to open app on latest iOS versions
- App fails to launch after recent updates

**Requested features**

- Restore different color options for tracking
- More sensitive language for BMI categorization


### iSpruz

[App page](https://appshunter.io/ios/app/ispruz/id1587304351)

This app acts as a personal oral care assistant, guiding users through a comprehensive, scientific, and personalized tooth cleaning experience. It offers visual brushing guidance and detailed reports to help develop better oral hygiene habits.

**Highlights:** Visual brushing service, Real-time guidance, Personalized key area identification, Targeted tooth guard, Brushing report details, Oral health promotion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMI Calculator・Weight Tracker free?

BMI Calculator・Weight Tracker is free to download, with in-app purchases available.

### Is iSpruz free?

iSpruz is free to download, with no in-app purchases.

### Which has better reviews, BMI Calculator・Weight Tracker or iSpruz?

BMI Calculator・Weight Tracker is rated higher. BMI Calculator・Weight Tracker averages 4.8 out of 5 from 508 ratings, while iSpruz averages 2.2 from 38 ratings.

### Do BMI Calculator・Weight Tracker or iSpruz have ads?

Neither BMI Calculator・Weight Tracker nor iSpruz shows ads.

### Which is updated more often, BMI Calculator・Weight Tracker or iSpruz?

BMI Calculator・Weight Tracker ships an update every 2 months, and iSpruz monthly. Most recently, BMI Calculator・Weight Tracker was updated on September 13, 2026 and iSpruz on June 9, 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.*