# Heart Plot vs Skinfold

The clearest difference is in-app purchases: Skinfold at none against Heart Plot's 4. Skinfold also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Heart Plot sells 4 one-off in-app purchases. Skinfold asks for nothing beyond the download.

Heart Plot ships an update every 2 weeks, Skinfold every 5 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Heart Plot | Skinfold |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skinfold-estimates-and-trends/id6789992143/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 8 MB | 49 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ole Luhrs](https://appshunter.io/developer/1880446879) | [WENTIAN ZHANG](https://appshunter.io/developer/6789992145) |

## What reviewers say

### Heart Plot

[App page](https://appshunter.io/ios/app/heart-plot/id6759740007)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Regular Coffee | $1.99 | one-time |
| Heart Plot Premium | $1.99 | one-time |
| Large Coffee | $2.99 | one-time |


### Skinfold

[App page](https://appshunter.io/ios/app/skinfold-estimates-and-trends/id6789992143)

Estimate body fat percentage using three-site skinfold measurements. Track changes over time with local history and optionally sync your final estimate to Apple Health. The app provides clear guidance and supports both millimeters and inches.

**Highlights:** Three-site skinfold measurements, Body fat percentage estimation, Local history and trend tracking, Apple Health integration (optional), Millimeter and inch unit support, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Heart Plot free?

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

### Is Skinfold free?

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

### Do Heart Plot or Skinfold have ads?

Neither Heart Plot nor Skinfold shows ads.

### Which is updated more often, Heart Plot or Skinfold?

Heart Plot ships an update every 2 weeks, and Skinfold every 5 days. Most recently, Heart Plot was updated on October 28, 2026 and Skinfold on October 31, 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.*