# FatYet vs Slimday

The clearest difference is price: Slimday at Free against FatYet's $0.99. FatYet's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Slimday is free to download; FatYet costs $0.99 up front. Slimday sells 1 one-off in-app purchase. FatYet asks for nothing beyond the download.

## The numbers

| Metric | FatYet | Slimday |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/slimday-weight-tracker/id6789822739/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 8 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [树伟 杨](https://appshunter.io/developer/1843510075) | [友健 高](https://appshunter.io/developer/1871964438) |

## What reviewers say

### FatYet

[App page](https://appshunter.io/ios/app/fatyet/id6757675299)

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

**In-app purchases:** none


### Slimday

[App page](https://appshunter.io/ios/app/slimday-weight-tracker/id6789822739)

Log your weight daily, track trends, and set goals with this private diary. Monitor BMI and body fat, earn achievement badges, and sync with Apple Health. An optional Pro unlock offers advanced features like iCloud backup and data export.

**Highlights:** Daily weight logging, Trend charts (7, 30+ days), Goal setting and progress tracking, BMI and body fat monitoring, Achievement badges and streaks, Apple Health integration, Optional Pro unlock for advanced features

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to premium | $0.99 | one-time |


## Frequently asked questions

### Is FatYet free?

FatYet costs $0.99, with no in-app purchases.

### Is Slimday free?

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

### Do FatYet or Slimday have ads?

Neither FatYet nor Slimday shows ads.

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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.*