# FAS16 vs Fasting Tracker

The clearest difference is device support: Fasting Tracker at 3 against FAS16's —. Fasting Tracker also leads on iOS requirement (15.3 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | FAS16 | Fasting Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 4 days |
| Size | 1 MB | 42 MB |
| Requires iOS | 17.0 | **15.3** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Kouki Saito](https://appshunter.io/developer/912099331) | [Days Until LTD](https://appshunter.io/developer/1224814198) |

## What reviewers say

### FAS16

[App page](https://appshunter.io/ios/app/fas16/id6473745181)

**In-app purchases:** none


### Fasting Tracker

[App page](https://appshunter.io/ios/app/fasting-tracker-fastingai/id6578452948)

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

**In-app purchases:** none


## Frequently asked questions

### Is FAS16 free?

FAS16 is free to download, with no in-app purchases.

### Is Fasting Tracker free?

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

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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.*