# Fast36 vs Keto Tracker .de

The clearest difference is iOS requirement: Keto Tracker .de at 14.0 against Fast36's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fast36 sells 2 in-app purchases, starting at $14.99 per month and Keto Tracker .de sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Fast36 | Keto Tracker .de |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 7 MB | 26 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [AKN Technologies FZ-LLC](https://appshunter.io/developer/1872738914) | [Marcel Goldfuss](https://appshunter.io/developer/1864534025) |

## What reviewers say

### Fast36

[App page](https://appshunter.io/ios/app/fast36/id6758402027)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fast36 Pro - Monthly | $14.99 | per month |
| Fast36 Pro - Yearly | $99.99 | per year |


### Keto Tracker .de

[App page](https://appshunter.io/ios/app/keto-tracker-de/id6782939318)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keto Pro | $4.99 | per month |


## Frequently asked questions

### Is Fast36 free?

Fast36 is free to download, with in-app purchases available.

### Is Keto Tracker .de free?

Keto Tracker .de is free to download, with in-app purchases available.

### Do Fast36 or Keto Tracker .de have ads?

Neither Fast36 nor Keto Tracker .de 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.*