# FastenBuddy vs Keto Tracker .de

The clearest difference is update cadence: Keto Tracker .de at daily against FastenBuddy's every 5 days. Keto Tracker .de also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. FastenBuddy sells 4 in-app purchases, starting at $11.99 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.

FastenBuddy ships an update every 5 days, Keto Tracker .de daily. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FastenBuddy | Keto Tracker .de |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Monetization | Freemium | — |
| Size | 130 MB | 26 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Nadine Thomainsky](https://appshunter.io/developer/1896707111) | [Marcel Goldfuss](https://appshunter.io/developer/1864534025) |

## What reviewers say

### FastenBuddy

[App page](https://appshunter.io/ios/app/fastenbuddy/id6770002304)

This app offers a comprehensive approach to intermittent fasting with various methods, a smart timer, and personalized goal setting. It also includes a calorie tracker with AI meal recognition, a ketogenic scanner, and a buddy system for finding fasting partners. Access over 100 recipes and track your sports activities.

**Highlights:** Multiple intermittent fasting methods, AI-powered calorie and meal tracking, Ketogenic scanner for product analysis, Buddy system for fasting partners, Extensive recipe library, Sport activity tracking

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fastenbuddy Pro Monatlich | $11.99 | per month |
| Fastenbuddy Pro Jährlich | $69.99 | per year |
| Fastenbuddy Premium | $8.99 | one-time |
| Fastenbuddy Pro Lifetime | $199.99 | one-time |


### 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 FastenBuddy free?

FastenBuddy 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 FastenBuddy or Keto Tracker .de have ads?

Neither FastenBuddy nor Keto Tracker .de shows ads.

### Which is updated more often, FastenBuddy or Keto Tracker .de?

FastenBuddy ships an update every 5 days, and Keto Tracker .de daily. Most recently, FastenBuddy was updated on October 31, 2026 and Keto Tracker .de on October 25, 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.*