# Buff vs Katsu'fid

The clearest difference is in-app purchases: Katsu'fid at none against Buff's 10. Katsu'fid also leads on iOS requirement (13.0 vs 16.0). On price there is nothing between them.

Both are free to download. Buff sells 7 in-app purchases, starting at $12.99 per month. Katsu'fid asks for nothing beyond the download.

## The numbers

| Metric | Buff | Katsu'fid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (26 ratings)](https://appshunter.io/ios/app/buff-manhood-testosterone/id6448877218/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 105 MB | 41 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | **iPhone** | — |
| Age rating | 17+ | 17+ |
| Developer | [Moxyzstudio](https://appshunter.io/developer/1746910739) | [Altis Développement](https://appshunter.io/developer/1571895167) |

## What reviewers say

### Buff

[App page](https://appshunter.io/ios/app/buff-manhood-testosterone/id6448877218)

This app helps men naturally boost testosterone levels by tracking sleep, hydration, nutrition, stress, sunlight, and exercise. It offers daily challenges, detailed stats, and scientific insights to improve energy, libido, and reduce anxiety. Unlock new avatars as you progress.

**Highlights:** Daily assessment of sleep, hydration, nutrition, stress, sunlight, and exercise, Detailed statistics to track progress, Scientific insights on testosterone production, Daily goal achievement tracking, Buffalo's encouragements and reminders, Evolving Buffalo avatar unlocks

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $12.99 | per month |
| Premium Features | $12.99 | per month |
| Premium Features | $24.99 | per 3 months |
| Premium Features | $24.99 | per 3 months |
| Premium Features | $34.99 | per year |
| Premium Features | $34.99 | per year |
| Premium Features | $39.99 | per year |


### Katsu'fid

[App page](https://appshunter.io/ios/app/katsufid/id6476870758)

**In-app purchases:** none


## Frequently asked questions

### Is Buff free?

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

### Is Katsu'fid free?

Katsu'fid 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.*