# Fitzy AI vs Brenzo

The clearest difference is iOS requirement: Brenzo at 15.1 against Fitzy AI's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Fitzy AI sells 2 in-app purchases, starting at $3.99 per month and Brenzo sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Fitzy AI ships an update every 9 days, Brenzo every 2 weeks. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Fitzy AI | Brenzo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 19 MB | 73 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [NAOYUKI KATO](https://appshunter.io/developer/1884603069) | [Codi10](https://appshunter.io/developer/1505746365) |

## What reviewers say

### Fitzy AI

[App page](https://appshunter.io/ios/app/fitzy-ai/id6770579832)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fitzy Pro Monthly Plan | $3.99 | per month |
| Fity Pro Yearly Plan | $39.99 | per year |


### Brenzo

[App page](https://appshunter.io/ios/app/brenzo-workout-tracker/id6770596076)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brenzo Pro Mensual | $3.99 | per month |
| Brenzo Pro Monthly | $3.99 | per month |
| Brenzo Pro Anual | $34.99 | per year |
| Brenzo Pro Annual | $34.99 | per year |


## Frequently asked questions

### Is Fitzy AI free?

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

### Is Brenzo free?

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

### Do Fitzy AI or Brenzo have ads?

Neither Fitzy AI nor Brenzo shows ads.

### Which is updated more often, Fitzy AI or Brenzo?

Fitzy AI ships an update every 9 days, and Brenzo every 2 weeks. Most recently, Fitzy AI was updated on September 11, 2026 and Brenzo on September 10, 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.*