# FMB vs 75 Days Challenge

The clearest difference is in-app purchases: FMB at none against 75 Days Challenge's 1. 75 Days Challenge's advantage is update cadence (fortnightly vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 75 Days Challenge sells 1 one-off in-app purchase. FMB asks for nothing beyond the download.

FMB ships an update every 3 months, 75 Days Challenge fortnightly. The most recent releases landed on May 16, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | FMB | 75 Days Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.5 (15 ratings)](https://appshunter.io/ios/app/75-days-challenge/id6447800845/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 147 MB | 29 MB |
| Requires iOS | **11.4** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Fit Met Bruno B.V.](https://appshunter.io/developer/1580369729) | [Dmytro Shvaher](https://appshunter.io/developer/1774756591) |

## What reviewers say

### FMB

[App page](https://appshunter.io/ios/app/fmb/id1580369727)

**In-app purchases:** none


### 75 Days Challenge

[App page](https://appshunter.io/ios/app/75-days-challenge/id6447800845)

This app guides users through a 75-day personal growth journey focused on building mental toughness, self-discipline, and improving health. It helps track diet, exercise, water intake, reading, and daily progress photos.

**Highlights:** Customizable diet plan tracking, Daily exercise logging (indoor/outdoor), Water intake monitoring, Reading progress tracker, Daily progress photo documentation, Challenge reset reminder

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is FMB free?

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

### Is 75 Days Challenge free?

75 Days Challenge is free to download, with in-app purchases available.

### Which is updated more often, FMB or 75 Days Challenge?

FMB ships an update every 3 months, and 75 Days Challenge fortnightly. Most recently, FMB was updated on May 16, 2026 and 75 Days Challenge on August 23, 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.*