# LINK_O vs mPB

The clearest difference is iOS requirement: LINK_O at 15.1 against mPB's 26.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LINK_O ships an update every 8 days, mPB every 11 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | LINK_O | mPB |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 56.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 11 days |
| Monetization | Ad-supported | — |
| Size | 67 MB | 1 MB |
| Requires iOS | **15.1** | 26.5 |
| Devices | iPhone, iPod | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [HIVIS.inc](https://appshunter.io/developer/1601345844) | [sungsu yi](https://appshunter.io/developer/6790928744) |

## What reviewers say

### LINK_O

[App page](https://appshunter.io/ios/app/link-o/id1601345842)

This app simplifies CrossFit box membership registration and class booking. It allows users to manage exercise records, track body composition, and discover local CrossFit events. Stay connected with your fitness community and streamline your gym experience.

**Highlights:** Quick CrossFit box registration, Instant class reservation, Exercise and WOD record management, Body composition tracking, Event discovery and participation

**Features:** macOS Compatibility

**In-app purchases:** none


### mPB

[App page](https://appshunter.io/ios/app/mpb/id6790928742)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LINK_O free?

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

### Is mPB free?

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

### Do LINK_O or mPB have ads?

Neither LINK_O nor mPB shows ads.

### Which is updated more often, LINK_O or mPB?

LINK_O ships an update every 8 days, and mPB every 11 days. Most recently, LINK_O was updated on October 30, 2026 and mPB on October 28, 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.*