# Onyx Coach vs MB App

The clearest difference is in-app purchases: MB App at none against Onyx Coach's 6. Onyx Coach's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Onyx Coach sells 6 in-app purchases, starting at $9.99 per month. MB App asks for nothing beyond the download.

Onyx Coach ships an update every 9 days, MB App every 3 weeks. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Onyx Coach | MB App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/onyx-coach-workout-tracker/id6737855506/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 149 MB | 32 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Coachito LLC](https://appshunter.io/developer/1873867082) | [Martin Babinec](https://appshunter.io/developer/1889839563) |

## What reviewers say

### Onyx Coach

[App page](https://appshunter.io/ios/app/onyx-coach-workout-tracker/id6737855506)

This app helps you plan and track your strength training workouts with pre-built programs and a fast logging system. It's designed to help you master progressive overload and visualize your gains, replacing paper journals and spreadsheets.

**Highlights:** Pre-built gym routines, Custom workout builder, Fast workout logging, Progressive overload tracking, Rest timer, Plate calculator

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onyx Coach Premium (Monthly) | $9.99 | per month |
| Onyx Coach Premium (Monthly) | $9.99 | per month |
| Premium Monthly | $9.99 | per month |
| Onyx Coach Premium (Six months) | $64.99 | per 6 months |
| Onyx Coach Premium (Yearly) | $79.00 | per year |
| Premium Yearly | $79.00 | per year |


### MB App

[App page](https://appshunter.io/ios/app/mb-app/id6769773861)

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

**In-app purchases:** none


## Frequently asked questions

### Is Onyx Coach free?

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

### Is MB App free?

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

### Do Onyx Coach or MB App have ads?

Neither Onyx Coach nor MB App shows ads.

### Which is updated more often, Onyx Coach or MB App?

Onyx Coach ships an update every 9 days, and MB App every 3 weeks. Most recently, Onyx Coach was updated on October 24, 2026 and MB App on October 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.*