# MuscleLab vs KOBP Strength

The clearest difference is in-app purchases: MuscleLab at none against KOBP Strength's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KOBP Strength sells 2 in-app purchases, starting at $6.99 per month. MuscleLab asks for nothing beyond the download.

MuscleLab ships an update weekly, KOBP Strength every 6 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | MuscleLab | KOBP Strength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kobp-strength/id6761443268/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 30 MB | 38 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 12+ |
| Developer | [Ilya Valasiuk](https://appshunter.io/developer/1861559036) | [BRIAN PEREZ](https://appshunter.io/developer/1889682804) |

## What reviewers say

### MuscleLab

[App page](https://appshunter.io/ios/app/musclelab/id6756586925)

**Features:** macOS Compatibility

**In-app purchases:** none


### KOBP Strength

[App page](https://appshunter.io/ios/app/kobp-strength/id6761443268)

This app is designed for serious lifters to track every set, see global rankings, and receive AI-powered coaching based on actual performance data. It offers detailed progress charts, custom lift logging, and a unique session sharing feature.

**Highlights:** Log every set, rep, and weight, Strength percentile rankings, AI-powered personalized coaching, Global leaderboard and competitor import, Shareable session summary cards, Import training history from any format

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KOBP Fitness Premium-monthly | $6.99 | per month |
| KOBP Fitness Premium-Annual | $49.99 | per year |


## Frequently asked questions

### Is MuscleLab free?

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

### Is KOBP Strength free?

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

### Do MuscleLab or KOBP Strength have ads?

Neither MuscleLab nor KOBP Strength shows ads.

### Which is updated more often, MuscleLab or KOBP Strength?

MuscleLab ships an update weekly, and KOBP Strength every 6 days. Most recently, MuscleLab was updated on November 5, 2026 and KOBP Strength on November 5, 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.*