# Protokl vs Mu.

The clearest difference is in-app purchases: Mu. at none against Protokl's 2. Protokl's advantage is update cadence (every 3 days vs every 10 days) and iOS requirement (15.1 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Protokl sells 2 in-app purchases, starting at $12.99 per month. Mu. asks for nothing beyond the download.

Protokl ships an update every 3 days, Mu. every 10 days. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Protokl | Mu. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 91 MB | 34 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Ryan Luther](https://appshunter.io/developer/1839697255) | [Liminal Pictures](https://appshunter.io/developer/1895974335) |

## What reviewers say

### Protokl

[App page](https://appshunter.io/ios/app/protokl/id6752530131)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protokl Pro Monthly | $12.99 | per month |
| Protokl Pro Annual | $119.00 | per year |


### Mu.

[App page](https://appshunter.io/ios/app/mu/id6766069551)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protokl free?

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

### Is Mu. free?

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

### Do Protokl or Mu. have ads?

Neither Protokl nor Mu. shows ads.

### Which is updated more often, Protokl or Mu.?

Protokl ships an update every 3 days, and Mu. every 10 days. Most recently, Protokl was updated on October 14, 2026 and Mu. on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*