# Master MOI vs Rock 101 Online

The clearest difference is update cadence: Master MOI at every 5 days against Rock 101 Online's every 10 months. Master MOI also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Master MOI ships an update every 5 days, Rock 101 Online every 10 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Master MOI | Rock 101 Online |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 months |
| Size | 34 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Media, Marketing, Knowledge Group](https://appshunter.io/developer/590268970) | [LOPICONCEPTO, S.A. DE C.V.](https://appshunter.io/developer/614743233) |

## What reviewers say

### Master MOI

[App page](https://appshunter.io/ios/app/master-moi/id6468611181)

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

**In-app purchases:** none


### Rock 101 Online

[App page](https://appshunter.io/ios/app/rock-101-online/id6741776286)

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

**In-app purchases:** none


## Frequently asked questions

### Is Master MOI free?

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

### Is Rock 101 Online free?

Rock 101 Online is free to download, with no in-app purchases.

### Do Master MOI or Rock 101 Online have ads?

Neither Master MOI nor Rock 101 Online shows ads.

### Which is updated more often, Master MOI or Rock 101 Online?

Master MOI ships an update every 5 days, and Rock 101 Online every 10 months. Most recently, Master MOI was updated on October 4, 2026 and Rock 101 Online on October 1, 2026.

---

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