# Rock Drum Machine vs OMB

The clearest difference is review sentiment: Rock Drum Machine at 92% against OMB's 33%. Rock Drum Machine also leads on rating (4.7 vs 3.5) and ratings volume (523 vs 18). OMB's advantage is price (Free vs $17.99) and in-app purchases (none vs 2). On ads and device support there is nothing between them.

OMB is free to download; Rock Drum Machine costs $17.99 up front. Rock Drum Machine sells 2 one-off in-app purchases. OMB asks for nothing beyond the download.

Rock Drum Machine holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Rock Drum Machine has 523 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 92% of Rock Drum Machine's written reviews are positive against 33% of OMB's.

Rock Drum Machine ships an update every 3 weeks, OMB every 6 days. The most recent releases landed on September 25, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Rock Drum Machine | OMB |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[4.7 (523 ratings)](https://appshunter.io/ios/app/rock-drum-machine/id725234217/reviews)** | [3.5 (18 ratings)](https://appshunter.io/ios/app/omb/id1440465420/reviews) |
| Number of ratings | **523** | 18 |
| Positive reviews | **92.1% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#174** | — |
| Size | 233 MB | 74 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lumbeat](https://appshunter.io/developer/590278231) | [OMB](https://appshunter.io/developer/1440465419) |

## What reviewers say

### Rock Drum Machine

[App page](https://appshunter.io/ios/app/rock-drum-machine/id725234217)

**Currently charting:** #174 Top Paid · Music (US App Store)

Transform your device into a powerful rock drumming tool with realistic sounds and a vast library of rhythms. Easily create custom beats, jam with AI-generated grooves, and integrate with other music apps. Export your creations as audio or MIDI files.

**Highlights:** AI-powered rock drumming, Adjustable jam level and intensity, Live Pads with assignable controls, MIDI out and Ableton Link synchronization, Song Mode for creating drum tracks, Custom rhythm editing, Four built-in effects

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mike | $4.99 | one-time |
| John | $4.99 | one-time |

**What reviewers like**

- 👍 Great sound quality
- 🚀 Easy to use and program
- 🎨 Lots of customization options
- 🎛️ Intuitive interface
- 🎶 Realistic drum sounds

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔌 MIDI integration issues
- 🤔 Steep learning curve for some
- 💰 Expensive compared to other options
- 🔇 Limited drum kit selection

**Reported bugs**

- Crashes when exporting audio
- MIDI out not working as expected
- Saving new patterns can be inconsistent
- Occasional UI glitches or freezes

**Requested features**

- Add more drum kits and styles
- Improve MIDI support and control
- Implement AUv3 support
- Add more customization options
- Provide better documentation and tutorials


### OMB

[App page](https://appshunter.io/ios/app/omb/id1440465420)

This music app allows users to add auto accompaniment with various styles and tempos, play solo with a selection of instruments, and view chords. It offers hands-free control and recording capabilities for a unique playing experience.

**Highlights:** Auto accompaniment with style and tempo selection, Downloadable styles from online store, Play solo with a wide selection of instruments, Displays chords being played, Records user performances, Hands-free control with foot pedal

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rock Drum Machine free?

Rock Drum Machine costs $17.99, and also offers in-app purchases.

### Is OMB free?

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

### Which has better reviews, Rock Drum Machine or OMB?

Rock Drum Machine is rated higher. Rock Drum Machine averages 4.7 out of 5 from 523 ratings, while OMB averages 3.5 from 18 ratings.

### Do Rock Drum Machine or OMB have ads?

Neither Rock Drum Machine nor OMB shows ads.

### Which is updated more often, Rock Drum Machine or OMB?

Rock Drum Machine ships an update every 3 weeks, and OMB every 6 days. Most recently, Rock Drum Machine was updated on September 25, 2026 and OMB on July 7, 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.*