# mKer vs Know the Notes

The clearest difference is price: Know the Notes at $1.99 against mKer's $3.99. Know the Notes also leads on device support (3 vs 1). mKer's advantage is iOS requirement (13.0 vs 15.1). On update cadence, ads and in-app purchases there is nothing between them.

mKer costs $3.99 and Know the Notes $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

mKer ships an update every 3 weeks, Know the Notes fortnightly. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | mKer | Know the Notes |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/mker/id1635296839/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Paid | — |
| Size | 57 MB | 26 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Axart Labs OU](https://appshunter.io/developer/1814434331) | [DAVID MAYR LERNER](https://appshunter.io/developer/1877367513) |

## What reviewers say

### mKer

[App page](https://appshunter.io/ios/app/mker/id1635296839)

A versatile MIDI step sequencer designed for music creation. It offers multiple outputs, extensive pattern and lane customization, and advanced step editing. Best used within an AUv3 host app for sound generation.

**Highlights:** 8 MIDI outputs, 64 Patterns with 16 Lanes each, Customizable Steps and Step Size per Lane, Advanced Step Parameters (Pitch, Velocity, Probability, etc.), Flexible Editor with Step Entry Keyboard, 32 Clips with Repeat Functionality, Performance Tab with Assignable Sliders and Morphing

**Features:** macOS Compatibility

**In-app purchases:** none


### Know the Notes

[App page](https://appshunter.io/ios/app/know-the-notes/id6759197678)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is mKer free?

mKer costs $3.99, with no in-app purchases.

### Is Know the Notes free?

Know the Notes costs $1.99, with no in-app purchases.

### Do mKer or Know the Notes have ads?

Neither mKer nor Know the Notes shows ads.

### Which is updated more often, mKer or Know the Notes?

mKer ships an update every 3 weeks, and Know the Notes fortnightly. Most recently, mKer was updated on October 6, 2026 and Know the Notes on October 2, 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.*