# RM vs mKer

The clearest difference is update cadence: mKer at every 3 weeks against RM's every 10 months. mKer also leads on price ($3.99 vs $9.99). RM's advantage is iOS requirement (9.0 vs 13.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

RM costs $9.99 and mKer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for RM against 4.5 for mKer. Both are backed by a comparable volume of ratings — 18 and 22 respectively. Written reviews are what separate them: 67% of RM's written reviews are positive against 64% of mKer's.

RM ships an update every 10 months, mKer every 3 weeks. The most recent releases landed on September 19, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | RM | mKer |
| --- | --- | --- |
| Price | $9.99 | **$3.99** |
| Rating | **[4.6 (18 ratings)](https://appshunter.io/ios/app/rm-1-wave-modulator/id1436855751/reviews)** | [4.5 (22 ratings)](https://appshunter.io/ios/app/mker/id1635296839/reviews) |
| Number of ratings | 18 | **22** |
| Positive reviews | **66.7% of reviews** | 63.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 35 MB | 57 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Axart Labs OU](https://appshunter.io/developer/1814434331) |

## What reviewers say

### RM

[App page](https://appshunter.io/ios/app/rm-1-wave-modulator/id1436855751)

This audio effect app offers versatile modulation capabilities, including ring, amplitude, phase, and frequency modulation. It features a built-in carrier oscillator, multimode filter, envelope follower, and LFO for creating unique sounds. It can be used standalone or with other audio apps.

**Highlights:** Multiple modulation types (Ring, AM, FM, Phase), Built-in carrier oscillator, Multimode filter (LP, HP, BP), Envelope follower and LFO, Standalone and IAA/Audiobus support, AUv3 plugin compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is RM free?

RM costs $9.99, with no in-app purchases.

### Is mKer free?

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

### Which has better reviews, RM or mKer?

RM is rated higher. RM averages 4.6 out of 5 from 18 ratings, while mKer averages 4.5 from 22 ratings.

### Do RM or mKer have ads?

Neither RM nor mKer shows ads.

### Which is updated more often, RM or mKer?

RM ships an update every 10 months, and mKer every 3 weeks. Most recently, RM was updated on September 19, 2026 and mKer on August 22, 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.*