# RK vs MolliLooper

The clearest difference is price: RK at Free against MolliLooper's $8.99. MolliLooper's advantage is review sentiment (82% vs 67%) and update cadence (every 2 months vs every 5 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

RK is free to download; MolliLooper costs $8.99 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 — 5.0 for RK against 5.0 for MolliLooper. Both are backed by a comparable volume of ratings — 9 and 13 respectively. Written reviews are what separate them: 67% of RK's written reviews are positive against 82% of MolliLooper's.

RK ships an update every 5 months, MolliLooper every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | RK | MolliLooper |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | [5.0 (9 ratings)](https://appshunter.io/ios/app/rk-006/id1516602717/reviews) | [5.0 (13 ratings)](https://appshunter.io/ios/app/mollilooper/id1622063262/reviews) |
| Number of ratings | 9 | **13** |
| Positive reviews | 66.7% of reviews | **81.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 9 MB |
| Requires iOS | 13.0 | **11** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gerrit Dijkstra](https://appshunter.io/developer/437476213) | [Oliver Greschke (DE)](https://appshunter.io/developer/505848000) |

## What reviewers say

### RK

[App page](https://appshunter.io/ios/app/rk-006/id1516602717)

Manage your RK006 Master Hub with this app. Design and save configurations, set up presets for event filtering, clock processing, and output modes. Connect your iOS device to MIDI, CV/Gate, and control it from your DAW.

**Highlights:** RK006 Master Hub management, MIDI, CV/Gate control, Preset design and saving, Event filtering, Clock processing, Output mode configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### MolliLooper

[App page](https://appshunter.io/ios/app/mollilooper/id1622063262)

This real-time stereo effect app allows for instant looping and filtering of audio. Designed for live performance, it continuously records input for immediate playback and offers adjustable loop timing synced to a host clock. It also features a resonant filter and stutter/freeze capabilities.

**Highlights:** Real-time stereo looping, Instant recording/looping, Host clock sync, Adjustable loop timing, Lowpass/highpass resonant filter, Stutter/freeze effect, AUv3 plugin support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RK free?

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

### Is MolliLooper free?

MolliLooper costs $8.99, with no in-app purchases.

### Which has better reviews, RK or MolliLooper?

RK and MolliLooper are both rated 5.0 out of 5 on the App Store, from 9 and 13 ratings respectively.

### Do RK or MolliLooper have ads?

Neither RK nor MolliLooper shows ads.

### Which is updated more often, RK or MolliLooper?

RK ships an update every 5 months, and MolliLooper every 2 months. Most recently, RK was updated on October 24, 2026 and MolliLooper on October 24, 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.*