# RK-601 — GATE2USB Editor

> GATE2USB Editor (iPhone/iPad app by Gerrit Dijkstra.)

- Source: https://appshunter.io/ios/app/rk-601/id6449847140 (this page in markdown: same URL + `.md`)
- Developer: [Gerrit Dijkstra](https://appshunter.io/developer/437476213)
- Category: Music, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 13.2 · 1 MB
- Languages: English
- Released: 2023-06-15
- Data updated: 2026-07-31
- User reviews in markdown: https://appshunter.io/ios/app/rk-601/id6449847140/reviews.md

## What is RK?

The RK-601 can convert tempo from gate pulses into MIDI clock so you can synchronise your music software to devices using a simple metronome output. In the RK-601 companion app you can set clock dividers, button response and MIDI start/stop message behaviour. The RK601 needs the Apple CCK on iOS devices with lighting connectors.


## Version history (last 1 release)

### 1.0 — 2023-06-15

No release notes.

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## More apps by Gerrit Dijkstra

- [RK-004](https://appshunter.io/ios/app/rk-004/id1184337550)
- [RK-006](https://appshunter.io/ios/app/rk-006/id1516602717)

All apps by Gerrit Dijkstra: https://appshunter.io/developer/437476213

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*