# ID700 vs RK

The clearest difference is price: RK at Free against ID700's $12.99. RK also leads on rating (5.0 vs 4.8) and device support (3 vs 1). ID700's advantage is update cadence (monthly vs every 5 months) and review sentiment (88% vs 67%). On ads, in-app purchases and iOS requirement there is nothing between them.

RK is free to download; ID700 costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RK holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ID700 has 128 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 88% of ID700's written reviews are positive against 67% of RK's, so the app with the better star average is not the one people write more warmly about.

ID700 ships an update monthly, RK every 5 months. The most recent releases landed on August 13, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | ID700 | RK |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.8 (128 ratings)](https://appshunter.io/ios/app/id700/id1482698043/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/rk-006/id1516602717/reviews)** |
| Number of ratings | **128** | 9 |
| Positive reviews | **87.5% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Paid | **Free** |
| Size | 51 MB | 3 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Schatz](https://appshunter.io/developer/1482698042) | [Gerrit Dijkstra](https://appshunter.io/developer/437476213) |

## What reviewers say

### ID700

[App page](https://appshunter.io/ios/app/id700/id1482698043)

This app is a software synthesizer that recreates the voice architecture of the Buchla 700. It offers hybrid FM and waveshaping synthesis with extensive customization options for sound design. It functions as a standalone app or an AUv3 plugin for music production software.

**Highlights:** Hybrid FM and waveshaping synthesis, AUv3 and Standalone support, Twelve voices with unique algorithms, Fourteen complex envelopes per voice, Two waveshapers per voice, MPE capability, Scala scale file support

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ID700 free?

ID700 costs $12.99, with no in-app purchases.

### Is RK free?

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

### Which has better reviews, ID700 or RK?

RK is rated higher. ID700 averages 4.8 out of 5 from 128 ratings, while RK averages 5.0 from 9 ratings.

### Do ID700 or RK have ads?

Neither ID700 nor RK shows ads.

### Which is updated more often, ID700 or RK?

ID700 ships an update monthly, and RK every 5 months. Most recently, ID700 was updated on August 13, 2026 and RK on July 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*