# BK Partner vs RRS Ivoks

The clearest difference is in-app purchases: BK Partner at none against RRS Ivoks's 1. BK Partner also leads on iOS requirement (8.1 vs 10.0). RRS Ivoks's advantage is update cadence (fortnightly vs every 12 months) and rating (4.4 vs 4.0). On price, review sentiment and ads there is nothing between them.

Both are free to download. RRS Ivoks sells 1 one-off in-app purchase. BK Partner asks for nothing beyond the download.

RRS Ivoks holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: RRS Ivoks has 46 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 61% of BK Partner's written reviews are positive against 63% of RRS Ivoks's.

BK Partner ships an update every 12 months, RRS Ivoks fortnightly. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BK Partner | RRS Ivoks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (6 ratings)](https://appshunter.io/ios/app/bk-partner/id591061937/reviews) | **[4.4 (46 ratings)](https://appshunter.io/ios/app/rrs-ivoks/id6443504248/reviews)** |
| Number of ratings | 6 | **46** |
| Positive reviews | 60.9% of reviews | **63.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 19 MB |
| Requires iOS | **8.1** | 10.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roland Corporation](https://appshunter.io/developer/387333694) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### BK Partner

[App page](https://appshunter.io/ios/app/bk-partner/id591061937)

Control your Roland BK-series instrument's sounds and accompaniments from your iPad. It mirrors the instrument's front panel for quick access to functions, tones, and rhythms. Supports Core MIDI and Roland Wireless Connection.

**Highlights:** Browse and select instrument tones, Control musical accompaniments, Duplicate instrument's front control panel on iPad, Fast visual access to main functions, Support for Core MIDI, Support for Roland Wireless Connection

**In-app purchases:** none


### RRS Ivoks

[App page](https://appshunter.io/ios/app/rrs-ivoks/id6443504248)

This app emulates analog synthesizers, offering a range of sound shaping tools including oscillators, filters, and amplifiers. It supports AUv3 hosting for integration with music production apps and provides extensive MIDI control.

**Highlights:** Analog Emulation, AUv3 Compatible, Dual Oscillators, Filter Block with ADSR, Amplifier Block with ADSR, Modulation (LFO) Controls, MIDI CC Implementation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS Ivoks Unlimited | $8.99 | one-time |


## Frequently asked questions

### Is BK Partner free?

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

### Is RRS Ivoks free?

RRS Ivoks is free to download, with in-app purchases available.

### Which has better reviews, BK Partner or RRS Ivoks?

RRS Ivoks is rated higher. BK Partner averages 4.0 out of 5 from 6 ratings, while RRS Ivoks averages 4.4 from 46 ratings.

### Do BK Partner or RRS Ivoks have ads?

Neither BK Partner nor RRS Ivoks shows ads.

### Which is updated more often, BK Partner or RRS Ivoks?

BK Partner ships an update every 12 months, and RRS Ivoks fortnightly. Most recently, BK Partner was updated on November 4, 2026 and RRS Ivoks on November 3, 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.*