# ChordPolyPad vs RSTLSS

The clearest difference is price: RSTLSS at Free against ChordPolyPad's $17.99. RSTLSS also leads on in-app purchases (none vs 3). ChordPolyPad's advantage is device support (4 vs 2). On review sentiment, update cadence, ads and iOS requirement there is nothing between them.

RSTLSS is free to download; ChordPolyPad costs $17.99 up front. ChordPolyPad sells 3 one-off in-app purchases. RSTLSS asks for nothing beyond the download.

ChordPolyPad ships an update every 2 months, RSTLSS monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChordPolyPad | RSTLSS |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[4.6 (51 ratings)](https://appshunter.io/ios/app/chordpolypad/id694599930/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 92.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 54 MB | 57 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Laurent Colson](https://appshunter.io/developer/381525765) | [RSTLSS](https://appshunter.io/developer/1658552564) |

## What reviewers say

### ChordPolyPad

[App page](https://appshunter.io/ios/app/chordpolypad/id694599930)

This app is a versatile MIDI chord player that allows users to create and play complex chord sets. It offers extensive customization for pads, MIDI controls, and chord generation, functioning as a standalone app or an AUv3 MIDI effect plugin.

**Highlights:** Standalone app and AUv3 MIDI effect plugin, 128 pads per preset, Customizable X/Y MIDI controllers, Advanced random chord generator, Internal and external MIDI support, Chord filtering and quantizing, Preset manager with in-app purchases

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retro Pop | $4.99 | one-time |
| Clubwave | $4.99 | one-time |
| Liminal Spaces | $4.99 | one-time |


### RSTLSS

[App page](https://appshunter.io/ios/app/rstlss/id1658552562)

This app offers a 24/7 live radio stream dedicated to rock and metal music, featuring new discoveries, international artists, and essential classics. It also includes podcasts, news, and videos related to the rock scene.

**Highlights:** 24/7 live rock and metal radio stream, Podcasts and dedicated shows, Rock music news and album reviews, Music videos and interviews, Song title and album art display, Offline listening for podcasts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChordPolyPad free?

ChordPolyPad costs $17.99, and also offers in-app purchases.

### Is RSTLSS free?

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

### Do ChordPolyPad or RSTLSS have ads?

Neither ChordPolyPad nor RSTLSS shows ads.

### Which is updated more often, ChordPolyPad or RSTLSS?

ChordPolyPad ships an update every 2 months, and RSTLSS monthly. Most recently, ChordPolyPad was updated on October 23, 2026 and RSTLSS 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.*