# 4trMTR vs わおん

The clearest difference is price: わおん at Free against 4trMTR's $0.99. わおん also leads on update cadence (every 6 days vs every 3 weeks). 4trMTR's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

わおん is free to download; 4trMTR costs $0.99 up front. わおん sells 1 one-off in-app purchase. 4trMTR asks for nothing beyond the download.

4trMTR ships an update every 3 weeks, わおん every 6 days. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 4trMTR | わおん |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 12 MB | 4 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [YUKIO TOKIWA](https://appshunter.io/developer/6776055556) | [Kengo Ichiki](https://appshunter.io/developer/6795827433) |

## What reviewers say

### 4trMTR

[App page](https://appshunter.io/ios/app/4trmtr/id6776449627)

Record and layer multiple musical performances one track at a time to create a complete song. Easily manage your projects by saving, loading, and creating new ones through a simple tap interface.

**Highlights:** Four-track recording, Layered performances, Project saving, Project loading, New project creation

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

**In-app purchases:** none


### わおん

[App page](https://appshunter.io/ios/app/music-transcriber/id6795827431)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| わおん Full Unlock | $34.99 | one-time |


## Frequently asked questions

### Is 4trMTR free?

4trMTR costs $0.99, with no in-app purchases.

### Is わおん free?

わおん is free to download, with in-app purchases available.

### Do 4trMTR or わおん have ads?

Neither 4trMTR nor わおん shows ads.

### Which is updated more often, 4trMTR or わおん?

4trMTR ships an update every 3 weeks, and わおん every 6 days. Most recently, 4trMTR was updated on October 25, 2026 and わおん on October 21, 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.*