# CanSeeVoice vs 4trMTR

The clearest difference is price: CanSeeVoice at Free against 4trMTR's $0.99. CanSeeVoice also leads on iOS requirement (15.6 vs 17.6). 4trMTR's advantage is update cadence (every 3 weeks vs every 5 months). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

CanSeeVoice is free to download; 4trMTR costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CanSeeVoice ships an update every 5 months, 4trMTR every 3 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | CanSeeVoice | 4trMTR |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/canseevoice/id1093685818/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 12 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yo muneta](https://appshunter.io/developer/1093685817) | [YUKIO TOKIWA](https://appshunter.io/developer/6776055556) |

## What reviewers say

### CanSeeVoice

[App page](https://appshunter.io/ios/app/canseevoice/id1093685818)

This app visualizes your voice's frequency and amplitude using wave and FFT graphs. It includes a piano keyboard to help you match vocal pitches and offers recording, playback, and noise rejection features. Adjust system volume and explore various graph displays for detailed audio analysis.

**Highlights:** Fundamental frequency display, Wave and FFT graph visualization, Recording and playback, Piano keyboard sound output, Noise rejection, System volume control

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is CanSeeVoice free?

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

### Is 4trMTR free?

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

### Do CanSeeVoice or 4trMTR have ads?

Neither CanSeeVoice nor 4trMTR shows ads.

### Which is updated more often, CanSeeVoice or 4trMTR?

CanSeeVoice ships an update every 5 months, and 4trMTR every 3 weeks. Most recently, CanSeeVoice was updated on October 9, 2026 and 4trMTR on October 6, 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.*