# Visualised Audio vs CA PRO DSP

The clearest difference is in-app purchases: CA PRO DSP at none against Visualised Audio's 3. CA PRO DSP also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Visualised Audio sells 3 one-off in-app purchases. CA PRO DSP asks for nothing beyond the download.

Visualised Audio ships an update every 14 months, CA PRO DSP every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Visualised Audio | CA PRO DSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/visualised-audio/id1111275756/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 3 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Magnus Olsson](https://appshunter.io/developer/955492390) | [文胜 周](https://appshunter.io/developer/1247796141) |

## What reviewers say

### Visualised Audio

[App page](https://appshunter.io/ios/app/visualised-audio/id1111275756)

This app analyzes single musical notes, displaying their pitch and visualizing harmonics. It helps musicians refine their playing technique by showing accuracy to pitch and the subtle differences in instrument sound through harmonic analysis. It requires microphone access and a quiet environment for optimal performance.

**Highlights:** Monophonic pitch detection, Note and harmonic visualization, Playing technique fine-tuning, Harmonic analysis of instruments, Practice aid for scales, Adjustable sensitivity slider

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $0.49 | one-time |
| Medium tip | $1.99 | one-time |
| Large tip | $3.99 | one-time |


### CA PRO DSP

[App page](https://appshunter.io/ios/app/ca-pro-dsp/id6755802167)

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

**In-app purchases:** none


## Frequently asked questions

### Is Visualised Audio free?

Visualised Audio is free to download, with in-app purchases available.

### Is CA PRO DSP free?

CA PRO DSP is free to download, with no in-app purchases.

### Do Visualised Audio or CA PRO DSP have ads?

Neither Visualised Audio nor CA PRO DSP shows ads.

### Which is updated more often, Visualised Audio or CA PRO DSP?

Visualised Audio ships an update every 14 months, and CA PRO DSP every 2 months. Most recently, Visualised Audio was updated on November 2, 2026 and CA PRO DSP on October 30, 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.*