# SoundScope vs SUS4 Mix Check

The clearest difference is update cadence: SUS4 Mix Check at fortnightly against SoundScope's monthly. SUS4 Mix Check also leads on iOS requirement (16.0 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SoundScope sells 1 one-off in-app purchase and SUS4 Mix Check sells 10 in-app purchases, starting at $4.39 per month. Whichever you choose, the download price is not the number that matters.

SoundScope ships an update monthly, SUS4 Mix Check fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SoundScope | SUS4 Mix Check |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 12 MB | 28 MB |
| Requires iOS | 26.1 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Waldemar Schneider](https://appshunter.io/developer/1859657539) | [ThePaulSmith](https://appshunter.io/developer/319584506) |

## What reviewers say

### SoundScope

[App page](https://appshunter.io/ios/app/soundscope-light/id6775629353)

This app provides real-time audio spectrum analysis with detailed visualizations. It offers advanced features for monitoring stereo width, phase correlation, and system audio, designed for professional audio work.

**Highlights:** Real-time FFT spectrum analysis, Frequency bars and line graph visualizations, Logarithmic and linear frequency scaling, Stereo, Mid/Side, and Phase Correlation analysis, System audio loopback, Microphone and audio interface input

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundScope | $3.99 | one-time |


### SUS4 Mix Check

[App page](https://appshunter.io/ios/app/sus4-mix-check-mix-analyzer/id6777229916)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SUS4 All-Access | $4.39 | per month |
| SUS4 All-Access | $5.99 | per month |
| SUS4 All-Access | $7.99 | per month |
| SUS4 All-Access Annual | $19.99 | per year |
| SUS4 All-Access Annual | $26.99 | per year |
| SUS4 All-Access Annual | $35.99 | per year |
| SUS4 All-Access Annual | $51.99 | per year |
| SUS4 Mix Check Lifetime | $54.99 | one-time |
| SUS4 Mix Check Lifetime | $71.99 | one-time |
| SUS4 Mix Check Lifetime | $103.99 | one-time |


## Frequently asked questions

### Is SoundScope free?

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

### Is SUS4 Mix Check free?

SUS4 Mix Check is free to download, with in-app purchases available.

### Do SoundScope or SUS4 Mix Check have ads?

Neither SoundScope nor SUS4 Mix Check shows ads.

### Which is updated more often, SoundScope or SUS4 Mix Check?

SoundScope ships an update monthly, and SUS4 Mix Check fortnightly. Most recently, SoundScope was updated on October 31, 2026 and SUS4 Mix Check on November 5, 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.*