# Proof Audio Analyzer vs Redlined

Proof Audio Analyzer and Redlined are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Proof Audio Analyzer sells 1 one-off in-app purchase and Redlined sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Proof Audio Analyzer | Redlined |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Size | 6 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Warren Labs](https://appshunter.io/developer/6792763836) | [Jordan Jimenez](https://appshunter.io/developer/6815387050) |

## What reviewers say

### Proof Audio Analyzer

[App page](https://appshunter.io/ios/app/proof-audio-analyzer/id6813702023)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Measuring | $79.00 | one-time |


### Redlined

[App page](https://appshunter.io/ios/app/redlined/id6815387048)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Redlined Unlimited | $2.99 | one-time |


## Frequently asked questions

### Is Proof Audio Analyzer free?

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

### Is Redlined free?

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

### Do Proof Audio Analyzer or Redlined have ads?

Neither Proof Audio Analyzer nor Redlined shows ads.

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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.*