# TestPrep WiZ vs ProperSound

The clearest difference is iOS requirement: TestPrep WiZ at 15.5 against ProperSound's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TestPrep WiZ sells 10 one-off in-app purchases and ProperSound sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | TestPrep WiZ | ProperSound |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 147 MB | 606 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [Yonghao Xu](https://appshunter.io/developer/1896473497) |

## What reviewers say

### TestPrep WiZ

[App page](https://appshunter.io/ios/app/testprep-wiz/id6749762104)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AW | $39.99 | one-time |
| Package - AZ | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BC | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - BB | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BH | $49.99 | one-time |
| Package - BG | $49.99 | one-time |
| Package - BF | $49.99 | one-time |


### ProperSound

[App page](https://appshunter.io/ios/app/propersound/id6774977507)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $8.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Family | $49.99 | per year |


## Frequently asked questions

### Is TestPrep WiZ free?

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

### Is ProperSound free?

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

### Do TestPrep WiZ or ProperSound have ads?

Neither TestPrep WiZ nor ProperSound 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.*