# K.O. II vs What About Phase?

The clearest difference is in-app purchases: K.O. II at none against What About Phase?'s 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. What About Phase? sells 2 one-off in-app purchases. K.O. II asks for nothing beyond the download.

## The numbers

| Metric | K.O. II | What About Phase? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/what-about-phase/id6785542900/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Monetization | — | Free |
| Size | 1 MB | 21 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [海洋 符](https://appshunter.io/developer/1763768138) | [Vladimir Gusev](https://appshunter.io/developer/963910848) |

## What reviewers say

### K.O. II

[App page](https://appshunter.io/ios/app/ko-ii/id6781550924)

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

**In-app purchases:** none


### What About Phase?

[App page](https://appshunter.io/ios/app/what-about-phase/id6785542900)

Record short audio clips and transform them into evolving, hypnotic soundscapes. This pocket instrument uses phasing and other processes to create unique, unfolding audio patterns from simple sounds.

**Highlights:** Audio recording and looping, Ten distinct audio processes, Radial display of sound patterns, On-device pitch detection, Save, share, and revert recordings, Live control over audio parameters

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |
| Pro | $3.99 | one-time |


## Frequently asked questions

### Is K.O. II free?

K.O. II is free to download, with no in-app purchases.

### Is What About Phase? free?

What About Phase? is free to download, with in-app purchases available.

### Do K.O. II or What About Phase? have ads?

Neither K.O. II nor What About Phase? shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*