# Waller 4K vs RetouchAI

The clearest difference is update cadence: Waller 4K at every 2 weeks against RetouchAI's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Waller 4K sells 2 in-app purchases, starting at $2.99 per 7 days and RetouchAI sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Waller 4K ships an update every 2 weeks, RetouchAI monthly. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Waller 4K | RetouchAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 67 MB | 40 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nguyen Khac Tiep](https://appshunter.io/developer/1286629572) | [David Fernandez](https://appshunter.io/developer/1744156409) |

## What reviewers say

### Waller 4K

[App page](https://appshunter.io/ios/app/waller-4k/id6503128976)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Yearly Plan | $19.99 | per year |


### RetouchAI

[App page](https://appshunter.io/ios/app/retouchai/id6670794301)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 AI Tokens | $4.99 | one-time |
| 20 AI Tokens | $8.99 | one-time |
| 30 AI Tokens | $12.99 | one-time |


## Frequently asked questions

### Is Waller 4K free?

Waller 4K is free to download, with in-app purchases available.

### Is RetouchAI free?

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

### Do Waller 4K or RetouchAI have ads?

Neither Waller 4K nor RetouchAI shows ads.

### Which is updated more often, Waller 4K or RetouchAI?

Waller 4K ships an update every 2 weeks, and RetouchAI monthly. Most recently, Waller 4K was updated on October 9, 2026 and RetouchAI on October 27, 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.*