# Cat Liquid vs Memory AI

The clearest difference is ads: Memory AI at none against Cat Liquid's shown. Memory AI also leads on update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Cat Liquid sells 2 one-off in-app purchases and Memory AI sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Cat Liquid ships an update monthly, Memory AI every 3 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cat Liquid | Memory AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Size | 137 MB | 59 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Okada](https://appshunter.io/developer/1793725878) | [Du Dai](https://appshunter.io/developer/1854781140) |

## What reviewers say

### Cat Liquid

[App page](https://appshunter.io/ios/app/cat-liquid-picture-matching/id6751223280)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |
| Remove Ads | $0.49 | one-time |


### Memory AI

[App page](https://appshunter.io/ios/app/memory-ai-master-knowledge/id6755601288)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memory AI Pro Weekly | $4.99 | per 7 days |
| Memory AI Pro Yearly Discount | $49.99 | per year |
| Memory AI Pro Yearly | $99.99 | per year |
| Memory AI Pro Yearly | $99.99 | per year |


## Frequently asked questions

### Is Cat Liquid free?

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

### Is Memory AI free?

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

### Do Cat Liquid or Memory AI have ads?

Cat Liquid shows ads; Memory AI does not.

### Which is updated more often, Cat Liquid or Memory AI?

Cat Liquid ships an update monthly, and Memory AI every 3 days. Most recently, Cat Liquid was updated on November 5, 2026 and Memory AI on October 30, 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.*