# Cozip vs Useful Lock Screen Memo

The clearest difference is ads: Cozip at none against Useful Lock Screen Memo's shown. Cozip also leads on iOS requirement (15.6 vs 26.0). Useful Lock Screen Memo's advantage is update cadence (weekly vs every 6 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Cozip sells 2 in-app purchases, starting at $0.99 per month and Useful Lock Screen Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cozip ships an update every 6 weeks, Useful Lock Screen Memo weekly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Cozip | Useful Lock Screen Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 15 MB | 118 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [胜海 李](https://appshunter.io/developer/1896369915) | [katapu.net](https://appshunter.io/developer/381898924) |

## What reviewers say

### Cozip

[App page](https://appshunter.io/ios/app/cozip/id6767206411)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $5.99 | per year |


### Useful Lock Screen Memo

[App page](https://appshunter.io/ios/app/useful-lock-screen-memo/id6799839918)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is Cozip free?

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

### Is Useful Lock Screen Memo free?

Useful Lock Screen Memo is free to download, with in-app purchases available.

### Do Cozip or Useful Lock Screen Memo have ads?

Useful Lock Screen Memo shows ads; Cozip does not.

### Which is updated more often, Cozip or Useful Lock Screen Memo?

Cozip ships an update every 6 weeks, and Useful Lock Screen Memo weekly. Most recently, Cozip was updated on October 28, 2026 and Useful Lock Screen Memo on October 29, 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.*