# Instant Memo vs Useful Lock Screen Memo

The clearest difference is in-app purchases: Instant Memo at none against Useful Lock Screen Memo's 1. Instant Memo also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Useful Lock Screen Memo sells 1 one-off in-app purchase. Instant Memo asks for nothing beyond the download.

Instant Memo ships an update every 4 days, Useful Lock Screen Memo weekly. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Instant Memo | Useful Lock Screen Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Size | 5 MB | 118 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [joonseo park](https://appshunter.io/developer/1265149051) | [katapu.net](https://appshunter.io/developer/381898924) |

## What reviewers say

### Instant Memo

[App page](https://appshunter.io/ios/app/instant-memo-notes-and-widgets/id6773642635)

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

**In-app purchases:** none


### 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 Instant Memo free?

Instant Memo is free to download, with no in-app purchases.

### Is Useful Lock Screen Memo free?

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

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

Both Instant Memo and Useful Lock Screen Memo show ads.

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

Instant Memo ships an update every 4 days, and Useful Lock Screen Memo weekly. Most recently, Instant Memo was updated on October 16, 2026 and Useful Lock Screen Memo on October 12, 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.*