# 3 vs LockMemo

The clearest difference is in-app purchases: LockMemo at none against 3's 1. LockMemo also leads on update cadence (daily vs every 6 weeks). 3's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 3 sells 1 one-off in-app purchase. LockMemo asks for nothing beyond the download.

3 ships an update every 6 weeks, LockMemo daily. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 3 | LockMemo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 11 MB | 40 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Minje Kim](https://appshunter.io/developer/1889530864) | [Yui Sakamoto](https://appshunter.io/developer/1856050474) |

## What reviewers say

### 3

[App page](https://appshunter.io/ios/app/3-tap-memo-sticky-notes/id6761423321)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Samsepan Pro | $0.99 | one-time |


### LockMemo

[App page](https://appshunter.io/ios/app/lockmemo-simple/id6770174469)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3 free?

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

### Is LockMemo free?

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

### Do 3 or LockMemo have ads?

LockMemo shows ads; 3 does not.

### Which is updated more often, 3 or LockMemo?

3 ships an update every 6 weeks, and LockMemo daily. Most recently, 3 was updated on October 31, 2026 and LockMemo on October 28, 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.*