# Memo vs Cube4Sol

The clearest difference is in-app purchases: Memo at none against Cube4Sol's 1. Memo also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Cube4Sol sells 1 one-off in-app purchase. Memo asks for nothing beyond the download.

Memo ships an update weekly, Cube4Sol every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Memo | Cube4Sol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Size | 25 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sedong Choi](https://appshunter.io/developer/1864290280) | [Wonhong Kwon](https://appshunter.io/developer/6779501387) |

## What reviewers say

### Memo

[App page](https://appshunter.io/ios/app/memo-tap/id6792246526)

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

**In-app purchases:** none


### Cube4Sol

[App page](https://appshunter.io/ios/app/cube4sol/id6792941337)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Memo free?

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

### Is Cube4Sol free?

Cube4Sol is free to download, with in-app purchases available.

### Do Memo or Cube4Sol have ads?

Both Memo and Cube4Sol show ads.

### Which is updated more often, Memo or Cube4Sol?

Memo ships an update weekly, and Cube4Sol every 4 days. Most recently, Memo was updated on October 31, 2026 and Cube4Sol on October 31, 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.*