# メモリ電卓 vs Rub Memo

The clearest difference is in-app purchases: Rub Memo at none against メモリ電卓's 1. Rub Memo also leads on ads (none vs shown). メモリ電卓's advantage is device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. メモリ電卓 sells 1 one-off in-app purchase. Rub Memo asks for nothing beyond the download.

メモリ電卓 ships an update every 5 days, Rub Memo every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | メモリ電卓 | Rub Memo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | — | Free |
| Size | 23 MB | 14 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ITOTSUKA](https://appshunter.io/developer/1780261746) | [seiji honda](https://appshunter.io/developer/1896430544) |

## What reviewers say

### メモリ電卓

[App page](https://appshunter.io/ios/app/id6761058403)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の非表示 | $0.99 | one-time |


### Rub Memo

[App page](https://appshunter.io/ios/app/rub-memo/id6772340496)

This app allows you to erase text by rubbing your finger over it, mimicking the feel of erasing pencil on paper. It also offers a home screen widget for quick access, reordering paragraphs, and inserting various media like tables, checklists, and drawings.

**Highlights:** Erase text with finger rub, Home screen widget for notes, Reorder paragraphs by long-press and drop, Insert tables, checklists, images, and drawings, Full-text search with highlighted matches, Lock notes with Face ID/Touch ID, Export and share as PDF

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

**In-app purchases:** none


## Frequently asked questions

### Is メモリ電卓 free?

メモリ電卓 is free to download, with in-app purchases available.

### Is Rub Memo free?

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

### Do メモリ電卓 or Rub Memo have ads?

メモリ電卓 shows ads; Rub Memo does not.

### Which is updated more often, メモリ電卓 or Rub Memo?

メモリ電卓 ships an update every 5 days, and Rub Memo every 6 days. Most recently, メモリ電卓 was updated on October 24, 2026 and Rub Memo on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*