# Rub Memo vs 高機能な電卓

The clearest difference is iOS requirement: Rub Memo at 16.0 against 高機能な電卓's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rub Memo ships an update every 6 days, 高機能な電卓 every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Rub Memo | 高機能な電卓 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 14 MB | 3 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [seiji honda](https://appshunter.io/developer/1896430544) | [Koki Komatsu](https://appshunter.io/developer/1796307607) |

## What reviewers say

### 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


### 高機能な電卓

[App page](https://appshunter.io/ios/app/id6799535633)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rub Memo free?

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

### Is 高機能な電卓 free?

高機能な電卓 is free to download, with no in-app purchases.

### Do Rub Memo or 高機能な電卓 have ads?

Neither Rub Memo nor 高機能な電卓 shows ads.

### Which is updated more often, Rub Memo or 高機能な電卓?

Rub Memo ships an update every 6 days, and 高機能な電卓 every 2 weeks. Most recently, Rub Memo was updated on October 31, 2026 and 高機能な電卓 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.*