# Calculator Widget + vs Rub Memo

The clearest difference is price: Rub Memo at Free against Calculator Widget +'s $0.99. Calculator Widget +'s advantage is update cadence (daily vs every 6 days). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Rub Memo is free to download; Calculator Widget + costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator Widget + ships an update daily, Rub Memo every 6 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calculator Widget + | Rub Memo |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 days |
| Monetization | — | Free |
| Size | 6 MB | 14 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Besiness Pte. Ltd.](https://appshunter.io/developer/1091968362) | [seiji honda](https://appshunter.io/developer/1896430544) |

## What reviewers say

### Calculator Widget +

[App page](https://appshunter.io/ios/app/calculator-widget-plus/id6470371780)

**In-app purchases:** none


### 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 Calculator Widget + free?

Calculator Widget + costs $0.99, with no in-app purchases.

### Is Rub Memo free?

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

### Do Calculator Widget + or Rub Memo have ads?

Neither Calculator Widget + nor Rub Memo shows ads.

### Which is updated more often, Calculator Widget + or Rub Memo?

Calculator Widget + ships an update daily, and Rub Memo every 6 days. Most recently, Calculator Widget + was updated on October 30, 2026 and Rub Memo 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.*