Comparison

Calculator Widget + vs Rub Memo

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Calculator Widget +

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Experience the Convenience of a Calculator right at your Home Screen or your MagSafe charger. No need to open a separated app for just a simple calculation. Key Features: - Interactive Widget - Standby Mode Calculator - Transparent Background Widget - Track History

About

Rub Memo

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
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β–  Erase with Your Finger Turn on β€œEraser” in the toolbar, then trace over the text you want to remove. Erase one character at a time without selecting a range. Rewrite as easily as rubbing out pencil marks on paper. If you erase too much, tap β€œUndo” to bring it back. β–  Meet Your Walking Cat A pixel-art cat strolls around your note screen. Choose from Calico, Black, or Robot, and enjoy 38 animations, including walking, jumping, and relaxing. Tap the cat to make it move out of your way. You can also turn it off in Settings. β–  Home Screen Widget Check the last note you opened right from your Home Screen. Tap the widget to open that note instantly. β–  More Features β€’ Touch and hold paragraphs to move and reorder them β€’ Insert tables, checklists, images, and hand-drawn sketches β€’ Use the eraser to remove inserted items, including tables and images β€’ Search all your notes with matching text highlighted β€’ Lock individual notes with Face ID / Touch ID β€’ Export and share notes as PDFs β€’ Switch between Japanese and English β€’ Adjust text size, fonts, ruled lines, and eraser width β–  No Ads, No In-App Purchases, No Account Required The app does not collect your data. Your notes are stored on your device and are never sent to external servers by the app.

Screenshots

Calculator Widget +4 screens
Rub Memo4 screens

Verdict

The call

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.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences Β· 6 level
Calculator Widget + versus Rub Memo: the parameters behind the verdict, then further details
ParameterCalculator Widget +Rub Memo
Price$0.99Free β€” better
Positive reviewsβ€”100.0% of reviews
Update frequencyDaily β€” betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPad β€” betteriPhone
Requires iOS17.016.0 β€” better
Further details β€” not scored
Size6 MB14 MB
Age rating4+4+
DeveloperBesiness Pte. Ltd.seiji honda

In-app purchases

None

Calculator Widget +

No in-app purchases

None

Rub Memo

No in-app purchases

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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