Comparison

Customizable calculator 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

Customizable calculator

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β€œA Fun and Versatile Calculator App!” Make your daily calculations more enjoyable and convenient! From a simple, easy-to-use calculator to unique customizable themes, this app lets you calculate in your own style. Key Features Simple and Intuitive Basics Enjoy hassle-free basic operations like number entry, arithmetic calculations, and enhanced features like tax calculations and memo storage. Customizable Themes to Suit Your Mood Piano Calculator: Play Do-Re-Mi while you calculate and have fun creating melodies! Cat Calculator: Cute meows accompany every button press for a soothing experience. Cute Design Calculator: Bright and cheerful designs to keep your mood up. Sleek Calculator: A modern, minimal look perfect for business scenarios. More Unique Themes: Discover a variety of exciting styles! Enhanced Functionality for Efficiency Memo Feature: Save up to two results directly as notes for future reference. Tax Calculator: Easily calculate taxes with one tap. Switch between tax-inclusive and tax-exclusive views seamlessly. Clear Button: Reset or delete entries with ease. Exciting Updates Ahead! Regularly adding new themes and designs based on user feedback to make this app even more enjoyable and practical. Perfect for Those Who: Want a simple yet powerful calculator. Appreciate stylish designs and extra features. Wish to turn routine calculations into delightful moments. Download now and make your calculation time more fun and productive!

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

Customizable calculator4 screens
Rub Memo4 screens

Verdict

The call

The clearest difference is ads: Rub Memo at none against Customizable calculator's shown. Customizable calculator's advantage is update cadence (every 2 days vs every 6 days) and iOS requirement (13.0 vs 16.0). On price, in-app purchases and device support 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

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

UpkeepUpdate frequency

Customizable calculator ships an update every 2 days, Rub Memo every 6 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences Β· 5 level
Customizable calculator versus Rub Memo: the parameters behind the verdict, then further details
ParameterCustomizable calculatorRub Memo
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 2 days β€” betterEvery 6 days
AdsYesNo β€” better
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.0
Further details β€” not scored
Size202 MB14 MB
Age rating4+4+
DeveloperHisashi Yoshizawaseiji honda

In-app purchases

None

Customizable calculator

No in-app purchases

None

Rub Memo

No in-app purchases

Questions

Is Customizable calculator free?
Customizable calculator is free to download, with no in-app purchases.
Is Rub Memo free?
Rub Memo is free to download, with no in-app purchases.
Do Customizable calculator or Rub Memo have ads?
Customizable calculator shows ads; Rub Memo does not.
Which is updated more often, Customizable calculator or Rub Memo?
Customizable calculator ships an update every 2 days, and Rub Memo every 6 days. Most recently, Customizable calculator was updated on October 25, 2026 and Rub Memo on October 31, 2026.

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