CalcNotes vs Byosoku Memo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
CalcNotes
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A powerful notepad that calculates each line and shows the results instantly. Quickly handle addition, subtraction, multiplication, division, and more in real time. Perfect for household budgets, balance tracking, revenue calculations, or splitting bills whenever you need to compute. β Calculation + Notepad Write an expression and it calculates automatically, displaying the result on the right. β No Equal Sign Needed You never need an '=' in your formulas. The app calculates automatically and shows the result in real time. β Tolerant of Extra Characters Expressions like "1,000 + 2,000" work perfectly even with commas or other characters. The app ignores what it doesn't need and still calculates correctly. β Copy Results Instantly Copy the calculation result with a single tap and paste it wherever you need it. β Unlimited Tab Management Create unlimited tabs for each category. β Flexible Tab Reordering Reorder tabs freely with intuitive drag-and-drop. β Notifications Schedule reminders with any message at the time you choose. β Automatic Backup & Restore Automatic backups keep your important data fully protected, even when switching devices. β Rich Theme Options Customize the app with a wide variety of color themes. β Biometric Authentication Boost app security with biometric authentication. β Full Offline Support Use the app anytime without an internet connection. β Full Dark Mode Support Switch freely between system-linked, light, and dark modes. β No Login Required Start using the app immediately without any login. β Robust Security We never send your data outside the device. All data stays securely stored on your device. No password input or storage is required. β Fast Support We respond quickly to your inquiries. Feel free to contact us at info@naokiotsu.com β Privacy Policy https://naokiotsu.com/privacy-policy β Terms of service https://naokiotsu.com/term-of-use
Byosoku Memo
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Between βopenβ and βwrite,β there is nothing. Byosoku Memo is a zero-friction notepad: the moment it launches, a new note and the keyboard are already there. No hunting for buttons, no flipping pages β the app finally keeps up with βlet me jot this down before I forget.β β Open = start typing Tap the icon and a blank note with the keyboard appears at once. No splash screen, no confirmation dialog. β Auto-save, always There is no save button. Every keystroke is saved instantly. Close an empty note and nothing is left behind β no junk notes. β Lock Screen & Home Screen widgets Jump straight from a Lock Screen widget into a new note. The Home Screen widget lists your recent notes; tap one to open it directly. β Control Center (iOS 18) Add βNew Noteβ to Control Center and start writing from anywhere with one tap. β Smart full-text search Kana, full/half-width and upper/lowercase are all treated alike, with multi-word AND search to find any note fast. β Export & share Share a single note, or export your whole list as a text file. All data is stored on your device. No account required. [Pricing] Every feature is available. A banner ad is shown at the bottom of the screen. A one-time βRemove Adsβ purchase hides it permanently (no subscription). Privacy policy: https://honki.ai/byosoku-memo/privacy.html
Screenshots
Verdict
The clearest difference is ads: CalcNotes at none against Byosoku Memo's shown. CalcNotes also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, 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
Both are free to download. CalcNotes sells 2 in-app purchases, starting at $1.99 per month and Byosoku Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CalcNotes ships an update weekly, Byosoku Memo fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | CalcNotes | Byosoku Memo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly β better | Fortnightly |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 52 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | naoki otsu | δΈ½δ½³ ζ½ |
In-app purchases
CalcNotes
- Premium$1.991 Month
- Premium (Pay Once)$4.99
Byosoku Memo
- Remove Ads$0.49









