Calculator Notes vs Due2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Notes
This app combines a calculator with spreadsheet functionality, allowing users to automatically sum item values. It supports unlimited folders and notes, with features like goal setting and batch operations. Widgets are available for home and lock screens.
- Automatic total value calculation
- Unlimited folders, notes, and items
- CSV output and sharing
- Goal setting and progress tracking
- Batch operations (copy, duplicate, color coding)
- Home & lock screen widgets
- Dark mode
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It is a calculator notepad that automatically calculates the total value. A simple spreadsheet application. Widget compatible. All features are completely free to use. - Unlimited folders/notes/items - Automatically calculate the total value of items - CSV output / save file / share to SNS - Set goals and deadlines and display percentages - Batch operations such as copy/duplicate/color coding - filter and sort - Consumption tax calculation and fixed cost settings - Easy input from history - Home & lock screen widget support - dark mode
Due2
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Ask AI to create schedules, grab items shared by others, and manage deadlines together in groups. Your data stays encrypted, syncs across phone, watch, and PC, and connects with other AI tools via CLI. [Key Features] - Dashboard: see urgent / this month / upcoming at a glance - Easy Mode: large text and simplified screens for everyone - 4-digit PIN: lock with just 4 digits instead of a complex password - AI Search: find items in natural language; AI auto-adds deadlines - AI Goal Planner: let AI generate a schedule to reach your goals - AI extraction: paste text or snap a photo — AI finds deadlines and adds them - Push alerts at your chosen timing: D-30, D-7, D-1, D-day, and more - Recurring schedules: auto-renew monthly or yearly, zero re-entry - Group sharing: create multiple groups, share with family or team, transfer ownership - Group chat: discuss schedules in real time with E2EE group chat - Public packs: browse and follow schedule packs by other users, add to your own - Calendar import: pull events from your device calendar and turn them into deadlines - Apple Watch: check deadlines on your wrist, see urgent count via complications, real-time sync and offline support - E2E encryption: memos are encrypted on-device; even Due2 servers cannot read them - TTS voice briefing: listen to your dashboard summary or let notifications read themselves - CLI / AI integration: add items from the terminal; let AI agents extract deadlines automatically - Keyboard shortcuts: quick actions on desktop - Multi-platform: sync across iPhone, macOS, and Windows - Biometric lock: protect your data with Face ID / Touch ID / fingerprint - Dark mode / Korean, English, and Japanese [Pricing] - Free: up to 10 active items, 5 group shared items - Plus: $9.99/year, up to 300 active items, 30 group shared items - Pro: $19.99/year, up to 1,000 active items, 100 group shared items Privacy Policy: https://due2.app/privacy Terms of Service: https://due2.app/terms Account & Data Deletion: https://due2.app/delete-account Support: https://due2.app/support
Screenshots
Verdict
The clearest difference is in-app purchases: Calculator Notes at none against Due2's 2. Due2's advantage is ads (none vs shown) and update cadence (weekly vs every 12 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Due2 sells 2 in-app purchases, starting at $9.99 per year. Calculator Notes asks for nothing beyond the download.
Calculator Notes ships an update every 12 months, Due2 weekly. The most recent releases landed on September 21, 2026 and October 13, 2026 respectively.
| Parameter | Calculator Notes | Due2 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 12 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | FugaPiyo Inc. | MyIAM Inc. |
In-app purchases
Calculator Notes
No in-app purchases
Due2
- Due2 Plus$9.991 Year
- Due2 Pro$19.991 Year









