# FuncNote — Calculate like taking notes.

> Calculate like taking notes. (iPhone/iPad app by Satoshi Kobayashi.)

- Source: https://appshunter.io/ios/app/funcnote/id1535937427 (this page in markdown: same URL + `.md`)
- Developer: [Satoshi Kobayashi](https://appshunter.io/developer/909987119)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 17.0 · 17 MB
- Languages: Japanese
- Released: 2024-06-10
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/funcnote/id1535937427/reviews.md

## What is FuncNote?

Write and calculate side‑by‑side with the Note Calculator—perfect for budgets, shopping lists, calorie tracking, and more.

====================  
◆ Top Use Cases  
====================  
• Budgeting: sort expenses by folder and check monthly totals in seconds  
• Shopping lists: compare “price × quantity + shipping” for bulk buys  
• Health tracking: instantly add up calories and PFC balance per ingredient  
• Study & work: save formulas with variables and recalc whenever you change a value

====================  
◆ Key Features  
====================  
• Basic arithmetic, variables, and user‑defined functions  
• Built‑in functions: exp, ln, log, pow, sqrt, sin, cos, tan, etc.  
• Constants: pi and Euler’s number e  
• Comment lines for notes right inside your calculations  
• Folder organization to keep everything tidy  
• Theme switcher and adjustable font size  
• Rounding method and decimal‑place controls

====================  
◆ Why You’ll Love It  
====================  
1. Every step is saved—spot input errors at a glance  
2. Edit a number and results update instantly  
3. Spreadsheet‑level power with a fraction of the effort  
4. More powerful than a calculator, lighter than a spreadsheet

Capture the ease of notes and the power of a full scientific calculator.  
Download now and start a smarter way of crunching numbers!

====================  
◆ Disclaimer  
====================  
• Although we strive for accuracy, we cannot guarantee that all results and information are entirely correct or complete. Use at your own risk.  
• The developer is not liable for any direct or indirect damages arising from the use or inability to use this app, including but not limited to loss of profit, data, or business interruption.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro plan | $19.99 | per year |
| Pro plan | $1.99 | per month |



## Version history (last 4 releases)

### 1.3.0 — 2026-04-30

All features are now available to all users.

### 1.2.0 — 2025-04-28

- Added note search functionality
- Bug fixes

### 1.1.0 — 2024-10-05

- Bug fixes.

### 1.0.0 — 2024-06-10

No release notes.

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## More apps by Satoshi Kobayashi

- [PhotoNote: Take Note by Camera](https://appshunter.io/ios/app/photonote-take-note-by-camera/id1465555338)

All apps by Satoshi Kobayashi: https://appshunter.io/developer/909987119

## Related topics

[satoshi kobayashi](https://appshunter.io/ios/topics/satoshi-kobayashi)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*