# Keisan Memo — Calc Notepad — Notes that do the math

> Notes that do the math (iPhone/iPad app by 丽佳 施.)

- Source: https://appshunter.io/ios/app/keisan-memo-calc-notepad/id6791201696 (this page in markdown: same URL + `.md`)
- Developer: [丽佳 施](https://appshunter.io/developer/1894580777)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Japanese
- Released: 2026-07-17
- Data updated: 2026-08-12
- User reviews in markdown: https://appshunter.io/ios/app/keisan-memo-calc-notepad/id6791201696/reviews.md

## What is Keisan Memo?

Stop bouncing between a calculator and your notes.

Keisan Memo is a text calculator. Write “lunch 1,200 × 3” in a note and “3,600” appears at the end of the line as you type. Edit the numbers and every result updates.

- NATURAL WRITING: labels and math share the same line.
- JAPANESE-NATIVE: supports Japanese numerals, consumption tax phrases, and percentage discounts.
- TOTALS & VARIABLES: write 合計 to sum previous lines or define reusable values.
- UNIT CONVERSION: convert length, weight, and time inline.
- EXACT DECIMAL MATH: 0.1 + 0.2 is exactly 0.3.
- FREE AND UNLIMITED: notes, lines, templates, and text/CSV export have no paywall.
- ON-DEVICE NOTES: calculations and note storage stay on the device. Note contents are not sent to the advertising provider.

The free app displays one adaptive banner at the bottom. A ¥100 / $0.99 non-consumable purchase permanently removes the banner. It is a one-time purchase with no subscription and no automatic renewal. Ad delivery uses Google AdMob and an internet connection; advertising identifier use follows your iOS tracking permission.

Note: results are estimates for personal memos and are not accounting, tax, or legal advice.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads (Lifetime) | $0.99 | one-time |



## Version history (last 3 releases)

### 1.0.2 — 2026-07-29

- Fixed an ad privacy setting so ads display correctly.

### 1.0.1 — 2026-07-25

Fixed an issue where the ad banner could cover the tab bar and block navigation.

### 1.0 — 2026-07-17

No release notes.

## More apps by 丽佳 施

- [Bolt Brigade: Tank Battle](https://appshunter.io/ios/app/bolt-brigade-tank-battle/id6769092885)
- [童童的萌宠面包房·小学数学口算](https://appshunter.io/ios/app/id6769093315)
- [Stack Tower Up](https://appshunter.io/ios/app/stack-tower-up/id6769321760)
- [Pomotown - Focus Timer](https://appshunter.io/ios/app/pomotown-focus-timer/id6769728830)
- [Lensage: Astro & Photo Planner](https://appshunter.io/ios/app/lensage-astro-and-photo-planner/id6769730141)
- [Ember — Private Diary](https://appshunter.io/ios/app/ember-private-diary/id6769777961)

All apps by 丽佳 施: https://appshunter.io/developer/1894580777

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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 2026-08-12.*