# Reckoner: Calculation Notes — Keep it. Edit it. Use it again

> Keep it. Edit it. Use it again (iPhone/iPad app by Junhong Park.)

- Source: https://appshunter.io/ios/app/reckoner-calculation-notes/id6796618231 (this page in markdown: same URL + `.md`)
- Developer: [Junhong Park](https://appshunter.io/developer/1585298049)
- Category: Utilities, Productivity
- Price: $0.99
- Age rating: 4+
- Requires: iOS 17.0 · 9 MB
- Languages: American English
- Released: 2026-08-04
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/reckoner-calculation-notes/id6796618231/reviews.md

## What is Reckoner?

Each calculation stays as its own page.

Edit any part of an expression, name past calculations, and return to them whenever you need.

Scientific functions, easy copying, readable large numbers, and two quiet themes are included.

No account. No tracking. Everything stays on your device.


## Version history (last 1 release)

### 1.0 — 2026-08-04

No release notes.

## More apps by Junhong Park

- [CANVAS 캔버스 + 위젯](https://appshunter.io/ios/app/canvas-plus/id1596669616)
- [ADAM](https://appshunter.io/ios/app/adam/id1627961111)
- [롤인 - 롤링페이퍼](https://appshunter.io/ios/app/id6444391048)
- [중대한학식](https://appshunter.io/ios/app/id6446494120)
- [TaleTalk: Red Riding Hood](https://appshunter.io/ios/app/taletalk-red-riding-hood/id6742379138)
- [TURN - Focus Timer](https://appshunter.io/ios/app/turn-focus-timer/id6760718734)

All apps by Junhong Park: https://appshunter.io/developer/1585298049

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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 2026-08-05.*