# Free RPN Calculator DeepStackLite

> Free RPN Calculator DeepStackLite (iPhone/iPad app by Kanasyscom, Inc..)

- Source: https://appshunter.io/ios/app/free-rpn-calculator-deepstacklite/id1155991031 (this page in markdown: same URL + `.md`)
- Developer: [Kanasyscom, Inc.](https://appshunter.io/developer/1304802717)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 12 MB
- Languages: English, Japanese
- Released: 2016-09-22
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/free-rpn-calculator-deepstacklite/id1155991031/reviews.md

## What is Free RPN Calculator DeepStackLite?

Lightweight Optimized HP Style Reverse Polish Notation(RPN) Calculator.

Features:

Optimized Key Layout

- Big Enter and Zero Key
- No Triangle Functions or 2nd Function key.
- Conditional DUP/DROP key(Enter/Backspace)
- Conditional E/E- key(Period)
- Right hand optimized design
- Paste from clipboard
- Copy to clipboard(Tap stack)

Difference from full version.

- Inverting layout for left hand using(Optional)
- Stack Label(Optional)
- Auto Sum(Optional)
- Shake to Reset(Optional)
- Auto Copy to Clipboard(Optional)
- Suppressing Click Sound(Optional)

Infinity Stack

- Deep stack without limitation except memory capacity.
- Stateless Design, Reset all condition when launching.

Responsive Touch

- Simple UI response is quicker than rich UI or HP emulators.
- Click sound (2 pattern,numbers or others)


## Version history (last 2 releases)

### 1.4.2 — 2016-10-11

This app has been updated by Apple to display the Apple Watch app icon.

- New look
- Paste from clipboard(Extra Bar)
- Copy to clipboard(Tap stack)
- Bugfix: Issue of background music stops at key click.

### 1.4.1 — 2016-09-21

No release notes.

## Apps similar to Free RPN Calculator DeepStackLite

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [bcRPN](https://appshunter.io/ios/app/bcrpn/id1614744829) | 4.8 (4) | Free | Utilities |
| [Rpn Calculator SW](https://appshunter.io/ios/app/rpn-calculator-sw/id1542516217) | — | Free | Utilities |
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| [Calc²](https://appshunter.io/ios/app/calc/id1330270164) | 5.0 (1) | Free | Utilities |
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## More apps by Kanasyscom, Inc.

- [DepenDo Reminder](https://appshunter.io/ios/app/dependo-reminder/id946969233)
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- [YA Messenger](https://appshunter.io/ios/app/ya-messenger/id954861066)
- [Zoom In/Out/Shift Map by Speed-SpeedZoomap](https://appshunter.io/ios/app/zoom-inoutshift-map-by-speed-speedzoomap/id1161131169)

All apps by Kanasyscom, Inc.: https://appshunter.io/developer/1304802717

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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 2026-05-19.*