# RPN Deck — Fast RPN, editable stack

> Fast RPN, editable stack (iPhone/iPad app by Edgard Leo Berendsen Mercado.)

- Source: https://appshunter.io/ios/app/rpn-deck/id6796490842 (this page in markdown: same URL + `.md`)
- Developer: [Edgard Leo Berendsen Mercado](https://appshunter.io/developer/1893604343)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: American English
- Released: 2026-08-17
- Data updated: 2026-09-11
- User reviews in markdown: https://appshunter.io/ios/app/rpn-deck/id6796490842/reviews.md

## What is RPN Deck?

RPN Deck is a reverse Polish calculator built for speed — and for fixing mistakes without starting over.

EVERY NUMBER STAYS EDITABLE
On most calculators one wrong digit means clearing the lot and typing it again. Here every value stays on screen. Tap a row to correct it in place. Swipe a row away to delete it. Undo steps back through anything you did.

RPN, PROPERLY
Type a value, press ENTER, type the next one. No parentheses. No equals key. No expression to hold in your head and get wrong three terms later. The stack is unlimited and every level of it stays visible.

FAST
Four functions and a percent key. TOTAL folds the whole stack into one number in a single press. Nothing is buried in a menu, because there are no menus.

THE FULL DECK — a one-time in-app purchase
Three ways in, one unlock. The Tape prints every keystroke like a receipt — each entry, each operation, each total — and shares as an image, text, or PDF. Scan points the camera at a receipt so you tap printed amounts straight onto the stack. Voice lets you speak numbers and they land where you'd type them. Family Sharing is supported, so one purchase covers your family group.

SIMPLE ON PURPOSE
No scientific functions. One surface, and everything on it does something.

PRIVATE BY DEFAULT
No account. No sign-in. No analytics, no tracking, no advertising. Nothing leaves your phone unless you share it yourself.

iPhone, portrait, English.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Deck | $2.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-08-28

Scan a receipt and tap amounts straight onto the deck. Speak numbers and they land where you'd type them. The unlock is now the Full Deck: tape, scan, and voice together. Display decimals follow what you type, with an Auto toggle in Settings. A short first lesson teaches the deck. New icon.

### 1.0 — 2026-08-17

No release notes.

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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 2026-09-11.*