# RPN Calculator

> RPN Calculator (iPhone/iPad app by Francois Metzler.)

- Source: https://appshunter.io/ios/app/rpn-calculator/id6772721357 (this page in markdown: same URL + `.md`)
- Developer: [Francois Metzler](https://appshunter.io/developer/6772716604)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, French (France)
- Released: 2026-10-11
- Data updated: 2026-10-12

## What is RPN Calculator?

RPN Calculator brings back the Reverse Polish Notation of the great scientific calculators. Enter the numbers, then the operation. No parentheses, no equals key, and every intermediate result stays in view.

Four level stack X, Y, Z, T, always displayed. Trigonometry in degrees, radians or grads. Logarithms, exponentials, powers, roots, factorial, percentages. Ten memory registers. Fixed, scientific and engineering display. Portrait and landscape, copy and paste, hardware keyboard on Mac and iPad.

No ads, no account, no data collected.

RPN Calculator reprend la notation polonaise inverse des grandes calculatrices scientifiques. On entre les nombres, puis l'opération. Pas de parenthèses, pas de touche égal, et chaque résultat intermédiaire reste sous vos yeux.

Pile à quatre niveaux X, Y, Z, T, toujours affichée. Trigonométrie en degrés, radians ou grades. Logarithmes, exponentielles, puissances, racines, factorielle, pourcentages. Dix mémoires. Affichage fixe, scientifique et ingénieur. Portrait et paysage, copier coller, clavier physique sur Mac et iPad.

Aucune publicité, aucun compte, aucune donnée collectée.

## Is RPN Calculator safe?

Not enough ratings yet to assess RPN Calculator.

## Is RPN Calculator legit?

RPN Calculator has limited verification signals. The AppsHunter Legitimacy Score for RPN Calculator is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-11

Improved Display - added a command icon for Command Center

### 1.0 — 2026-10-11

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 2026-10-12.*