# Calx: Stack calculator

> Utilities

Canonical page: [https://chrome-stats.com/d/id928929230](https://chrome-stats.com/d/id928929230)

## Overview

- **ID:** `id928929230`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Daniel Clelland
- **Category:** Utilities
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.2.3
- **Last updated:** 2023-10-09
- **First published:** 2015-04-26
- **Size:** 3.86 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/calx-stack-calculator/id928929230)
- **Website:** [http://protonome.com/apps/calx/](http://protonome.com/apps/calx/)
- **Privacy policy:** [http://protonome.com/apps/calx/policy](http://protonome.com/apps/calx/policy)

## Description

CALX is an RPN calculator — a calculator designed to work with a list of numbers.

This means that instead of just typing an equation into your calculator, you push numbers onto a stack, and then apply operations to the lowermost numbers in the stack.

It's bizarre, but it makes sense once it clicks.

If this all sounds confusing, don't worry! CALX comes with a guided tutorial which will get you up to speed in three minutes.

Features:

• Gestural interaction: Manipulate your data with simple, intuitive gestures.
• Multiple keypads: CALX features an array of basic, scientific, and statistical functions.
• Customization: Select from different fonts and colours to find a combination that works for you.

## Rankings

- #662,640 — Overall

## Similar extensions and apps

- [Calccis](https://chrome-stats.com/d/id6446233205) — 5.00 / 5
- [CaaaalcIt](https://chrome-stats.com/d/id1556732744)
- [StackCalculatorApp](https://chrome-stats.com/d/id1586989528) — 5.00 / 5
- [RPN 28x Calc](https://chrome-stats.com/d/id529927583) — 5.00 / 5
- [Simple RPN](https://chrome-stats.com/d/id6771959257) — 5.00 / 5
- [Calca](https://chrome-stats.com/d/id635757879) — 4.60 / 5
- [MyCal: Editable Calculator](https://chrome-stats.com/d/id6775206178)
- [Calculator: Brill Calc](https://chrome-stats.com/d/id6478857571) — 5.00 / 5
- [Calciq - Smart Calculator](https://chrome-stats.com/d/id6774363653) — 5.00 / 5
- [ColorfulCalcu](https://chrome-stats.com/d/id1480472113) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id928929230)