# Calculator²

> Multi-functional calculator app with scientific, financial, programmer, and conversion tools. (iPhone/iPad app by Richard Walters.)

- Source: https://appshunter.io/ios/app/calculator/id1137474749 (this page in markdown: same URL + `.md`)
- Developer: [Richard Walters](https://appshunter.io/developer/1137474748)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 9.0 · 78 MB
- Languages: Dutch, English, French, German, Hungarian, Italian, Polish, Portuguese, Russian, Chinese and 3 more
- Released: 2016-09-09
- Data updated: 2026-06-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator/id1137474749/reviews.md

## What is Calculator²?

The smart calculator for iOS.

Scientific Calculator

An advanced calculator with a comprehensive set of mathematical functions including trigonometric, hyperbolic, logarithmic, exponential, factorial, combination and permutation. Over 125 mathematical and physical constants are accessible in an easy-to-navigate list. Implicit multiplication and operator precedence are supported for faster input, while the unique memory mode also provides a facility for statistical functions.

Financial Calculator*

A calculator with a variety of functions for performing financial calculations, such as determining the monthly payments on a loan or the price of an item after tax has been applied. Individual rates can be set for markup, discount, tax and interest. Perfect for students and professionals who wish to verify the results of time value of money calculations.

Programmer Calculator

A powerful tool for conversions between decimal, hexadecimal, octal and binary number bases, with a unique view for entering ASCII keys. Bitwise operations including AND, OR, XOR and NOT are available, in addition to functions not usually found in a programmer calculator, such as square and factorial.

Basic Calculator

A simple, easy-to-use calculator for quick, everyday calculations.

Currency Converter*

A currency calculator providing accurate conversions between 150+ World currencies. The exchange rates are easily updated to real-time values from the Open Exchange Rates API, while favourite currency conversions can be saved for easy comparisons.

Unit Converter

A comprehensive unit converter with over 200 units across 26 categories, including temperature, fuel consumption, viscosity, radiation and more.
 
* The Financial Calculator and Currency Converter are unlocked by an in-app purchase

## Key features

- Scientific calculator with advanced functions
- Financial calculator for loan and tax calculations
- Programmer calculator for number base conversions
- Currency converter with real-time rates
- Unit converter for over 200 units
- Basic calculator for everyday use

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calculator² Premium | $1.99 | one-time |
| Financial Calculator | $0.99 | one-time |
| Currency Converter | $0.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/calculator/id1137474749/reviews.md

### 4/5 — Excellent app!

*2018-06-11*

Having used this for some time on WP I moved to iOS and it was the first app I purchased, it’s smooth, feature rich, a doddle to use and upgrading is a very small price to pay for what you get.
Fingers crossed that the dark theme might be released.

## Frequently asked questions about Calculator²

### What types of calculators does Calculator² offer?

Calculator² provides a Scientific Calculator, Financial Calculator, Programmer Calculator, and a Basic Calculator. It also includes a Currency Converter and a Unit Converter.

### How does the Currency Converter in Calculator² work?

The Currency Converter in Calculator² offers accurate conversions between over 150 world currencies. Exchange rates are updated to real-time values using the Open Exchange Rates API, and favorite conversions can be saved.

### Is Calculator² free to use?

Calculator² is free to download and use for its basic functions. However, the Financial Calculator and Currency Converter features are unlocked via an in-app purchase.

### What devices does Calculator² support?

Calculator² is designed for iOS devices, specifically supporting iPhone and iPod.

### How often is Calculator² updated?

The app was last updated on March 21, 2020, to version 1.10. Update frequency can vary based on developer plans and user feedback.

### What age rating does Calculator² have?

Calculator² has an age rating of 4+, making it suitable for a wide range of users.

### Does Calculator² offer offline functionality?

While the description doesn't explicitly state offline functionality for all features, core calculator functions and unit conversions are typically available offline. Real-time currency conversion may require an internet connection.

### Can I export calculations from Calculator²?

The provided description does not mention the ability to export calculations. The app focuses on providing calculation tools and conversions.

## Version history (last 5 releases)

### 1.10 — 2020-03-21

• We’ve added support for dark mode on iOS 13.

### 1.9 — 2019-11-25

• We’ve fixed the background transparency of the navigation bar for iOS 13.

### 1.8 — 2019-03-11

• We’ve allowed limited access to the premium calculators before making a purchase so that you can try them out.

### 1.7 — 2018-12-12

• Added the Venezuelan bolivar soberano (VES) to the currency converter.
• Simplified the settings.

### 1.6 — 2018-08-02

• Now showing the value of tax, markup and discount in the financial calculator when one of these functions are used.
• Added troy ounce and troy pound to the unit converter.

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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 2026-06-03.*