# Calc 2M — Scientific Calculator

> Advanced scientific calculator with history, themes, and export for iOS devices. (iPhone/iPad app by inkOfPixel srl.)

- Source: https://appshunter.io/ios/app/calc-2m/id492563960 (this page in markdown: same URL + `.md`)
- Developer: [inkOfPixel srl](https://appshunter.io/developer/492563963)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 4.90/5 from 27 App Store ratings · 100 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 48 MB
- Languages: American English, Italian
- Released: 2012-01-10
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calc-2m/id492563960/reviews.md

## What is Calc 2M?

With over half a million users Calc 2M is the best calculator on the App Store!
Calc 2M combines in a simple and beautiful design all the standard and pro features of a calculator!
We put particular attention on user experience trying to create the best possible calculator for iPad, iPhone and Apple Watch!

Features: 
• History: All the expressions you make will be saved in your history, you can reuse them whenever you want.
• Drag&Drop: Drag your previously typed calculations on the display for an easier and faster entry.
• Themes: Change theme to fit your style. A lot of skin options (Dark, Light, Ninja, Sunrise, Dev, Vintage)
• Export: Print or send your calculations as you like. You can use any third-part applications that you have installed
• Widget: Need a quick calculation? Install the widget. 
• Readability: Coloured syntax to improve expression readability.
• Functions: The powerful advanced functions make it ideal also for students, engineers and scientists.
• Editable expressions: Expression completely editable, use the cursor to move within the expression, copy and paste.
• Settings: Set Calc 2M according to your needs.

We are continually working on Calc 2M to bring you the best product possible!
Feedback are very welcome. They help us to improve Calc 2M!

## Key features

- Calculation history
- Drag and drop input
- Customizable themes
- Export calculations
- Widget for quick access
- Editable expressions
- Advanced functions

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Ninja Theme | $0.99 | one-time |
| Sunrise Theme | $0.99 | one-time |
| Dev Theme | $0.99 | one-time |
| Vintage Theme | $0.99 | one-time |
| Theme Pack | $1.99 | one-time |
| Light theme | $0.99 | one-time |
| Clarity Theme | $0.99 | one-time |


## What do users think of Calc 2M?

Overall sentiment: positive

**Pros**

- 👍 Clean, intuitive, and user-friendly interface
- 🧮 Powerful scientific calculator with extensive functions
- 📜 Accessible calculation history that persists across sessions
- ✏️ Ability to edit and reuse previous expressions
- 🎨 Beautiful, aesthetically pleasing design
- ⚡ Fast and responsive performance
- 🆓 Free with no ads
- 🎯 Better than Apple's built-in calculator
- 🔄 Gesture-based controls for efficient navigation
- 📱 Works seamlessly on iPhone

**Cons**

- 🐛 App crashes on startup (older versions)
- 🔤 Font size and style options are limited
- 📱 iPad version is laggy and poorly optimized
- ❌ Error handling requires restarting from beginning
- 🎮 Swiping gestures sometimes trigger unintended functions
- 🔍 Poor App Store search visibility
- ⌨️ Difficult to make numbers negative
- 🔧 Editing long expressions is cumbersome
- 📊 Lacks some standard scientific calculator features

**Commonly reported bugs**

- App crashes on startup
- Trigonometric functions produce incorrect results
- Combination function (comb) returns wrong values
- Sin and Tan functions malfunction
- Swiping causes unintended function entry
- Error state requires complete restart
- iPad version is laggy and unresponsive
- Spelling error in function names (trigonometry misspelled)
- App doesn't open on some devices

**Most requested features**

- Automatic bracket completion
- Fraction to decimal converter and vice versa
- Apple Watch app support
- More font options and customizable font sizes
- RPN (Reverse Polish Notation) mode
- Dedicated Clear/CE button in prominent location
- Easier negative number input
- Algebraic functions
- Graph plotting capabilities
- Ability to disable advanced options for basic calculator view

## Recent user reviews (10 of 100)

All indexed reviews: https://appshunter.io/ios/app/calc-2m/id492563960/reviews.md

### 5/5 — Solid app.

*2026-01-17, version 3.2.4*

It is simple and straightforward. Once you know the links to it. It’s easier to use especially when doing complex calculations. The table allows for moving answers and expressions.

### 5/5 — The best calculator app

*2024-09-30, version 3.2.4*

This remains the best scientific calculator app even after Apple updated their own in iOS 18. Love the interface and its ease of use.

### 5/5 — Awesome calculator

*2022-09-30, version 3.2.4*

The best I have found for iOS so far (and I have looked at a lot).

### 4/5 — Custom font size and style

*2019-09-29, version 3.2.3*

The font of all themes looks not so comfortable, especially for numbers. Please provide more font options and allow to change their sizes. Good job for calc itself!

### 1/5 — iOS13 - calc need to be fixed

*2019-09-21, version 3.2.3*

Need to be fixed
When get error then all need to start from beginning...
Swiping cause entering functions

### 5/5 — I would call this the best calculator in App Store

*2019-01-27, version 3.2.3*

It’s a shame that it didn’t show up in App Store “calculator” search results.

### 5/5 — Calculator, with the user in mind.

*2019-01-08, version 3.2.3*

The software developers have created an excellent software app in this calculator, the basic app is a great function based calculator with an easy accessible history, and should need further add-on’s they are available ie higher financial functions etc. but the basic app should meet your day to day needs, great app, I encourage you to delete apples calculator and replace it with this one.
D.B.Hughes.

### 5/5 — New update?

*2018-02-13, version 3.2.1*

The most practical calculator app...

### 5/5 — Love it!

*2017-09-30, version 3.2.1*

There will be history of calculations. Plus you can refer to the previous calculation even it's from yesterday!

### 5/5 — 5stars

*2017-08-13, version 3.2.1*

Interface is wonderful

## Frequently asked questions about Calc 2M

### What does Calc 2M do?

Calc 2M is a scientific calculator app that combines standard and advanced functions in a user-friendly interface. It allows users to perform complex calculations, save their work in history, and customize the app's appearance with various themes.

### What are the key features of Calc 2M?

Key features include a comprehensive calculation history that can be reused, drag-and-drop functionality for easier input, multiple themes for personalization, the ability to export calculations via print or third-party apps, a widget for quick access, and editable expressions with cursor control.

### Is Calc 2M free to use?

The app is free to download and use, offering a range of standard and pro features. There are in-app purchases available, likely for additional themes or advanced functionalities, though the core calculator functions are accessible without cost.

### What devices is Calc 2M compatible with?

Calc 2M is designed for Apple devices, including iPad, iPhone, and Apple Watch. This ensures a consistent and optimized user experience across different Apple platforms.

### Who would benefit from using Calc 2M?

This app is ideal for students, engineers, and scientists who require a powerful and reliable calculator for their academic or professional work. Its advanced functions and user-friendly design also make it suitable for anyone needing more than a basic calculator.

## Version history (last 5 releases)

### 3.2.4 — 2020-12-23

Minor fixes

### 3.2.3 — 2018-04-19

Minor fixes

### 3.2.2 — 2018-04-11

- iPhone X support
- Fixed widget for iOS 11.3

### 3.2.1 — 2016-10-06

New CLARITY theme!!! (FREE for all theme pack subscribers)
- Larger font size
- Higher keyboard sections contrast
- Focused on legibility

In addition:
- Improved widget look & feel
- Math engine optimizations

### 3.2 — 2016-09-20

GREAT NEWS! Following your feedbacks we have decided to make freely available the Light theme !!!

Version 3.2 also include: 
- iOS 10 support
- New icon
- Minor fixes

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All apps by inkOfPixel srl: https://appshunter.io/developer/492563963

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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 2026-06-11.*