# Calculator + — Graphing, Percentage, Triangle

> Free and paid scientific calculator with advanced math and unit conversion features. (iPhone/iPad app by xNeat.com.)

- Source: https://appshunter.io/ios/app/calculator-plus/id351815470 (this page in markdown: same URL + `.md`)
- Developer: [xNeat.com](https://appshunter.io/developer/327498295)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 10,020 App Store ratings · 938 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 48 MB
- Languages: American English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 21 more
- Released: 2010-02-05
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calculator-plus/id351815470/reviews.md

## What is Calculator +?

Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind!

FEATURES:

- Free basic calculator
- Free scientific calculator
- Elegant & Intuitive interface
- Advanced editing by easily going back and forth
- Displays both the equation & the result at the same time
- Supports Fraction & Percent
- Supports many scientific functions

If you are looking for more advanced features you can upgrade to one or more of the following:


- Fraction Calculator with feet, inches & cm support!
- Solving for x with a polynomial Calculator for solving quadratic & cubic equations 
     2x³ - 4x² - 22x + 24 = 0 
- Linear Equations Solver for solving system of linear equations 
     2x – y = 9 
     3x + 4y = –14 
- Graphing Calculator to find the local min, max & intersection points
     y = 2x³ – 4x 
     (x² + y²)³ = -27y²x²
- Triangle Calculator
- Cone Calculator
- Arc Calculator
- Circle Calculator
- Base Converter ( HEX OCT BIN DEC ) 
- Multiple themes

Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review.

Thanks :)

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Free basic and scientific calculator
- Intuitive interface with equation and result display
- Fraction and percent support
- Advanced editing capabilities
- Polynomial and linear equation solver
- Graphing calculator
- Unit conversion and geometric calculators

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Scientific Calculator | $4.99 | per month |
| Calculator | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Linear Calculator | $2.99 | one-time |
| Factoring Calculator | $2.99 | one-time |
| Graphing Calculator | $3.99 | one-time |
| Handwriting Calculator | $2.99 | one-time |
| Currency Converter | $2.99 | one-time |
| Calculator | $16.99 | one-time |
| Themes Pack | $2.99 | one-time |
| Scientific Calculator | $4.99 | one-time |
| Calculator Plus | $4.99 | one-time |
| Fraction Calculator | $3.99 | one-time |


## What do users think of Calculator +?

Overall sentiment: positive

**Pros**

- 👍 Great features and easy to use
- 👍 Efficient and quick
- 👍 Versatile, functional calculator
- 👍 Fantastic, easy to use app
- 👍 Awesome calculator app

**Cons**

- 🐛 New updated layout is awful
- 🐛 App is now terrible
- 🔒 Paying customer screwed over by update
- 🔒 Now timed trial, no free w/ads version
- 🔒 Not honest

**Commonly reported bugs**

- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes

**Most requested features**

- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines

## Recent user reviews (10 of 938)

All indexed reviews: https://appshunter.io/ios/app/calculator-plus/id351815470/reviews.md

### 5/5 — Calculator

*2026-08-25, version 2.9.30*

Works well and retains memory when app is closed

### 1/5 — Waste of money

*2026-08-21, version 2.9.30*

Stopped working completely but even before that, features were not working properly

### 5/5 — Works great!

*2026-08-09, version 2.9.30*

Works like a calculator should. I’ve not encountered any issues with it.

### 5/5 — Used for many Years

*2026-08-08, version 2.9.30*

Legit the best free calculator I’ve ever used, it has better options than the apple calculator tbh

### 5/5 — 5stars!!

*2026-07-16, version 2.9.30*

Like all things of the app!?!????

### 1/5 — Hi

*2026-07-01, version 2.9.30*

Is to expensive for what is doing! Apple Calculator better and free! Not recommended!

### 4/5 — Quite a reliable calculator with few annoying features

*2026-07-01, version 2.9.30*

For regular use the free edition works fine and for more complex uses, paying is a good price to value ratio.

### 5/5 — Nice calculator

*2026-07-01, version 2.9.30*

Large numbers, easy to correct, can do complex mixed math.

### 5/5 — Great calc

*2026-06-25, version 2.9.30*

Good calc

### 5/5 — Me encanta

*2026-06-15, version 2.9.30*

Muy buena app, muy útil y versátil

## Frequently asked questions about Calculator +

### What does the free version of this calculator app offer?

The free version provides a fully functional basic and scientific calculator. It features an elegant and intuitive interface that displays both the equation and the result simultaneously. It also supports calculations involving fractions and percentages, along with many standard scientific functions.

### What advanced features can I unlock through upgrades?

Upgrades unlock specialized calculators for advanced users. These include a fraction calculator with unit support (feet, inches, cm), a polynomial solver for quadratic and cubic equations, a linear equations solver, a graphing calculator to find min/max and intersection points, and calculators for various geometric shapes like triangles and cones. A base converter is also available.

### How much does this app cost?

The app offers a free basic and scientific calculator. Additional advanced features and specialized calculators are available through in-app purchases, allowing users to upgrade to specific functionalities they need.

### What devices is this calculator app compatible with?

This application is designed for both iPad and iPhone devices. It leverages the capabilities of these Apple platforms to provide a seamless and beautiful user experience.

### What are some common use cases for this app?

This app is useful for a wide range of users, from students performing homework to professionals tackling complex calculations. It's ideal for solving algebraic equations, graphing functions, performing unit conversions, and handling intricate mathematical problems that go beyond a standard calculator.

## Version history (last 5 releases)

### 2.9.30 — 2026-05-04

Fast math at your fingertips. Just like the problems you're solving, Calculator+ keeps evolving with minor bug fixes and performance improvements to ensure your scientific, fraction, and graphing calculations stay sharp.

### 2.9.29 — 2026-05-03

Fast math at your fingertips. Just like the problems you're solving, Calculator+ keeps evolving with minor bug fixes and performance improvements to ensure your scientific, fraction, and graphing calculations stay sharp.

### 2.9.26 — 2025-04-11

Bug fixes and performance improvements

### 2.9.25 — 2025-04-08

Bug fixes and performance improvements

### 2.9.23 — 2025-04-03

Bug fixes and performance improvements

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## More apps by xNeat.com

- [Scientific Calculator +](https://appshunter.io/ios/app/scientific-calculator-plus/id367164379)
- [Graphing Calculator](https://appshunter.io/ios/app/graphing-calculator/id376516907)
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All apps by xNeat.com: https://appshunter.io/developer/327498295

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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 2026-08-31.*