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Calculator +

Calculator +

Graphing, Percentage, Triangle

10K ratings
940 reviews
With Ads
🔧 Utilities
📊 Productivity
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • February 5, 2010
  • May 4, 2026

Features

Developer

xNeat.com
✨Promote your app ✨
Calculator + video #1 for iPhone
Calculator + screenshot #2 for iPhone
iphone
ipad
🧾$2.99 - $16.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐940
Reviews↘︎
📝40+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
🎪1 available
Events↘︎
❓5 answered
FAQ↘︎
📦~ in 3 days
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

✓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
Show original description

What users say

Summarized from real user reviews of Calculator +. Based on 10K reviews and a 4.6/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Utilities app.

Positive things

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

Negative things

  • 🐛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
See all reviews

What's New in Calculator +

2.9.30

May 4, 2026

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.

More

Subscription plans

Scientific Calculator

Premium features and no ads for 1 month!

$4.991 Month
3 Days trial
How to cancel Calculator + subscription ⁉️
10

In-App Purchases

$2.99

Linear Calculator

Solve System of linear equations

Events

Read more about Intuitive Math Made Easy
Event EndedMajor Update

Intuitive Math Made Easy

Tired of clunky calculators? try Calculator Plus!

Mar 1, 2024 — Apr 1, 2024

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

I love it!

I use it for school all the time and it’s great for my higher level classes!! This is my go to calculator and I am in grad school so it is perfect!
Smallwood Krazy zooSmallwood Krazy zoo

New update - Key feature lost?

Hi Team Calculator + … what happened to the rad/degree change over? This is crucial for a scientific calculator. Is this missing now? Please update as it was in the older version. Thank you
1mjourney.com1mjourney.com

Calculator

Works well and retains memory when app is closed
Substandard1Substandard1

Waste of money

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

Works great!

Works like a calculator should. I’ve not encountered any issues with it.
JKasthuriJKasthuri
See 935 more reviews

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User experience

🐞

Reported Bugs

5 issues

Fraction calculator has TWO subtraction buttons and NO division button

Bug

Decimals seem to be changed to fraction with no apparent way of changing it back

Bug

Functionality is dropped by forcing you to the main menu every time you open it

Bug

Currency converter broken

Bug

Login screen freezes

Bug
✨

Requested Features

5 requests

Add mod function

Feature

Add commas

Feature

Add 1/x function

Feature

Support for Retina Display

Feature

Add number 4 with two lines

Feature

FAQ

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.