Scientific Calculator Plus 991

Scientific Calculator Plus 991

NCalc & CalcES Calculator 115

13K ratings
506 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • April 3, 2019
  • October 14, 2026

Features

Scientific Calculator Plus 991 screenshot #1 for iPhone
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Scientific Calculator Plus 991 screenshot #8 for iPhone
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About

This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.

✓Natural display input
✓Graphing module
✓Formula library
✓Unit and currency converter
✓Algebra and calculus tools
✓Matrix and vector operations
✓Statistical calculations
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What users say about Scientific Calculator Plus 991

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+1

What's New in Scientific Calculator Plus 991

3.6.2

October 14, 2026

- Inequalities: get the full answer, now in interval notation. - Tap a result to see it in other forms, save it to a variable or open it as a table. - New themes: Blueprint, Paper, Synthwave and Solarized. - Camera: scan, compute or draw an expression. - Copy an expression as LaTeX or as an image. - The user manual is now available in your language.

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User reviews

Convert

I’m a seasoned electrical engineer having spent my career using RPN. RPN is efficient for simple calculations but the breadth of capability using NCALC has me excited to learn other ways to solve circuit issues. There is nothing the tool can’t conquer with some work and devotion. I’ve owned NCALC for a few years and hoped a few YouTube videos would suffice. I was wrong. Fortunately, the manual is excellent and as I take on more tasks to uncover, the possibilities keep revealing themselves. It’s very well done and that it works on so many Apple devices allows the circumstances of life to not keep from reaching for it. Thanks to the design and quality team for making this tool available.
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Simply put, the best calculator I’ve ever had!

I was always fascinated by what calculators could offer, and even though I had in the past some quite capable ones, NCalc is just the best of them all, the simplest and most intuitive to use, and the one with the most attention to detail on its user interface I’ve seen so far!

Pretty good

I mean, this calculator isn’t perfect, but compared to the other ones(specifically the black & orange ones that are filled with ad breaks), it’s pretty good, really helps in match class :D

Button Not Updates

Please update the interface of button as natural keyboard (up,down,left,right buttons) as updated in android version. Also provide update as soon as updated on android version. Other is fine I had purchased premium and praises this software developer make a best product. If updated 5 star now only3.
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No comment

It s ok to use it

Developer apps

User experience

🐞

Reported Bugs

3 issues

Keyboard input stops working after switching screens

Bug

Incorrect calculation results for certain operations

Bug

App crashes on some devices after recent update

Bug
✨

Requested Features

5 requests

Add option to change display font and color

Feature

Improve cursor control and editing capabilities

Feature

Implement auto-simplification for complex expressions

Feature

Add more handwriting font options

Feature

Expand graphing and equation solving features

Feature

FAQ

What does NCalc Scientific Calculator + do?

NCalc is a comprehensive scientific calculator that includes a graphing module, a large formula library, and a unit and currency converter. It is designed to assist students, engineers, and math enthusiasts with a wide range of mathematical tasks.

What are the key features of this calculator app?

Key features include a natural display for entering expressions as they appear in textbooks, a graphing module similar to popular graphing calculators, advanced tools for algebra, calculus, matrices, and statistics, and a built-in unit and currency converter. It also supports multiple number bases and provides a calculation history.

Is NCalc Scientific Calculator + free to use?

The application is available for free download and use, but it does contain in-app purchases. This means that while the core functionality is accessible, certain advanced features or content may require a purchase to unlock.

Who is the target audience for NCalc Scientific Calculator +?

This app is primarily designed for students, engineers, and anyone with a strong interest in mathematics. Its extensive features cater to users who require advanced calculation, graphing, and problem-solving capabilities for academic or professional purposes.

What kind of math problems can this app solve?

The app can handle a wide array of mathematical problems, including algebraic manipulations (expansion, factorization), calculus operations (derivatives, integrals, limits), solving various types of equations and inequalities, matrix and vector operations, and statistical calculations. It also supports complex number arithmetic and number base conversions.