Best apps like QI Calculator

10+ similar apps compared and reviewed

4.4 avg rating
10 free apps
Updated October 2026

QI Calculator is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to QI Calculator

More apps like QI Calculator

4
Calculator Plus Pro
Calculator Plus Pro
Calculator Plus Pro
Intelligence,Complex,Calc
Free

Enhance your iPad experience with this advanced calculator. It offers intelligent calculations and a clean, ad-free interface, making complex math tasks simpler and more efficient.

Intelligent calculationsComplex math supportAd-free experience
🔧 Utilities
(33)
free
5
Multi-tab Calc - A simple app.
Multi-tab Calc - A simple app.
Multi-tab Calc - A simple app.
Multiple calc in one app.
Free

Perform multiple calculations simultaneously in a single application. Seamlessly switch between different tabs for various operations. Designed for ease of use with a clean interface, it handles everything from simple math to totaling shopping lists.

Multiple calculator tabsSeamless tab switchingOptimized for casual use
🔧 Utilities
(14)
free
6
Calvance Calculator
Calvance Calculator
Calvance Calculator
Canvas calculator with notes
Free

This app redefines calculation with an infinite canvas for visual workflows and smart linkage for real-time updates. It automatically saves results, allows for labeled annotations, and enables formula reuse for efficient scenario testing. Ideal for students, engineers, and finance professionals.

Infinite canvas for visual calculation workflowsSmart linkage for automatic real-time updatesAutomatic saving of intermediate results
🔧 Utilities
(6)
freemium
7
SFX Scientific Calculator
SFX Scientific Calculator
SFX Scientific Calculator
Engineering Math & Statistics
Free

This free calculator app is designed for academic, scientific, and engineering needs. It offers basic arithmetic, memory storage, fraction and percentage calculations, and advanced functions like linear regression and hexadecimal conversions. Its user interface mimics a Casio scientific calculator.

Basic arithmeticConstant and memory storageFraction and percentage calculation
🔧 Utilities
(144)
ad-supported
8
ACalc - Scientific Calculator
ACalc - Scientific Calculator
ACalc - Scientific Calculator
by Netviking AB
Free

A straightforward scientific calculator with large, easy-to-use buttons and a clear display. It handles basic arithmetic and advanced functions like trigonometry and exponentials, with memory storage capabilities.

Basic arithmetic operationsTrigonometric functionsHyperbolic functions
🔧 Utilities
(82)
free with in-app purchases
9
UniCount scientific calculator
UniCount scientific calculator
UniCount scientific calculator
Engineering & complex numbers
Free

This app offers a comprehensive calculator for various mathematical needs, including basic arithmetic, algebra, trigonometry, and complex numbers. It supports multi-story fractions, roots, and provides infinite problem solutions with a user-friendly interface and multiple modes.

Multi-story fractions, powers, and roots16 trigonometric functionsComplex number calculations
🔧 Utilities
(14)
free
10
Calculator C: Auto-Sum History
Calculator C: Auto-Sum History
Calculator C: Auto-Sum History
See the formula, get the total
Free

This utility app offers a calculator with advanced features like formula history, automatic totals, and customizable button placement for one-handed use. Easily reuse past calculations, copy results, and share your work.

Adjustable button positionsFormula and history displayAutomatic calculation aggregation
🔧 Utilities
(43)
free with in-app purchases