210+ iOS apps curated and reviewed
The best spectral calculator apps on iPhone average 4.5★ across 210+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Try Calculator₊, the ultimate mathematics tool offering basic, scientific, and plus calculations. Ideal for homework, exams, and managing expenses, this app is like having a personal math tutor on your phone. Download now for easy and intuitive math solutions!
A top-rated scientific calculator app on iOS devices offering advanced math functions with a user-friendly interface for users of all levels. Features include step-by-step solutions, math photo solving, and handwriting recognition. Enhance your calculations with this versatile tool.
Get advanced math functions, statistics, matrices, and graphing capabilities with this all-in-one calculator app designed for high school and college students. Perfect for mastering pre-algebra, algebra, and more. Download now for a smarter way to calculate and visualize data.
A versatile and customizable calculator app offering basic and scientific functions, memory features, history tape, and various layout options. Users can personalize their color themes, access scientific functions, and easily perform complex calculations, all with ad-supported convenience. Explore the app now for a powerful and user-friendly calculation experience!
A versatile calculator app with Basic, Scientific, and Programmer modes for iPhone, iPad, and iPod Touch. Easily view history and share results via email or copy. Get precise calculations on-the-go!
A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!
A powerful graphing calculator app designed for all users, offering both basic and advanced mathematical functions with a user-friendly interface. Equipped with a robust math core and support features for engineers and math students. Explore built-in documents and tutorials for a comprehensive mathematical experience.
The app is a comprehensive graphing calculator that features algebraic entry, math functions, graph plotting, statistics, matrix operations, unit conversion, BASIC programming, chemistry tools, geometry calculations, finance functions, and a built-in user guide for easy reference. It offers a colorful, fast, and fluid experience on iPhone and iPad with advanced features like touch input, high-resolution graph outputs, and fast computation speeds. Explore its diverse functionality to enhance your mathematical tasks.
A versatile graphing calculator app with advanced scientific functions, graphing capabilities, unit conversion, constants, table generation, educational resources, and statistical tools. Perfect for students and professionals in math and science fields. Discover a world of mathematical possibilities in one convenient tool.
Estimate the amount of gravel, stone, sand, and more for your projects with this free gravel calculator. Get accurate measurements in tons, cubic yards, and cubic meters. Trusted by millions worldwide, it's your go-to tool for landscaping and hardscaping projects!
A modern graphing calculator application designed for iPhone users, offering fast and interactive touch-screen graphing with intuitive features and intelligent error messages. Created by individuals who found existing graphing calculator apps lacking, it is continually improved with feedback from students. Visit the app's website for Privacy Policy and Terms of Use.
An app designed to help optimize plant lighting by measuring PAR, lux, and kelvin, aiding in maximizing yield while minimizing energy consumption. Additionally, it offers helpful articles, a plant lighting calculator, and a Pro subscription for advanced features and resources to support plant growth. Visit the website to learn more.
This application provides a test-safe calculator with statistics, graphing, matrix, and scientific functionality, all equivalent to popular calculator brands. It includes a unique Test-Mode lockdown feature for students and teachers, ensuring focus in classrooms and preventing cheating. Contact the team to get started or access tutorials at the provided link.
Monitor and analyze your solar energy system effortlessly with our app - easily check system health, track energy production, analyze performance against weather data, and generate reports.
Experience a free Interactive Graphing Calculator for graphing functions, conics, and inequalities with ease. Quickly visualize multiple functions and view properties like extreme points and intercepts. Enhance your experience by upgrading for step-by-step function evaluation with Symbolab Solver.
Experience the ultimate mobile calculator with 10 powerful calculators and financial worksheets, trusted by millions worldwide for its unrivaled accuracy and advanced features. From standard and scientific calculators to unit converters and graphing tools, this app has it all. Get it now for advanced calculations at your fingertips!
"Good Grapher™ is a powerful scientific graphing calculator designed for students and professionals, offering a wide range of functions including scientific calculations, 2D and 3D graphing capabilities, math problem solving, and more. Visit www.goodgrapher.com for demos, screenshots, and further details."
A professional-grade calculator app designed for quick and accurate mathematical calculations on-the-go. Upgrade to the full version for advanced features and functionalities.
This application helps you calculate the resolution of your display based on its dimensions and pixel count, and understand key concepts like PPI (Pixels Per Inch) and DPI. With this tool, you can learn how to calculate PPI, categorize resolution, and explore the differences between PPI and DPI.
This free app makes it easy to incorporate spectroscopy into biology and chemistry labs, allowing students to collect and analyze full spectra. It features a user-friendly interface, curve fitting, and data interpolation to explore topics like Beer's law, enzyme kinetics, and plant pigments.