A specialized calculator for performing modular arithmetic operations. It supports functions like modular inversion, powering, GCD, LCM, and primality testing.
ModCalc by Michal Glet

29+ similar apps compared and reviewed
Modulo is great, but it's not the only option. Explore 29+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

A specialized calculator for performing modular arithmetic operations. It supports functions like modular inversion, powering, GCD, LCM, and primality testing.


Monitor the battery levels of your Apple devices through iCloud. The app offers a free tier with a banner ad, which can be removed with an in-app purchase that also unlocks a widget. Easily manage which devices are displayed.



Manage your account details, view bills and balances, and make payments securely on the go. Receive instant push notifications for important updates. Access nearly all website features directly from your mobile device.


This app reimagines the calculator experience with a freeform canvas, dynamic results, and linked numbers. It allows for easy everyday calculations, real-time graphing, and annotation, making complex math visualization intuitive.


View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.


Access hundreds of math and scientific characters directly from your keyboard. Type symbols anywhere in any app with ease. Includes numbers, trigonometric, algebra, and alphabetical symbols.


Transform your smartphone into a powerful magnification tool. Observe and record microscopic details with your phone's camera and a macro lens. Measure objects with a scale bar and add notes to your digital micrographs.


View and inspect the HTML, CSS, and JavaScript of any webpage directly within Safari. This app offers syntax highlighting, content editing for previewing changes, and the ability to share or copy the source code. Customize the font size and app icon for a personalized experience.


Easily convert between 12-hour and 24-hour time formats. This app helps you understand time differences and manage multiple time zones. Access key features with convenient widgets.


This utility app connects to various Bluetooth Low Energy accessories. It demonstrates multiple BLE profiles, including health and fitness sensors, allowing users to monitor data from devices like heart rate monitors and glucose monitors.