Octovigintuple Calc by Hideaki Uchikoshi

10+ similar apps compared and reviewed
Whether you want more options like CalculatorRe or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.





A free calculator app offering a clean interface with essential functions. It includes a detailed calculation history, allowing users to easily copy and paste numbers. The app also features a simple time interval calculator.






This app bridges the gap between simple calculators and complex spreadsheets. It allows for natural language input, variables, and advanced functions, making calculations quick and easy to check. Share your calculations via a permalink.


Enhance your math experience with a powerful scientific calculator featuring over 40 aesthetic themes. It offers a professional engine for various math levels, a programmer mode, and a history tape for easy recall. Customize your calculator's look and feel while tackling complex problems.


Save numbers and memos visually on your screen by dragging and dropping them. This app also includes a sticker pack featuring over 20 dog breeds for dog lovers.


A scientific calculator for iPhone and iPad offering large, uncluttered buttons for efficient calculations. Easily access advanced functions with intuitive swipes and customize your experience with background and display options.