The Best Napkin Calculator and Notepad Alternative for Your Workflow
Napkin Calculator and Notepad is a unique blend of a notepad and a calculator, designed to make quick calculations on your phone seamless. With features like auto-save, variable support, and automatic evaluation of math expressions, it’s a handy tool. However, if you're looking for different functionalities, specific platform support, or simply exploring other options, there are many excellent Napkin Calculator and Notepad alternatives available.
Top Napkin Calculator and Notepad Alternatives
Whether you need more advanced calculation capabilities, enhanced note-taking features, or simply a different user experience, these alternatives offer compelling solutions for various needs.

Soulver
Soulver is a smart notepad with a built-in calculator, much like Napkin. It offers instant answers to calculations within your text, providing a natural way to work out problems. It's a commercial tool available on Mac, iPhone, and iPad, featuring side-by-side view, currency conversion, editable calculations, and natural language processing, making it a powerful alternative to Napkin.

Numi
Numi is a free Mac calculator app that allows users to describe tasks in natural language and receive instant, accurate answers. Its ability to handle expressions like "$20 in euro - 5% discount" makes it a highly intuitive Napkin Calculator and Notepad alternative. Key features include currency conversion, extensible plugins, and natural language processing.

OpalCalc
OpalCalc is a freemium calculator for Windows that operates much like a word processor, allowing natural language in sums and multi-line support. This makes it a user-friendly Napkin Calculator and Notepad alternative, especially for those who prefer a desktop application with features like currency conversion and portability.

Caligator
Caligator is a free and open-source calculator available on Mac, Windows, and Linux. It excels at natural language calculations and unit conversions, including weight and length. Its cross-platform compatibility and open-source nature make it a versatile Napkin Calculator and Notepad alternative for users across different operating systems.

Calculist
Calculist is a free, open-source, web-based, and self-hosted thinking tool that merges list management, notetaking, and task management. While not a direct calculator in the traditional sense, its ability to facilitate effective thinking for problem-solving makes it a compelling alternative for those seeking a more integrated organizational and computational tool, similar to Napkin's blend of notepad and calculator.

Blabr
Blabr is a free, web-based tool for scientific computing in the browser, offering interactive tables, sliders, and plots. While it doesn't explicitly list features that overlap with Napkin's direct calculation and notepad capabilities, its focus on interactive computation could appeal to users looking for a web-based scientific scratchpad.

Swift Calcs
Swift Calcs is a free, web-based collaborative computational notebook designed for modern engineering. It allows users to enter math as it appears on paper and get instantaneous results, with features like equation solving, formula building, and symbolic computation. This makes it a robust Napkin Calculator and Notepad alternative for more complex mathematical needs and collaborative environments.

Notepad Calculator
Notepad Calculator is a free and open-source web application designed for jotting down quick calculations. It allows users to mix free-form text with calculations and see results appear in the right-hand margin as they type, very similar to Napkin Calculator and Notepad's core functionality. Its simplicity and web accessibility make it an excellent direct alternative.

InstaCalc
InstaCalc is a free online calculator that uniquely blends numbers and words, automatically saving calculations. Its web-based nature and ability to mix text and calculations make it a strong Napkin Calculator and Notepad alternative, especially for those seeking an online, shareable solution.

Wakari
Wakari is a freemium web-based platform that provides Python data analysis via embedded iPython notebooks. While not a direct notepad-calculator in the same vein as Napkin, it offers a powerful environment for computational tasks and data exploration, suitable for users with more advanced scripting or data analysis needs.
Choosing the best Napkin Calculator and Notepad alternative depends on your specific needs, whether it's enhanced platform support, advanced features, or an open-source solution. Explore these options to find the perfect fit for your workflow and calculation requirements.