Blogging Robots

Launching Calcish

We are happy to announce the launch of our new app for macOS, Calcish.

Calcish is an app for macOS that combines the functionality of a calculator, code editor, and AI assistant into one user-friendly notebook interface.

Screenshot of Calcish.

For coders and programmers, Calcish serves as an upgraded JavaScript playground. You can quickly test code snippets, manipulate data structures, call APIs, and see results formatted neatly. Calcish is based on QuickJS, which adds useful math features like high-precision calculations, fraction arithmetic, vector/matrix operations, and decimal number types.

But Calcish isn’t just for developers. It’s designed to be an accessible all-in-one notebook for anyone who needs to crunch numbers, explore algorithms, or get assistance from AI. The clean notebook layout makes it easy to mix text, code, rich outputs and AI-generated content.

A global hotkey summons Calcish Scratchpad from anywhere. Your scratchpads can be saved as “codebooks” for later reference or editing.

One of Calcish’s standout features is that along with support for large language models like OpenAI GPT-4, GPT-3.5 and Cohere via API, it provides a one-click download for open source local AI models, which run directly on your Mac for better privacy.

Calcish is available for free on the Mac App Store. You can search for “Calcish” or find a link on Check it out!