Calcish: Run JavaScript + AI 17+

JavaScript calculator notebook

Koding Robots doo

    • 5.0 • 1 Rating
    • Free
    • Offers In-App Purchases



Calcish is a universal tool that allows you to quickly do calculations, run code, and chat with local or remote AI easily using the notebook interface.

If you know JavaScript, you already know how to use Calcish, and will discover that it's more convenient than a browser console or the Node REPL for quick throw-away tasks, exploratory programming, or data manipulation, because of the better visual representation of results, the ability to re-edit and re-run code quickly, and lots of useful functions.

Calcish adds optional advanced features to JavaScript for convenience:

- Math mode brings big numbers for more precise calculations than the JavaScript's default number type.
- Fractions mode allows you to calculate with fractions (1/2 + 1/3 = 5/6).
- Vectors & matrices mode enables vector and matrix operators for arrays ([1, 2] + [3, 4] = [4, 6]).
- Decimal number type and literal for exact currency calculations.

If you're new to programming or JavaScript, getting started is easy. We have good documentation and you don't have to configure anything. You can start using Calcish as a calculator and then discover its various functions as you go.

Calcish is available from anywhere. Use a global hotkey or click on the menu bar icon to open the scratchpad, which floats above other apps, like Spotlight. Once you're finished, you can save it as a codebook for future reference or editing, or clear it.

Use private local or remote AI. Calcish comes with large language models: use AI cells to chat with various state-of-the-art local AI models for enhanced privacy, or talk to GPT-4, GPT-3.5 Turbo, Google Gemini Pro, Cohere and TextSynth via API (bring your own API key). LLMs are also available from code, so you can experiment with custom prompting, or create your own functions that use AI.

Calcish supports the following AI models:

Remote (use API key):

- OpenAI GPT-4 Turbo
- OpenAI GPT-4
- OpenAI GPT-3.5 Turbo
- Google Gemini Pro
- Cohere Command
- Cohere Command Light
- TextSynth GPT-J
- TextSynth GPT-Neox-20B

Local (download with one click and run on your Mac for free):

- Meta's Llama 2 7B-Chat
- OpenChat (based on Mistral)
- Intel's Neural Chat 7B (based on Mistral)
- TinyLlama-1.1B Chat


The basic version is free and includes up to 7 notebooks and unlimited Scratchpad use.

You can unlock Calcish Pro with a yearly subscription for more features. 
Calcish Pro subscription will be charged to your App Store account and will automatically renew within 24 hours prior to the end of the current subscription period unless auto-renewal is disabled beforehand. You can manage your subscriptions in your App Store account settings.

Terms of Use:
Privacy Policy:

What’s New

Version 1.1

- Added Google Gemini Pro model
- Fixed bugs

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Q ✨ ,

Love at first sight

I’ve only used it ten minutes, but I can already say this app and I will be in a long relationship. Just the feature of a global hotkey to open a pop-up window to do long-form maths or run arbitrary Javascript is very useful (no more need to open DevTools → Console to test JS scripts). Then, being able to chat about my work with a LLM (including local!) is a game changer.

App Privacy

The developer, Koding Robots doo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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