Pricing

The open-source version is free and has every feature. We also plan a hosted version for people who don't want to install anything or get a model key.

Available now

Open source

Free, MIT

You bring a model key and run it yourself.

Analysis engine, heatmap report and hot sentences
Command line, MCP server and Claude Code / Codex plugin
Editor app for desktop and browser
1,000-phrase hit lists and rewrite guidance
Self-hostable API

Get started

Coming soon

Hosted

Price not set

The editor, run by us.

The editor in your browser, nothing to install
No API key and no setup
Analysis and rewrite included

Follow releases on GitHub

Questions and answers

Is the free version limited?

No. Everything in the list above is in the repository. The hosted version will save you the setup and will have no features the open-source version lacks.

Will the open-source version stay free?

The code released so far stays MIT licensed, whatever happens to the hosted version.

Where does my text go?

With the open-source tools, to the model provider you configure and nowhere else. Details for the hosted option will be published before it launches.

When will hosted be ready?

There is no date yet. We will announce it in the GitHub releases.