OpenQuill

The best place to think with a pencil, where your AI can sit next to you on the page.

OpenQuill is an open-source notes app for iPad, iPhone and Mac. Write by hand, type and mark up PDFs, and invite Claude or another AI to read the page and write alongside you.

Public beta on TestFlight soon.

• Your notes stay on your device, or in your own iCloud.
• AI runs on your device by default. Add your own key to use Claude or another model.
• Connect Claude to your notebooks if you want it to help from the Claude app.
• No ads, no tracking and no analytics.
• Open source under the Apache License 2.0. Source available at launch.