Why Annopane exists
Annopane was born in Berlin, out of everyday portfolio reporting at an investment firm: monthly reports were built with Claude as interactive HTML pages – with filters, charts, KPIs – and then failed on the last mile: on management's iPhones they couldn't be opened properly, let alone commented on. The detour was PDF, and with it the interactivity was gone.
Annopane closes that gap: a file from Claude, ChatGPT, Lovable or a Python script becomes an app on the phone, can be shared by link and commented on at the exact spot. The comments go back to the AI, which builds the next version.
What Annopane is – in one sentence
Annopane is a web app that opens HTML files, Claude artifacts, PDFs, Excel, Word and PowerPoint files like an app on your phone, shares them by link – even without an account – and collects comments at the exact spot.
Principles
Private first: without signing in, no file leaves the device. Data in the EU: cloud files live in the European Union. No tracking. Honest comparisons: on our comparison pages we say when another tool is the better choice.
Contact
Questions, wishes, criticism: hello@annopane.com. We read every message.