Plans & features

Everything OrbitSub does, and what each plan gets

Start free — no card. The whole toolkit is on every plan; paid plans raise the limits. These numbers are exactly what the app enforces.

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On every plan — including Free

The full toolkit ships to everyone. Paid plans just raise the limits above.

AI co-writer you approve

Ask, rewrite, and improve inline. Every AI edit arrives as a diff you apply or discard — nothing changes without you.

10,000+ citation styles

The full official CSL registry with locales. Cite as you write; the bibliography formats itself.

Source library

Add sources by DOI, .bib/.ris, or PDF — or connect Zotero and Mendeley in one click.

Chat with your PDFs

Upload papers and ask questions, pull quotes, and cite straight from them.

Live collaboration rooms

Write together in real time; readers suggest and the AI proposes to the whole room.

Export anywhere

Download your work as Word, PDF, or Markdown — free on every plan. Your work is always yours.

Publish & typeset

One-click publishing lays your work out like a journal, with a public provenance timeline.

Verified badge

Annual Pro and Max members get a verified badge on their profile across OrbitSub.

Free to write, free to publish. The first 500 to join become founding members — with a permanent badge.