Free to start. Pro when you need more.

Free is a complete research library that never expires: 1 GB of storage, sync across every device and welcome usage to try the AI. Pro raises storage to 10 GB and adds LaTeX, Typst and unlimited collaborators, with monthly usage for $20 or three months of usage at $49. Fair-use limits apply to every plan; see fair use.

Free

A complete research library, free for good.

$0forever · no card

No time limit · your library never expires

  • The whole library, for goodReader, notes, highlights, imports, search and citations
  • Synced across all your devicesOn the web, iPhone, iPad, macOS, Windows (beta) and Linux (beta) today; Android is coming soon
  • 1 GB storageAbout 200 papers across projects you own
  • Welcome usageFor processing papers, asking questions and writing help (1,000 credits). Once per person, to use within 30 days of first verified sign-in.
  • Plain writing with PDF exportLaTeX and Typst are read-only
  • You and one collaboratorPer project you own; pending invitations count
Sign up for free →

Pro

$20per month

Renews monthly · cancel any time

$49instead of $60once · 3 months

You save $11 (18%) vs 3 months of monthly

  • Everything in FreeSame library and tools, with the limits raised
  • 10 GB storage10× FreeAbout 2,000 papers across projects you own
  • Monthly usage3× FreeUsage for three months8× FreeFor processing papers, questions and writing help (3,000 credits a month). Unused usage expires at reset.For processing papers, questions and writing help (8,000 credits in all). Paid once; never renews.
  • LaTeX and TypstPro onlyCreate, edit and compile, alongside Plain writing
  • Unlimited collaboratorsBring your whole group into projects you own
+ extra credits · pro add-on$10

1,000 extra credits that never expire, used after your plan's usage. Bought while Pro is active; extra credits you already have stay spendable on Free.

Start on Free, upgrade later →

Choose Pro in Plan & credits. Everything you add on Free carries over.

The same AI tools on both plans

  • Paper summaries and references
  • Cited Threads answers
  • Section drafting
  • Discover scans and digests
  • Methodology comparison
  • Research gaps
  • Summary translation

Every AI action, Threads question and Discover scan draws on your plan's usage on Free and Pro alike. Extra credits are used after your plan's usage, and failed work is refunded. Plan & credits shows how much you have used, with the details behind it.

Prices in USD; US sales tax is added at checkout.

Free for everyone. Pro for the group.

Give each researcher a code for Pro, 3 months: 10 GB of storage, LaTeX and Typst, unlimited collaborators and 90 days of Pro usage from redeeming (8,000 credits). Nothing renews, and everyone keeps Free and their library afterwards.

Need one shared allowance for the whole group? Lab pools monthly usage across the group (1,500 credits per seat). Ask about Lab →

Make your next paper easier to write.

Free forever · no card

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