Plans
Pay for the intelligence, not the PDF
Know what the evidence says. See when it changes. Understand why. All plans read the same explanations and sources. Researcher tells you what changed in the research you follow. Pro also tells you what changed underneath the studies already in your own projects.
Research Radar monitors are part of the Researcher plan.
Free
Read the evidence. Follow a few threads.
$0
No card needed
- Read every discovery and concept page, with sources
- Search papers, ask grounded questions, and compare studies on a claim
- Save up to 25 papers and upload 3 private PDFs
- Follow 3 topics and 5 concepts
- In-product PaperFren Brief of what moved
Student
Researcher tools at a campus price.
$7 / month
Billed $84 a year
- Same Researcher tools at a campus price, for an account on a university address
- Personalized Discover, library overlap, projects, and the weekly PaperFren Brief
- 5 Research Radar monitors when evidence on a matching claim moves
- Save 500 papers and upload 40 private PDFs
- Follow 40 topics and 80 concepts
- 14-day trial with card on file
Sign up with your university address. Card required at checkout.
Researcher
Follow your own questions and organize what answers them.
$14 / month
Billed $168 a year
- 5 Research Radar monitors — enough for the questions you are actively living with
- Personalized Discover, ranked against what you follow and what you saved
- Weekly PaperFren Brief of evidence changes in what you follow
- Projects: one question, the studies that bear on it, a comparison grid, APA/BibTeX/RIS, a read-only link
- Save 500 papers and upload 40 private PDFs, readable by Ask PaperFren
- Follow 40 topics and 80 concepts
- Ask 1,000 grounded questions a month
Card required at checkout. Cancel during the trial and you won't be charged.
Pro
PaperFren watches what moves underneath your own work.
$23 / month
Billed $276 a year
- Research impact alerts: when a claim moves, Pro names which of your own studies sit under it, and in which project
- The Brief daily instead of weekly — at most one email a day, on the days something moved
- 25 Research Radar monitors — a whole line of work under watch, not your few live questions
- 50 projects: one per review, chapter, or grant, each with its own comparison grid
- Follow a field rather than a corner of one — 100 topics and 200 concepts
- Save 2,000 papers and upload 150 private PDFs, readable by Ask PaperFren
- Ask 3,000 grounded questions a month
- Everything in Researcher
Card required at checkout. Cancel during the trial and you won't be charged.
PaperFren never sells access to papers; every study it explains is open access, and the original is linked from every page. Plans are independent of any other Fren subscription and can be cancelled from Settings. Student and Researcher unlock the same product tools; Student is the campus price for school emails. Pro adds research impact alerts — the movements that run through studies already in your projects, named claim by claim — a daily Brief instead of a weekly one, and room for a whole programme. If you are following questions rather than maintaining projects, Researcher is the right plan and we would rather you picked it.