How it works
Read the evidence. Keep a question in view.
Start with a research explanation, inspect its sources and limits, then watch the question you want to revisit.
- 1. Find a question. Browse concepts or search the library. Each explanation links to the underlying studies.
- 2. Check the boundaries. Read which populations, methods, and outcomes were studied. Citation counts are not evidence strength scores.
- 3. Watch it. Create a free account and select up to three questions. Radar shows coverage and check status; the Brief is optional.
What does PaperFren do?
PaperFren explains selected open-access research, shows the findings and limitations with source links, and lets you watch updates to covered research questions.
Is PaperFren free?
Public research explanations and study tools are free. A free account includes one project, three watches, and a Brief in the app. Email availability is shown during setup and in Settings; when available, Free email is monthly. Paid plans add capacity and more frequent email cadence.
What does a research watch cover?
An exact claim watch follows one recorded finding. A concept watch follows updates to that concept on PaperFren. Keyword and corpus monitors use their stated coverage; they do not search all published literature.
Does every alert mean the scientific conclusion changed?
No. Coverage updates can include older studies added to a page. Reviewed new research, interpretation revisions, and corrections are separately labeled and include dated reasoning and source references.
Does Ask search the whole literature?
Ask retrieves PaperFren's existing curated explanations and matching passages from readable private uploads. It does not perform a live literature search or a new systematic review.
How can I report missing evidence or an error?
Use the evidence and corrections page to send the page link, the statement, and a supporting source. You do not need a paid account to report an issue.
Evidence and corrections · Plans and limits
Explore a research question