Systematic reviews
A review workflow you can defend
A systematic review lives or dies on its trail: where each paper came from, why it was excluded, which passage a number was taken from. PaperLab keeps that trail on your machine, from the first query to the chart.
In the app today
Search free sources at once
arXiv, Crossref, CORE, Unpaywall and Semantic Scholar in one query, merged into one list with the sources that found each paper.
Group the review in a workspace
Every paper, note and chat of the review in one place, and a chat that answers across all of it with citations.
Follow references both ways
What a paper cites and what has cited it since, ranked for your library, with free PDFs imported in a click.
Extract data you can trace
Capture a results table or a single number, and every point on your chart links back to its page.

Coming in the next release
These are built and in the source on GitHub, and ship with the next desktop release. Star the repository to get that release in your feed.
Saved searches with a hit pool
Run a query across sources, page it to the end, and keep every hit with where it came from.
Two-stage screening
Title-and-abstract screening, then full-text eligibility with a reason for each exclusion.
Snowballing
Grow the pool from your included papers, backward through references and forward through citations.
PRISMA counts and export
The flow numbers kept as you go, with a breakdown of exclusion reasons, ready for the methods section.
What it won't do
PaperLab doesn't get past a paywall. When no free copy of a paper exists, it links to the publisher's page and you add the PDF yourself. And it doesn't screen for you: every include and exclude is your decision, recorded with its reason.
Reviewing in a field PaperLab hasn't met yet? Tell me which databases you search: a new paper source is one of the most useful things to add.