Nerdi is in closed beta, and beta feedback is genuinely useful. Email korayozcan33@gmail.com.
Things worth mentioning in a report
What you were doing, and what happened instead.
The paper's title, if it was about one specific paper.
Your iOS version and iPhone model.
Known limits during the beta
A PDF link comes from the publisher and can break or sit behind a paywall without warning. An "open access" label is the source's claim, not a guarantee.
Papers come from a fixed selection, not the whole of OpenAlex.
Signing in is optional. If you never sign in, your library exists only on your device and is lost if you delete the app.