What iPhone app can search text inside images and PDFs I saved?

The gap in Apple's tools is that each one has its own search. Photos finds words in images. Files finds words in many PDFs. If you cannot recall if something was a scan, a screenshot or a document, you end up searching twice or more.

Nemos reads images on your device, and it searches PDFs, documents, spreadsheets and ebooks by their contents. A PDF that is only a picture of pages, such as a phone scan, also needs text recognition. Nemos handles those too, though poor scans give poor results.

Results appear together, and Spotlight can reach them from the Home Screen. If an item is in a Face ID locked folder or hidden, it stays out of general search unless you are inside that context, which is on purpose.

When something else fits better: for desktop search over huge document archives, a computer tool such as DEVONthink goes much deeper. Nemos suits what you collect on your phone. The free plan covers unlimited saves with your newest 50 open, so you can test this on a real week of saving before you pay anything.