For iPhone and iPad

PDF Algo Pro

The PDF app that understands your documents without taking them from you.

Read, scan, mark up, fill in and sign PDFs. On supported devices, ask a document a question and get an answer that shows the page it came from. Your documents stay on your device: no account and no upload.

Coming to the App Store. In testing with TestFlight now.

Support

What you can do with it

Get answers that show their page

Ask a question about a PDF and the answer comes only from that document, with the page it came from. Summaries and data extraction work the same way, and the app says so when the answer is not in the document. Needs Apple Intelligence on a supported device.

Scan paper into searchable PDFs

Scan with the camera, check the pages, then save. The text is recognised on your device, so you can search it and select it.

Mark up, fill in and sign

Highlight, draw, add notes, shapes and stamps, fill in forms, and place your signature. A saved signature is kept in the Keychain on your device only.

Organise, shrink and protect

Reorder, rotate and delete pages, merge documents, reduce the file size, and add or remove a password. Earlier versions are kept for 30 days, so a change can be undone.

Private by default

Your documents stay on your device, in a folder you can see in the Files app.

Read the privacy policy

No account to create.
No advertising and no tracking.
The app does not send your documents, your questions or the answers to us or to anyone else.

What you need

An iPhone or iPad with iOS 26 or iPadOS 26, or later.
Summaries, answers and extraction need a device that supports Apple Intelligence, with Apple Intelligence turned on. Everything else works without it.
The app is in English and French.

Built by Algorythmos.

Apple, iPhone, iPad, iPadOS, Apple Intelligence, Keychain, TestFlight and App Store are trademarks of Apple Inc.