PDF app for iPhone Duo: read, ask and translate side by side

Key facts

Works on: iPhone, iPhone Duo (folded and unfolded) and iPad, including Split View
Folding: Nothing is lost: the page, the zoom, the conversation and a scan in progress carry over when you fold or unfold.
Upload: Scans, conversions, signatures and compression run on the device. The AI features send the text they need only when you use them, after asking you once.

01iPhone Duo

Library and document, side by side.

Unfolded, the Library stays on one side while the document opens on the other, in the system split view. Tap another file and it takes the document's place; the list stays where it is.

02iPhone Duo

Thumbnails beside the PDF. Two pages in landscape.

The Reader shows the page thumbnails next to the document, so jumping to a page is one tap. Turn the phone and two pages sit side by side, like an open book.

03iPhone Duo

Ask, with the PDF in view.

The conversation sits next to the document. Tap a cited source and the PDF jumps to that page, without closing anything. One button puts the PDF in full screen; the same button brings the conversation back.

04iPhone Duo

Original and translation, page for page.

Translate shows the original on one side and the translation on the other, with synchronized paging: turn a page and both move together.

05iPhone Duo

Drop files straight into the Library.

Open Files or Photos beside Nimbo and drag PDFs or images into the Library. They are imported on the device, like with the Share extension.

06iPhone Duo

Laid out for the big screen.

Home, Create with AI and the Nimbo Pro screen are laid out for the inner screen instead of stretching the iPhone layout.

07iPhone Duo

Fold. Unfold. Nothing is lost.

The page you are on, the zoom, the Ask conversation and a scan in progress all carry over when you fold or unfold. Closed, you see the last screen; open, the last two.

iPad

The same layouts on iPad

Everything on this page follows the width available, not the device: the two-pane layouts also serve iPad and Split View, and the one-column layout serves every iPhone.

Frequently asked questions

Does Nimbo work on iPhone Duo?

Yes. Folded, Nimbo works like on any iPhone. Unfolded, it uses the inner screen for two-pane layouts: the Library beside the document, thumbnails beside the PDF, the Ask conversation or the translation beside the original.

What happens when I fold or unfold?

The layout switches between one and two panes, and you stay where you were: same page, same zoom, same conversation, and a scan in progress continues.

Does it work on iPad too?

Yes. The same layouts follow the width available, so they serve iPad and Split View as well.

Is my document uploaded?

Scans, conversions, signatures and compression run on the device and send nothing. The AI features (Create, Transform, Translate, Ask) send the text they need to our server only when you use them, after asking your permission once; requests are not stored and generated documents are deleted within 24 hours.

Is everything free on iPhone Duo?

The rules are the same as on every iPhone. Scanning to PDF, importing photos and files and the Library are free. The PDF tools, signing included, and the AI features are part of Nimbo Pro. The monthly plan starts with a 3-day free trial for new subscribers.

Private by design

Scans, conversions, signatures and compression run on the device. The AI features send the text they need only when you use them, after asking you once.

See how it works, step by step

Unfold. See the whole document.