Opal Reader

Read PDFs and EPUBs on iPhone Duo

Opal Reader Introduction

Opal Reader is a PDF and EPUB reading app that places a notebook beside the page. On iPhone Duo, users can unfold to read their book and take notes side by side, then fold it closed to continue reading in a compact view with their place saved. The app is also available on iPhone and iPad.

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More about Opal Reader

Pricing

Paid

Listed

Nov 11, 2026

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