An e-book reader for EPUB, Kindle formats and PDF, updated for the Duo
Does Common Reader work on iPhone Duo?
According to its developer, yes. FoldHunt's editor hasn't checked Common Reader on iPhone Duo yet, so it's listed as a claim.
- Developer claimedThe developer, in the release notes for version 1.4.0 (released October 10, 2026), which list "Added support for iPhone Duo" among other changes, and also add an option to turn off two-column layout. The notes say nothing more about the Duo. There are no pictures of it on the Duo yet. The App Store seller is 天宇 高 (id 6770067434).
Adapted for the fold
We're waiting on details of exactly what Common Reader changes for the fold. Are you the developer? Tell us.
About Common Reader
Common Reader reads EPUB, AZW3, MOBI, TXT, Markdown and PDF books, including vertical and right-to-left text, with page turns that curl like paper and books read aloud. Version 1.4.0 supports iPhone Duo, the release notes say, and adds an option to turn off two-column layout. There are no pictures of it on the Duo yet.
Related guides
The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.
Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
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