Build a PDF on the cover, set the format beside the photo when open
Does HEIC & PDF to JPG Converter work on iPhone Duo?
Coming, says the developer. Artcoast Studio says version 2.7 is redesigned for iPhone Duo, but the App Store still lists version 2.6, which doesn't mention the Duo.
- Developer claimedArtcoast Studio (@DesignArtcoast) posted that HEICJPG 2.7 is redesigned for iPhone Duo, with screenshots of the cover and the open screen (@DesignArtcoast on X). The App Store seller is Dmitry Mashkin (id 6714468993). Version 2.6 (released September 28, 2026) is the latest listed, and neither it nor the description mentions the Duo.
Adapted for the fold
- Closed · Outer display
Photos to PDF on the cover
Closed, the cover shows the PDF's current page with the other pages lined up as thumbnails below, and buttons to add photos and arrange the pages.
- Open · Inner display
The photo beside its options
Open flat, the photo sits on the left and the format (JPG or PNG), compression and where to save it sit on the right, with the save button below.
About HEIC & PDF to JPG Converter
HEICJPG turns iPhone photos into JPG, PNG or PDF, offline. Artcoast Studio’s screenshots for version 2.7 show it redesigned for iPhone Duo: on the cover it builds a PDF from your photos, with the pages lined up below, and open flat the photo sits on the left with the format, compression and save options on the right.
On the ideas wall
All ideas
Shipped HEICJPG 2.7: it now saves PNG and compresses PNGs in bulk, which I needed for my own work last week. Also redesigned for iPhone Duo. Feedback welcome 👇 apps.apple.com/us/app/heic-pd…
Related guides
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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.
Is this your app?
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Sources: Artcoast Studio on X (x.com) · HEIC & PDF to JPG Converter on the App Store (apps.apple.com)
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Detail
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Launch partner: Named by Apple as an iPhone Duo launch partner.
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MVPlayer.app
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Immersive 180° and 360° video, with the controls below when folded like a laptop
Developer claimed: Florent Morin, the developer, in a post on X with a video of MVPlayer on the iPhone Duo, saying it will be available on the Duo on day one (@florentmorin on X). The App Store page does not mention the Duo yet.
- Closed
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- Book
- Standing
oblivious
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Vlog preview and moments that split at the Duo fold
Developer claimed: oblivious (@oblivious_film) posted its Duo layouts for each pose, due in version 2.2.0 (@oblivious_film on X).
- Closed
- Book
- Open