Is it Duo-ready?

Blackjack 21

WISE WAVE CORPORATION LIMITED

View on App Store ↗Games

Does Blackjack 21 work on iPhone Duo?

Not known yet. Blackjack 21 was updated on October 29, 2026, after Apple began accepting iPhone Duo builds, but the release notes don't mention iPhone Duo. No owner has reported how it runs yet. If you have one, you can add the first report.

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By position

Outer screenNo data
Inner screenNo data
Half-folded (tabletop)No data
Keeps your place when foldingNo data

From recent reports. “Didn't try” answers aren't counted.

App Store updates

All apps
Version 76.21.0

Released after Duo submissions opened

Checked every few hours. Only builds made with the iOS 27.1 SDK, accepted since October 5, 2026, can use the whole inner display. Owner reports confirm whether an update did.

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How does Blackjack 21 run on your Duo?

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Positions you tried

Outer screen
Inner screen
Half-folded (tabletop)
Keeps your place when folding

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iPhone Duo status of Blackjack 21
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