Does AnkiMobile Flashcards work on iPhone Duo?
Not yet. AnkiMobile Flashcards's current version (25.09, September 8, 2025) came out before Apple's iPhone Duo tools, so on the inner screen it opens in an iPhone-size window with black bars. It works, just not full screen.
- On iPhone Duo
- Not yet
- Developer
- Anki Software, LLC
- Category
- Education
- Current version
- 25.09 · September 8, 2025
- Popularity
- #13 in the top charts in the US
- App Store rating
- 4 out of 5 (2,370 ratings)
- Last checked
How we know
Its current version is older than Apple's iPhone Duo tools (October 5, 2026): on the inner screen it opens in an iPhone-size window with black bars. See it on the App Store
History on iPhone Duo
- · Not yet (version 25.09)
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All apps on iPhone Duo in the US →
Got an iPhone Duo? How does AnkiMobile Flashcards look on the inner screen?
No owner report yet for version 25.09.
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Good to know
Does AnkiMobile Flashcards work on iPhone Duo?
Not yet. AnkiMobile Flashcards's current version (25.09, September 8, 2025) came out before Apple's iPhone Duo tools, so on the inner screen it opens in an iPhone-size window with black bars. It works, just not full screen.
Why do some apps have black bars on iPhone Duo?
Because they were built before Apple's iPhone Duo tools. On the inner screen, an app built for an older iOS opens in an iPhone-size window on a black background; one built for iOS 27.0 uses more of it but leaves some space blank; only apps built with the iOS 27.1 SDK, which developers have had since October 5, 2026, use the whole display.
When will AnkiMobile Flashcards be adapted to iPhone Duo?
Only Anki Software, LLC knows. We check AnkiMobile Flashcards on the App Store again within about 1 h: this page changes as soon as a new version says it supports iPhone Duo.
Do apps that aren't adapted still work on iPhone Duo?
Yes. Every iPhone app runs on iPhone Duo: one that isn't adapted just doesn't fill the inner screen until its developer updates it.
How we measure
Sources: Apple's list of apps adapted to iPhone Duo (October 22, 2026) and each app's App Store record (version, release date, release notes, description). Apple doesn't say which tools an app was built with, so an app stays “Updated, unconfirmed” until its developer says more.