Does Gratis work on iPhone Duo?
Probably, but it's not confirmed. Gratis was updated on 26 October 2026 (version 4.11.0), after Apple's iPhone Duo tools came out, but Gratis ic ve Dis Ticaret Anonim Sirketi doesn't mention iPhone Duo. Apps built with Apple's standard components fill the inner screen on their own once rebuilt.
- On iPhone Duo
- Updated, unconfirmed
- Developer
- Gratis ic ve Dis Ticaret Anonim Sirketi
- Category
- Shopping
- Current version
- 4.11.0 · 26 October 2026
- App Store rating
- 4.2 out of 5 (59,924 ratings)
- Last checked
How we know
Updated since Apple's iPhone Duo tools came out (5 October 2026), but the developer doesn't mention the Duo. Apps built with Apple's standard components fill the inner screen on their own. See it on the App Store
History on iPhone Duo
- · Updated, unconfirmed (version 4.11.0)
Other Shopping apps on iPhone Duo
-
MUJI アプリRyohin Keikaku Co.,Ltd. · ShoppingUpdated, unconfirmedUpdated 14 October 2026 -
マツキヨココカラ公式アプリ株式会社マツキヨココカラ&カンパニー · ShoppingUpdated, unconfirmedUpdated 22 October 2026 -
ShopShopify Inc. · ShoppingAdaptedApple's list, 22 October 2026 -
DAISOアプリ株式会社大創産業 · ShoppingNot yetLast update 22 July 2026 -
しまむらパークしまむら · ShoppingUpdated, unconfirmedUpdated 5 October 2026 -
ジーユーG.U.CO.,LTD · ShoppingUpdated, unconfirmedUpdated 27 October 2026 -
ヤマダデジタル会員BIPROGY Inc. · ShoppingUpdated, unconfirmedUpdated 27 October 2026 -
MUSINSAMUSINSA Co.,Ltd · ShoppingUpdated, unconfirmedUpdated 21 October 2026
All apps on iPhone Duo in Japan →
Got an iPhone Duo? How does Gratis look on the inner screen?
No owner report yet for version 4.11.0.
Still looking for the iPhone Duo itself? Restocks sell out within minutes: get an alert the moment one lands near you.
Good to know
Does Gratis work on iPhone Duo?
Probably, but it's not confirmed. Gratis was updated on 26 October 2026 (version 4.11.0), after Apple's iPhone Duo tools came out, but Gratis ic ve Dis Ticaret Anonim Sirketi doesn't mention iPhone Duo. Apps built with Apple's standard components fill the inner screen on their own once rebuilt.
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 5 October 2026, use the whole display.
When will Gratis be adapted to iPhone Duo?
Only Gratis ic ve Dis Ticaret Anonim Sirketi knows. We check Gratis 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 (22 October 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.