JJWorld(Beijing) Network Technology Company Limited
Games v6.02.01
Does JJ斗地主-欢乐棋牌休闲合集 work on iPhone Duo?
It works, but with black bars. JJ斗地主-欢乐棋牌休闲合集 6.02.01 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- iOS 26.5 SDK
- Version 6.02.01, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v6.02.01
- Oct 8, 2026
- Duo in release notes
- Not yet
About JJ斗地主-欢乐棋牌休闲合集
JJ斗地主-欢乐棋牌休闲合集 is made by JJWorld(Beijing) Network Technology Company Limited and first came out on the App Store in February 2012. It has 692 ratings on the US App Store, averaging 4.6 stars. Version 6.02.01 came out on Oct 8, 2026 and needs iOS 13.0 or later. It's free to download.
From its App Store listing:
JJ斗地主，专业棋牌平台，赛制严谨，竞技公平。每一局都凭实力说话，斗得过瘾，赢得畅快。24小时赛事不间断，各路高手都在这儿，等你同台过招！ 游戏特色介绍： 【新鲜不断】 趣味玩法层出不穷，游戏画质持续跃升，打造沉浸式高端牌桌体验，方寸之间尽享棋牌博弈的魅力。 【玩法多样】 从经典斗地主、欢斗、赖斗，到麻将、掼蛋、升级、象棋、跑得快，国民玩法一应俱全，百玩不厌，样样都有新惊喜。 【专业办赛】 从2007年深耕至今，自研赛制护航每一次对局。回馈赛、锦标赛、竞技场等多种赛事随心选择，场场精彩，荣誉只属于真正的强者。 【文明打牌】 JJ斗地主倡导文明竞技，绿色无广告，环境纯净，玩家素质高。安心落座，专注每一手牌，尽情发挥牌技，越斗越开心。 【自动续费黄金卡】 --黄金卡权益：连续包月黄金卡每隔1个月可获得15000金豆，每日再返1500金豆。 --订阅周期：1个月 --订阅价格：30元/月 --付…
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including JJ斗地主-欢乐棋牌休闲合集. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
App build,
Version 6.02.01 is built with the iOS 26.5 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.5 SDK
Latest release notes
Version 6.02.01 · Oct 8, 2026
1.春天斗玩法全新上线，真人1V1，开局即燃； 2.水上乐园主题正式开放，斗地主游戏焕然一新； 3.游戏引擎再进化，加载更快，运行更稳。
Questions
Does JJ斗地主-欢乐棋牌休闲合集 work on iPhone Duo?
It works, but with black bars. JJ斗地主-欢乐棋牌休闲合集 6.02.01 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does JJ斗地主-欢乐棋牌休闲合集 work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use JJ斗地主-欢乐棋牌休闲合集 in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Why does JJ斗地主-欢乐棋牌休闲合集 have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will JJ斗地主-欢乐棋牌休闲合集 fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of JJ斗地主-欢乐棋牌休闲合集 within about a day of its release and update this page.
What can I do about the black bars until then?
Use JJ斗地主-欢乐棋牌休闲合集 on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.