Games v0.1.140
Does Police Chief work on iPhone Duo?
Yes. Police Chief 0.1.140 is built with the iOS 27.1 SDK, so it can use iPhone Duo's whole inner display. We haven't seen Duo-specific features yet.
At a glance
- Inner display (7.6″)
- Full screen
- Outer display (5.4″)
- Works normally
- Built with
- iOS 27.1 SDK
- Version 0.1.140, read Nov 3, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v0.1.140
- Nov 2, 2026
- Duo in release notes
- Not yet
About Police Chief
Police Chief is made by VoyagerOne and first came out on the App Store in May 2026. It's #67 on today's US App Store top charts. It has 43,097 ratings on the US App Store, averaging 4.9 stars. Version 0.1.140 came out on Nov 2, 2026 and needs iOS 15.0 or later. It's free to download. Among the 238 games we track on the US App Store, 34 already fill the inner display, 9 are partly adapted and 187 still show black bars. By number of ratings, Police Chief is #145 of them.
From its App Store listing:
The world is shrouded in crime. Cities teem with gangs, smuggling rings, and assassin syndicates — citizens live in fear. As the newly appointed police chief, you must start small and strategically expand a local precinct while safeguarding the city. Grow your reputation step by step: expand office space, establish new departments, streamline paperwork, recruit elite officers, and equip your team …
On the inner display
The app reaches the edges of the inner display. Text and controls stay a comfortable size instead of being blown up.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Police Chief. 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 0.1.140 is built with the iOS 27.1 SDK
Apps built with the iOS 27.1 SDK or later can use the whole inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.5 SDK
- : Black bars → Full screen — built with the iOS 27.1 SDK
Latest release notes
Version 0.1.140 · Nov 2, 2026
[New Content] 1. Limited-Time Event: The Halloween: Most Wanted event series is here! Get into the holiday spirit, Chiefs, and earn generous rewards and exclusive holiday skins! [Optimization and Adjustments] 1. Adjusted the registration time for Alliance Training 2. Optimized the Island system controls and UI text [Fixed Content] 1. Fixed the UI overlap issue in Oilfield Strike 2. Fixed an issue where Alliance Mobilization League changes were displayed incorrectly
Questions
Does Police Chief work on iPhone Duo?
Yes. Police Chief 0.1.140 is built with the iOS 27.1 SDK, so it can use iPhone Duo's whole inner display. We haven't seen Duo-specific features yet.
Does Police Chief 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 Police Chief 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.