Games v8.7.0
Does Soul Knight work on iPhone Duo?
It works, but with black bars. Soul Knight 8.7.0 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 8.7.0, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v8.7.0
- Oct 20, 2026
- Duo in release notes
- Not yet
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 Soul Knight. 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 8.7.0 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 8.7.0 · Oct 20, 2026
Version 8.7.0 "Fuel Talents, Ignite Skills" is now live! [New Event] Trial of Talents: Phase 2 is out! New and improved synergies between talents and skills unlock more combat mechanics and gameplay combinations. Participate in the event to earn rewards such as the weapon skin Patrol 5-860X for Windforce and Fish Chips. "Weapon Evolution!": Sign in daily to claim rewards, including the Selectable Universal Weapon Evolution Fragments after 7 and 14 days of sign-ins! Knight's Perks: Available for a limited time! Unlock the Berserker skin "MooMoo," and claim rewards including Character Trial Vouchers and Weapon Vouchers. [New Skill] Arcane Knight [Arcane Missile]: Weave emblem powers into endless arcane cascades. [New Addition] Training Supply Vol. 9: Complete tasks to earn 2 Fish Chips, a premium skin of your choice (1 of 6), and more rewards! Unlock the Advanced Training Supply for additional rewards, including the Captain skin Lightrack Leon. Added Arcane Knight's "Tetraform" skin and 6 other skins. Added 8 weapon skins, 3 of which have evolved effects. Added the Fish Chip King pet and a bare-hand skin as Fish Chip purchase milestone rewards. Added new rewards to the Golden Frame Store. [Optimizations and Adjustments] Adjusted and optimized the Alchemist's second skill. Adjusted and optimized Arcane Knight's passive skill. Optimized the Weapon Evolution event interface. Added Filter by Skinline in Shop.
Questions
Does Soul Knight work on iPhone Duo?
It works, but with black bars. Soul Knight 8.7.0 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Soul Knight 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 Soul Knight 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 Soul Knight 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 Soul Knight 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 Soul Knight within about a day of its release and update this page.
What can I do about the black bars until then?
Use Soul Knight 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.