Free tools Windows power users keep installed
One-click scans. No signup required.
Start by updating the app and your phone, then check the app’s own display options and your foldable’s multitasking settings. On Samsung Galaxy foldables, a Labs setting may allow apps to open in split-screen or pop-up view even if they were not designed for it. These are workarounds, not a guarantee that an app will adapt to the cover screen, unfolded display, or Flex mode. For lasting support, the app itself needs layouts that respond to different window sizes and device postures.
Try these fixes as a phone owner
- Update the app and system software. Install available updates before changing display settings. An update may help, but there is no guarantee it will fix a particular app.
- Look in the app’s settings. Check for tablet or large-screen layouts, navigation-pane options, or display controls. Not every app offers these.
- On a Samsung Galaxy foldable, check Labs. Open Settings > Advanced features > Labs and look for the available multi-window options. Samsung says “Multi window for all apps” can let apps open in pop-up or split-screen view even when they were not designed for that layout. The setting and menu availability can vary by model and software version. See Samsung’s Labs guidance.
- Check Flex mode expectations. If an app does not rearrange itself when the phone is partly folded, that may be an app-compatibility issue rather than a setting you missed. Samsung says Flex mode compatibility varies by app. If the layout makes the app difficult to use, send feedback to its developer. See Samsung’s Flex mode guidance.
- Treat letterboxing as a compatibility workaround, not a layout repair. Some device display or aspect-ratio controls may change how an app is presented, but they cannot guarantee that its controls or content will rearrange correctly. Android describes compatibility behavior as potentially acceptable but suboptimal; adaptive layouts are the durable fix. See Android’s adaptive-layout guidance.
What good foldable support should look like
A foldable has more than one useful configuration. An app may need to work on the narrow cover screen, the larger unfolded screen, and in resizable windows. A layout that simply stretches a phone interface can leave wasted space or make controls awkward to reach. On a larger display, an app might instead show a list and its selected detail side by side, while retaining a compact single-pane layout on the cover screen. Samsung recommends optimizing for each screen; Android’s adaptive-app guidance uses two-pane list-detail as an example of making productive use of space.
As an Amazon Associate I earn from qualifying purchases.
When judging whether an app works well, check the situations that matter to your use rather than looking for a universal foldable-compatibility score:
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →- Cover screen and unfolded inner screen.
- Compact single-pane and expanded layouts that make meaningful use of space.
- Portrait and landscape orientation.
- Full-screen use and resizing in split-screen or pop-up windows.
- Ordinary unfolded use and hinge- or posture-aware behavior, if the task benefits from it.
How developers can build for foldables
Adapt to the current window size
Build around the app window’s available dimensions instead of assuming one phone-shaped viewport. Android recommends using window size classes to choose an appropriate adaptive layout. Keep a suitable compact arrangement for the cover display and use expanded space for useful content, such as list and detail panes. Android’s guidance describes adaptive support across screen sizes, resizable windows, orientations, and folded and unfolded displays: Getting started with adaptive layouts and supporting different display sizes.
#1 Best Overall
- SPLIT THE VIEW. MULTITASK¹ TO THE MAX: Productivity never felt this powerful. Use up to three apps¹ at once on the expansive inner screen of Galaxy Z Fold8 Ultra. You’ll enjoy plenty of space to work, play, connect and more.
- MULTITASKING MADE SMARTER WITH AI: Stay one step ahead with AI² that suggests which apps you might need next. Then view those multiple windows side by side on the large screen of your Galaxy Z Fold8 Ultra.
- ANY SHOT, ALL THE DETAILS: Dive into the details of any image with our best camera on a foldable smartphone. Galaxy Z Fold8 Ultra boasts a 200MP camera — and an upgraded 50MP Ultra Wide lens — for both stunning wide shots and extreme close-ups.
- ELITE CHIPSET. FLUID GRAPHICS: Experience what’s possible with our most advanced Galaxy Z Series processor. From immersive gaming and speedy multitasking to the latest Galaxy AI³ features, the Snapdragon 8 Elite Gen 5 keeps everything running seamlessly.
- THE BATTERY YOU’VE BEEN WAITING FOR: It’s the battery you’ve been wanting in a foldable cell phone. Galaxy Z Fold8 Ultra packs a powerful ultra-sized⁴ battery in an ultra-slim design. Plus, with Super Fast Charging 2.0⁵, charge up faster than ever before.
Handle folding, rotation, and resizing without losing the user’s place
Folding or unfolding, rotating, and entering multi-window can change the app’s available configuration. Ensure that the layout responds and that important state—such as the current selection or in-progress work—survives the change. Samsung notes that users frequently open and close Z Fold devices and recommends an optimized layout for each screen. Avoid treating a larger viewport as merely a stretched portrait interface. See Android’s adaptive-app guidance and Samsung’s foldable design guidance.
Use fold-aware information only when the experience needs it
If the interface depends on the hinge or device posture—for example, positioning controls differently when the phone is partly folded—use foldable window APIs rather than guessing from screen dimensions alone. Android points developers to Jetpack WindowManager for fold and hinge features. Not every app needs posture-specific behavior; responsive layouts remain important either way. See the Android Developers Blog’s Android 16 large-screen overview.
Check Android version and target SDK before relying on orientation locks
Behavior is version-specific. Android’s app-orientation guidance says apps targeting Android 16 (API level 36) or higher do not use the orientation property to lock display orientation or prevent rotation on large displays. The Android Developers Blog describes Android 16’s baseline behavior for large-screen devices with a smallest width greater than 600 dp and discusses an opt-out as of that post. That threshold is a platform criterion, not a measure of app compatibility; verify current Android guidance for the app’s target SDK and release requirements. See Android’s orientation, aspect-ratio, and resizability guidance and the Android 16 large-screen overview.
Test the configurations users will actually encounter
Exercise the app on the cover and unfolded displays, in portrait and landscape, and in full-screen and resizable multi-window modes. Check state preservation as the configuration changes. Add posture and hinge checks where they affect the task. Google’s adaptive-app guidance identifies a Pixel Fold emulator, so developers can begin testing without buying a foldable; a real device can reveal behavior specific to its hardware or manufacturer settings. See Google’s adaptive-app getting-started guide.
Quick Recap
Rank #3
- Foldable AMOLED, Main display: 6.9" FHD+ pOLED 2640x1080, External display: 1.5" OLED 194x368, 282ppi, 4200mAh Battery
- 128GB ROM, 8GB RAM, Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4nm), Octa-core, Adreno 644, Android 13
- Rear Camera: 64MP, f/1.7, (wide) + 13MP, f/2.2 (ultrawide), Front Camera: 32MP, f/2.4 (wide)
- 3G: 1/2/4/5, 4G LTE: 1/2/3/4/5/7/8/12/13/14/17/18/20/30/38/39/40/41/48/25/26/28/29/66/71, 5G: n1/2/5/7/12/14/20/25/26/28/38/40/41/66/70/71/77/78 - Single SIM
- T-Mobile Unlocked Device is Fully Unlocked and is compatible with other GSM carriers and CDMA carriers such as Verizon, Metro, Boost, Sprint, etc,.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
