Folduo Fold8 v77 — original glass preview

Experimental Fold8 app animation with an original glass renderer.

Install

1. Download Folduo-Fold8-0.1.27-fold8.36.apk from Assets below and install it on your Fold8. Only the APK is required; source-code ZIP files are for developers.
2. Install and start Shizuku, then authorize Folduo and allow it to display over other apps.
3. Close and unlock the phone, open Folduo Fold8 Test, and tap Start animation. Open your usual apps normally.

Complete setup, gestures, settings, and recovery guide

Included

• Original glass projection with native Gaussian frost; no external shader download or foldtoduo shader in the APK.
• Normal Start/Stop and notification controls, with no trial timer.
• Blur strength, responsiveness, outer-screen fade, and Reset settings.
• Existing launcher, saved wallpapers, and app task continuity retained. The inner display uses Folduo's Home, Recents, and Back gestures while active.

Status and limits

Tested on Galaxy Z Fold8 SM-F971U, Android 17 / One UI 9. Other devices and firmware are unverified. Both displays remain available while active, which uses extra battery. Transitions use frozen images; protected content cannot be captured. Stop Folduo before uninstalling. Restart Shizuku after reboot.

The app captures screen images in memory while enabled and unlocked. It does not save or upload them and has no Internet permission. This pre-release uses the existing development signing key and the upstream package ID. It updates matching locally installed builds; differently signed builds cannot update each other. Permanent release signing/identity remains future work.

Validation: 56 JVM tests, seven on-device rendering tests including full-panel reversals, and the normal Start/Stop/Resume/update-restore check without adopted shell permissions. Glass depth is still being tuned; this preview can look like standard blur.

SHA256SUMS is provided to check the downloaded APK. License notices are bundled inside the APK and in the source repository.