Google is testing a native application locking function in the Android 17 QPR3 Beta 3 release, allowing Pixel users to secure individual applications with device-level biometrics or passcodes. ExtremeTech reported that the feature requires an active general device lock and does not currently support a separate PIN or fingerprint.
Android 17 QPR3 Beta 3 Introduces Multiple App Locking
The functionality builds upon earlier code spotted in development channels. Google previously tested a single-app lock in Android Canary 2603 before hinting at broader multi-app security in Android 17 QPR1 Beta 6. The current implementation arrived on October 29 through Android 17 QPR3 Beta 3, according to ExtremeTech.
Users enrolled in the beta program can activate the tool by long-pressing an application icon and selecting the app lock option. Alternatively, management of multiple locked programs is available inside the device settings under the security and privacy menu. This capability functions independently from Private Space, which isolates data inside a separate hidden profile on the hardware.
Hardware Eligibility and Missing Pixel 6 Support
The beta build runs across a wide array of hardware. Enrolled testers can install the software on devices ranging from the Pixel 6a up through the Pixel 11 family, including foldable hardware like the Pixel Fold and the Pixel Tablet.
Older devices miss out on the update entirely. The original Pixel 6 and Pixel 6 Pro are ineligible for this software release because their official support window concluded the month prior, as noted by ExtremeTech.
Concurrent System Patches and Bug Fixes
Alongside the security changes, Google bundled numerous software fixes into the Android 17 QPR3 Beta 3 deployment. Reporting from 9to5Google detailed dozens of addressed issues across the Pixel ecosystem, ranging from persistent UI message errors to camera performance adjustments.

The update resolves bugs where the Twitter application crashed when loading thread mentions, alongside fixes for display panels randomly toggling on and off during active usage. Developers also addressed poor video quality occurring when using a Pixel device as a webcam, and resolved a memory pressure bug that caused toast notifications to fail intermittently.
| Device Generation | Beta 3 Eligibility |
|---|---|
| Pixel 6 / 6 Pro | Ineligible (Support Ended) |
| Pixel 6a through Pixel 8 Pro | Eligible |
| Pixel 9 / 10 / 11 Families | Eligible |
| Pixel Fold / Tablet | Eligible |
Additional stability patches fixed a bug where the force-stop button in application settings failed to properly terminate running background processes. Audio adjustments also rectified a problem where equalizer frequency adjustment bars were visibly cut off at the top of the display interface.