APKs downloaded from third-party sites like AppBrain should be scanned for malware.
While many of its features work on standard devices, having root access grants the app elevated permissions to launch restricted system-level activities that are usually blocked for security reasons.
While built for rooted ecosystems, the tool scales its features depending on active device privileges. Feature Category Without Root Privilege With Superuser (Root) Access Fully Functional Fully Functional Hidden Menu Access Restricted Unrestricted Bypass Unexported Components Blocked by Android OS Explicit Intent Forcing Service Control View-Only Mode Full Start / Stop Toggles Component Disabling Manual System Settings One-Click Direct Freeze Step-by-Step Installation Guide
That said, many of its most impressive tricks require root. Without root, you're limited to what the Android system allows third-party apps to see—which is still substantial, but not the full iceberg.