Carrier IMS for Pixel is an Android application that provides a comprehensive toolkit for configuring IMS (IP Multimedia Subsystem) settings on Google Pixel devices. It leverages Shizuku to perform privileged operations such as overriding carrier configurations (VoLTE, VoWiFi, VoNR, 5G NR), modifying APN settings, fixing captive portal detection, and reading IMS registration status. The app features a Jetpack Compose UI with multiple tabs (IMS, Extra, Support, Partners, About), per-SIM configuration management, Quick Settings tiles, in-app updates, and a donation/ad system. The architecture follows a clean separation with ViewModels, a central ShizukuProvider that bridges IPC to instrumentation classes, and reusable utility modules. While primarily an application, it includes diagnostic logging and data persistence for configuration backups, giving it a minor hybrid character.