Helix Engine is a free Android tool developed by Team Helix in the Utilities & Tools category. It is an Accessibility Service that automates dynamic performance profile switching based on the user's usage to improve battery consumption and performance. The app requires a rooted device with ARM or ARM64 chipset and Android 7.0 Nougat or later. No other modifications should tweak kernel tunables automatically to prevent conflicts.

The app offers Profile Data Customization, App Engine, Suspend Engine, Over-execution prevention, Backup and Restore app lists and profile data, and Machine Learning Mode for premium users. The app's Sync App Engine allows users to manage repeated tasks, and the User Experience Program privacy policy ensures that only app engine data is uploaded to the database, with no information that can uniquely identify the user or their device. The app requires permissions for BIND_ACCESSIBILITY_SERVICE, WRITE_EXTERNAL_STORAGE, RECEIVE_BOOT_COMPLETED, and INTERNET.