Twoyi

Features & Capabilities

Twoyi offers a wide range of features and capabilities that make it a powerful tool for Android users. This page provides a comprehensive overview of what Twoyi can do.

Core Features

Rootless Android Container

Twoyi's primary feature is its ability to run a complete Android environment as a normal application without requiring root access:

  • No Root Required: Twoyi works on non-rooted devices
  • No Bootloader Unlocking: No need to unlock your bootloader, preserving warranty and security
  • System-Level Container: Provides system-level functionality within a standard application

Fast Boot Time

Twoyi is designed for efficiency and quick startup:

  • Initial Setup: The first launch requires extracting the ROM files (may take a few minutes)
  • Subsequent Boots: After initial setup, Twoyi boots in approximately three seconds
  • Optimized Performance: The container is optimized for minimal resource usage

Isolation from Host System

Twoyi maintains strong isolation between the container and your main system:

  • Separate Environment: Applications within Twoyi run in a separate Android environment
  • Data Isolation: Data within the container is isolated from your main system
  • Security Boundary: Issues within the container don't affect your main system

Customizable ROM

Twoyi supports both the built-in ROM and custom ROMs:

  • Built-in ROM: Android 8.1 ROM included with Twoyi
  • Custom ROM Support: Create and use your own custom ROMs
  • ROM Modification: Modify system components to add custom functionality

Advanced Capabilities

Xposed Framework Support

Twoyi enables using Xposed modules without modifying your main system:

  • Taichi·Yang Support: Use Taichi·Yang modules within the container
  • Future Support: Xposed, EdXposed, and LSPosed support planned for future releases
  • Module Installation: Install and manage Xposed modules within the container

Root Access

Twoyi provides root functionality within the container:

  • Contained Root: Root access is contained within the Twoyi environment
  • Root Applications: Run applications that require root within the container
  • System Modifications: Make system-level changes within the container

Magisk Module Support

Many Magisk modules can be used within Twoyi:

  • Partial Support: Many Magisk modules work within the container
  • Module Management: Install and manage Magisk modules
  • System Modifications: Apply system modifications through Magisk modules

Virtual Hardware Abstraction Layer (HAL)

Twoyi allows virtualizing hardware components:

  • Virtual Camera: Implement and use virtual cameras
  • Virtual Sensors: Create virtual sensors for applications
  • Custom HAL Components: Develop custom HAL components for specific needs

Security Research

Twoyi provides a safe environment for security research:

  • Isolated Testing: Test potentially risky applications in an isolated environment
  • System Analysis: Analyze system behavior without risking your main device
  • Penetration Testing: Perform security testing within the container

User Features

Application Management

Twoyi provides comprehensive application management:

  • App Import: Import applications from your device
  • APK Installation: Install applications from APK files
  • App Updates: Update applications within the container
  • App Data Management: Manage application data and settings

File Management

Twoyi includes a built-in file manager:

  • File Browser: Browse files within the container
  • File Operations: Copy, move, rename, and delete files
  • Import/Export: Transfer files between your device and the container
  • Storage Management: Manage storage usage within the container

Network Connectivity

Twoyi shares the network connection of your host device:

  • Wi-Fi Support: Connect to Wi-Fi networks
  • Mobile Data: Use mobile data when available
  • Network Configuration: Configure network settings within the container

Multi-User Support

Twoyi supports multiple user profiles:

  • User Creation: Create additional user profiles within the container
  • User Switching: Switch between user profiles
  • User Data Isolation: Each user has their own isolated data

Technical Features

64-bit Architecture Support

Twoyi is designed for modern 64-bit devices:

  • ARM64 Support: Optimized for ARM64 (arm64-v8a) architecture
  • 64-bit Applications: Supports 64-bit applications
  • Performance Optimization: Takes advantage of 64-bit architecture for better performance

Android Version Compatibility

Twoyi works on a wide range of Android versions:

  • Host Compatibility: Works on Android 8.1 through 12
  • Container Version: Internal Android version is 8.1
  • Future Support: Android 10 support planned for the container

Open Source

Twoyi is fully open source:

  • Transparency: All code is available for review
  • Community Contributions: Community can contribute to development
  • Customization: Users can modify the code for their specific needs

Limitations

While Twoyi is powerful, it does have some limitations:

  • 32-bit App Support: 32-bit applications are not supported
  • Hardware Access: Some hardware features may have limited functionality
  • Performance Overhead: Running a container introduces some performance overhead
  • Google Services: Some Google services may require additional setup

Future Features

The Twoyi team is working on several exciting features for future releases:

  • Android 10 Container: Upgrading the internal Android version to 10
  • Enhanced Xposed Support: Adding support for more Xposed frameworks
  • Improved Performance: Optimizing performance and resource usage
  • Expanded Hardware Virtualization: Adding support for more virtual hardware components

For more detailed information on specific features, refer to the corresponding guides in the documentation.