Pros of v2ray-core

• Core functionality and protocol implementation
• More extensive documentation and community support
• Better performance and resource efficiency

Cons of v2ray-core

• Lacks a user-friendly GUI
• Requires more technical knowledge to set up and configure

Code Comparison

v2ray-core (Go):

type User struct {
    Level uint32
    Email string
}

type Account struct {
    Id      string
    AlterId uint32
}

v2rayNG (Kotlin):

data class User(
    var level: Int = 0,
    var email: String = ""
)

data class Account(
    var id: String = "",
    var alterId: Int = 0
)

Summary

v2ray-core is the core implementation of the V2Ray protocol, offering robust functionality and performance. It's well-documented and supported by a large community. However, it lacks a built-in GUI and requires more technical expertise to use.

v2rayNG, on the other hand, is an Android client for V2Ray. It provides a user-friendly interface for configuring and using V2Ray on mobile devices. While it may not offer the same level of performance or flexibility as the core implementation, it's more accessible for average users.

The code comparison shows similarities in data structures between the two projects, with v2ray-core using Go and v2rayNG using Kotlin, reflecting their different target platforms and use cases.

Pros of v2rayN

• More feature-rich and customizable for Windows users
• Supports a wider range of protocols and configurations
• Better suited for advanced users with more technical knowledge

Cons of v2rayN

• Limited to Windows platform, less accessible for mobile or cross-platform users
• May have a steeper learning curve for beginners
• Potentially more complex interface compared to v2rayNG's mobile-friendly design

Code Comparison

v2rayN (C#):

public static int RunAsAdmin(string arguments)
{
    Process process = new Process();
    process.StartInfo.FileName = Utils.GetExePath();
    process.StartInfo.Arguments = arguments;
    process.StartInfo.UseShellExecute = true;
    process.StartInfo.Verb = "runas";
    process.Start();
    return process.Id;
}

v2rayNG (Kotlin):

fun startV2Ray() {
    if (!v2rayPoint.isRunning) {
        val result = v2rayPoint.runLoop()
        if (result) {
            MessageUtil.sendMsg2UI(this, AppConfig.MSG_STATE_START_SUCCESS, "")
        } else {
            MessageUtil.sendMsg2UI(this, AppConfig.MSG_STATE_START_FAILURE, "")
        }
    }
}

The code snippets demonstrate different approaches to starting processes or services, reflecting the distinct platforms and languages used in each project.

Pros of shadowsocks-android

• Simpler and more lightweight protocol, potentially faster for basic usage
• Longer development history and wider adoption
• More straightforward setup process for users

Cons of shadowsocks-android

• Less advanced features compared to v2rayNG
• Limited protocol support (primarily Shadowsocks)
• May be less effective against sophisticated network censorship

Code Comparison

shadowsocks-android:

override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
    if (intent?.action == Action.CLOSE) stopRunner()
    return Service.START_NOT_STICKY
}

v2rayNG:

override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
    when (intent?.action) {
        Action.SERVICE_START -> startV2Ray()
        Action.SERVICE_STOP -> stopV2Ray()
    }
    return super.onStartCommand(intent, flags, startId)
}

Both projects use Kotlin and have similar service lifecycle management. However, v2rayNG appears to have more granular control over service actions, reflecting its more feature-rich nature compared to the simpler shadowsocks-android implementation.

Pros of trojan

• Simpler and more lightweight protocol, potentially faster
• Designed to be undetectable, mimicking HTTPS traffic
• Cross-platform support with implementations in multiple languages

Cons of trojan

• Less feature-rich compared to v2rayNG's multi-protocol support
• Smaller community and ecosystem
• Limited built-in obfuscation options

Code Comparison

v2rayNG (Kotlin):

override fun onBind(intent: Intent): IBinder? {
    return VpnService.prepare(this)
}

trojan (C++):

int main(int argc, char *argv[]) {
    Log::log_with_date_time("Welcome to trojan " + Version::get_version(), Log::FATAL);
    return run_service(argc, argv);
}

v2rayNG is an Android client for the V2Ray core, offering a user-friendly interface and support for multiple protocols. It's written in Kotlin and focuses on mobile usage.

trojan is a lightweight proxy tool designed to bypass network restrictions. It's implemented in C++ and aims for simplicity and undetectability.

Both projects serve similar purposes but differ in their approach and target platforms. v2rayNG offers more flexibility with multiple protocols, while trojan focuses on a single, efficient protocol designed to be undetectable.