sing-box
🌟 sing-box is an emerging cross-platform proxy software developed in Go, providing modern proxy solutions on iOS platform and representing an excellent example of free and open-source proxy tools.
✨ Product Features
🎯 Core Advantages
🆓 Open Source & Free: Completely open source with free iOS version
🚀 High Performance: Developed in Go language for excellent performance
🌍 Cross-Platform: Unified configuration format for consistent multi-platform experience
🔄 Continuous Updates: Active development team with rapid feature iteration
🛡️ Modern: Adopts latest networking technologies and security standards
🔗 Protocol Support
🔒 Shadowsocks
✅
Full version support, performance optimized
🌟 VMess (V2Ray)
✅
Complete functionality support
⚡ VLESS
✅
Lightweight protocol
🛡️ Trojan
✅
TLS camouflaged traffic
🚀 Hysteria
✅
QUIC high-speed protocol
🌊 TUIC
✅
New QUIC-based protocol
🔐 WireGuard
✅
Modern VPN protocol
🧦 SOCKS5
✅
Universal proxy protocol
🛠️ Feature Highlights
🌐 Network Core
TUN mode, system proxy
Global traffic takeover
📡 DNS Service
Built-in DNS server
Prevent DNS leaks
🎯 Routing System
Flexible rule engine
Precise traffic splitting
📊 Traffic Monitoring
Real-time statistics and analysis
Detailed usage information
🔧 Configuration Management
JSON configuration format
Standardized configuration
🔄 Hot Reload
Dynamic configuration updates
No service restart needed
📱 System Requirements
Minimum Version: iOS 15.0 or higher
Recommended Version: iOS 16.0 and above
Compatible Devices: iPhone / iPad
Storage Requirement: About 100MB available space
Memory Requirement: 3GB RAM or above recommended
📥 Download & Installation
🏪 App Store Information
🎉 Great News
sing-box iOS version is completely free
Not available in China mainland App Store
Requires non-China mainland Apple ID
Excellent value compared to other paid apps
💰 Price Comparison
sing-box
Free
✅ Open Source
⭐⭐⭐⭐
Shadowrocket
$2.99
❌ Closed Source
⭐⭐⭐⭐
Quantumult X
$7.99
❌ Closed Source
⭐⭐⭐⭐⭐
Surge
$49.99
❌ Closed Source
⭐⭐⭐⭐⭐
🆚 Advantage Comparison
Comparison with other clients:
🏷️ Price
Free
$2.99
$7.99
🔓 Open Source
✅
❌
❌
🚀 Performance
⭐⭐⭐⭐⭐
⭐⭐⭐⭐
⭐⭐⭐⭐
📚 Ease of Use
⭐⭐⭐
⭐⭐⭐⭐⭐
⭐⭐⭐
🔧 Functionality
⭐⭐⭐⭐
⭐⭐⭐
⭐⭐⭐⭐⭐
🔄 Update Frequency
⭐⭐⭐⭐⭐
⭐⭐⭐⭐
⭐⭐⭐⭐
⚠️ Usage Notes
🆓 Free Software Advantages
🎉 Important Notice
sing-box iOS version is completely free
Based on open source project with transparent and auditable code
No need to worry about payment and subscription issues
Continuous feature updates with community-driven development
🎯 Target Users
📋 Recommended Users
✅ Budget-Conscious: Want free but powerful tools
✅ Tech Enthusiasts: Love open source software and follow technology development
✅ Privacy-Focused: Prefer transparent and auditable code
✅ Performance Seekers: Need high-performance proxy solutions
📚 Technical Support Scope
📋 Service Description
✅ Basic Configuration: Configuration import and connection tutorials provided
✅ Common Issues: Basic usage questions answered
❌ Advanced Configuration: Complex routing and rule configuration not provided
❌ JSON Editing: Manual configuration file editing guidance not provided
💡 Learning Resources: Recommend official documentation and community support
🚀 Usage Tutorial
📋 Prerequisites
Before starting, please ensure:
✅ sing-box downloaded and installed from App Store
✅ Valid proxy service configuration available
✅ Basic understanding of JSON configuration format
✅ Device network connection is normal
🛠️ Basic Configuration
🔗 Configuration Import Process
Step 1: Launch Application
Open sing-box and enter the main interface:
💡 First launch will require permission setup, please follow the prompts
Step 2: Add Configuration
Click the "+" button to add new configuration:
Step 3: Import Method
Choose configuration import method (URL, file, or manual):
Step 4: Configuration Details
Enter configuration information and save:
Step 5: Enable Connection
Select configuration and start proxy service:
🎛️ Advanced Features
🌐 TUN Mode
Global Proxy: System-level traffic interception
DNS Hijacking: Built-in DNS server prevents leaks
Route Table: Custom routing rules for precise control
📊 Traffic Monitoring
Real-time Statistics: Live traffic speed and usage monitoring
Connection Details: View active connections and protocols
Historical Data: Traffic usage history and analytics
🔧 Configuration Management
JSON Format: Standard configuration file format
Hot Reload: Dynamic configuration updates without restart
Profile Switching: Quick switching between multiple configurations
❓ Frequently Asked Questions
🔧 Configuration Issues
Q: Configuration import failed?
A: Troubleshooting steps:
Verify configuration file format is correct JSON
Check network connectivity for URL imports
Ensure proxy server information is accurate
Try manual configuration entry
Q: Connection established but no internet access?
A: Common solutions:
Check TUN permission is granted
Verify DNS settings are correct
Test with different proxy nodes
Review routing rules configuration
📱 Performance Issues
Q: High battery consumption?
A: Optimization tips:
Disable unnecessary routing rules
Use direct connection for local traffic
Reduce logging verbosity
Close unused features
Q: Slow connection speeds?
A: Performance optimization:
Select geographically closer servers
Use appropriate encryption methods
Check local network quality
Optimize routing configuration
🔗 Related Resources
📚 Official Resources
🌟 Community Resources
🛠️ Tools & Utilities
💡 Usage Tips
⚡ Performance Optimization
Efficient Routing: Use precise rules to minimize unnecessary processing
DNS Configuration: Use reliable DNS servers for better resolution
Regular Updates: Keep both app and configurations up to date
🛡️ Security Best Practices
Configuration Security: Only use trusted configuration sources
Privacy Protection: Review and understand what data is processed
Update Vigilance: Keep software updated for latest security patches
🎯 Summary & Evaluation
✅ Advantages
🆓 Completely Free: No cost barrier for high-quality proxy tool
🔓 Open Source: Transparent code for security and trust
🚀 High Performance: Go language provides excellent speed and efficiency
🔄 Active Development: Regular updates and feature improvements
❌ Considerations
📚 Learning Curve: JSON configuration may be challenging for beginners
🎨 Interface Simplicity: Less polished UI compared to paid alternatives
📖 Documentation: Community-driven support may vary in quality
🔧 Advanced Features: Some enterprise features may be limited
🎯 Recommended For
🆓 Budget Users: Those seeking free but powerful proxy solutions
🔓 Open Source Advocates: Users who prefer transparent and auditable software
🚀 Performance Enthusiasts: Those who prioritize speed and efficiency
🌍 Cross-Platform Users: Those using multiple operating systems
📅 Last Updated: July 10, 2025 | 📦 Applicable Version: sing-box for iOS 1.8.0
Last updated