Happ - Proxy Utility

Happ is a proxy and VPN server configuration application that allows users to manage custom proxy connections on their mobile device. Rather than providing its own hosted services, the app functions as a configuration platform where users establish connections to servers they have already obtained elsewhere.

Rule-based proxy configuration is the app's core technical feature. This system enables users to establish conditional logic for how and when proxy traffic is routed. Rather than applying a single proxy setting globally across the entire device, rules allow selective routing—some applications or connections can be funneled through a proxy while others connect directly, based on user-defined conditions. This approach provides flexibility for users who require proxy functionality only in specific scenarios.

The application supports six distinct proxy protocols, each offering different technical characteristics suited to various network conditions and security needs. VLESS with Reality protocol provides lightweight connections designed to avoid detection by network filtering systems through obfuscation. VMess protocol delivers flexible proxy capabilities with multiple configurable transport mechanisms for varied network scenarios. Trojan protocol enables straightforward proxy connections with minimal overhead for efficient data throughput. Shadowsocks provides lightweight, stream-based encryption for proxy connections optimized for various network types. The standard SOCKS5 protocol offers broader compatibility with applications and systems that natively expect SOCKS support. Hysteria2 delivers high-speed proxy connections specifically optimized for high-latency or unstable network conditions, leveraging a QUIC-based protocol for performance.

The variety of protocol support allows users to select connection methods that match their specific server capabilities or connection requirements. Each protocol has different performance characteristics, detectability profiles, and bandwidth efficiency, enabling users to choose based on their particular needs and the servers they have access to.

Subscription management features support both hidden and encrypted subscriptions. In this context, subscriptions are collections of proxy server configurations imported from external sources. Hidden subscriptions obscure subscription data at the device level, preventing system-level exposure of proxy configurations. Encrypted subscriptions encrypt the subscription data itself, adding a layer of cryptographic protection to stored proxy information. These capabilities allow users to organize and manage multiple proxy server collections with varying levels of privacy protection.

The application implements a privacy-first data model at the architectural level. User information, proxy configurations, server addresses, and all related data remain stored exclusively on the device. No information is transmitted to external servers, no usage data is collected, no connection logs are maintained, and no analytics are gathered. This design ensures that proxy configurations and server details remain exclusively accessible on the user's device.

Server access is the user's responsibility entirely. The app requires users to provide their own proxy servers—they must obtain valid server resources before establishing connections. This distinguishes the application from traditional VPN services that maintain and operate hosted infrastructure. Users arrange their own server relationships.

Proxy and VPN configuration tools exist in a legally complex landscape that varies substantially by jurisdiction. Regulations differ across regions regarding whether, how, and for what purposes proxy technology can be used. Some jurisdictions restrict or prohibit certain uses, while others permit specific applications. Users are solely and legally responsible for ensuring their use of this application complies with all applicable laws and regulations in their location. The app provides technical platform capabilities but cannot enforce legal compliance or provide legal guidance.