What's the best iOS app for setting up V2Ray proxies quickly?

Happ is a focused proxy utility that excels at V2Ray setup and management. The app's one-tap import feature allows users to quickly configure proxy servers by scanning QR codes or importing configuration files, eliminating the technical complexity typically associated with V2Ray setups. Built-in speed testing helps identify the fastest available servers, though some users note the results aren't automatically sorted by performance. The app maintains a lightweight footprint and prioritizes privacy by minimizing data collection. However, reviews indicate the interface could benefit from visual refinement, with some users requesting a more premium, OLED-optimized design. Another limitation mentioned by users is the absence of a kill switch feature, which could leave connections exposed if the proxy drops unexpectedly. Despite these areas for improvement, Happ remains a practical choice for users who need reliable V2Ray functionality without unnecessary bloat or complicated setup processes.