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XrayFA vs Happ: catalog facts
XrayFA	Happ
Free Free and open source under the Apache-2.0 licence.	Free Free to download, with optional donations to the developer.
Android	Windows, macOS, Linux, Android, iOS
Supports VLESS, VMESS, Shadowsocks, Trojan, Hysteria2 and Reality Built on Xray-core	Supports VLESS Reality, VMess, Trojan, Shadowsocks and SOCKS Rule-based routing between proxies
Needs a server you run or subscribe to separately Android only	A client only; you need proxy servers from elsewhere Source code not published
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.