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Happ vs DobbyVPN: catalog facts
Happ	DobbyVPN
Free Free to download, with optional donations to the developer.	Free Free for non-commercial use; commercial production use requires a paid license.
Windows, macOS, Linux, Android, iOS	Android
Supports VLESS Reality, VMess, Trojan, Shadowsocks and SOCKS Rule-based routing between proxies	Supports Shadowsocks, Xray and TrustTunnel in one client Subscription or dynamic-key configuration over HTTPS
A client only; you need proxy servers from elsewhere Source code not published	Source-available, not open source, until 2030 Requires your own server or provider configuration
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: BUSL-1.1
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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