Marshall Relay Limited is a Hong Kong-based mobile software company that designs, develops, publishes and supports apps and games for iOS and Android users worldwide. The company describes its products as built with care, with an emphasis on ongoing maintenance, privacy and accessible pricing. Its apps are available through the Apple App Store and Google Play.

Its portfolio includes Quiet Escape, a story-driven, point-and-click escape-room puzzle game set in a Manhattan family apartment. Players explore, uncover clues and solve handcrafted puzzles without timers or pressure; the game is available in eight languages. Marshall VPN offers one-tap connections, modern encryption and use without signing up. It is free with ads, with an optional subscription. Capy Resort, listed as coming soon, is a cozy idle tycoon game in which players develop a capybara resort, hire helpers and expand its attractions.

Marshall Relay says its apps work without accounts and collect as little data as possible.