NAOS is a matchmaking platform for Eastern Orthodox Christians seeking a spouse who shares their faith and intention to build a family. Designed for people whose opportunities to meet compatible partners may be limited, including those living abroad, it focuses on purposeful introductions rather than browsing profiles or juggling multiple conversations.

Members confirm that they want a church wedding and children, are baptised or preparing for baptism, and are not currently married, either in church or civilly. They create a profile, verify their identity with a live selfie, and set preferences for age, location, distance and countries. NAOS then introduces one person at a time. If interest is mutual, a private conversation opens; if not, the next introduction follows. Introductions are always free, while a subscription is required to write in conversations.

The platform emphasizes privacy and safety: profiles are visible only to people introduced to them, user data is not sold or shared, and reports of inappropriate behaviour are handled promptly.