Duolicious – Open-source dating app

Duolicious is an open-source dating app — the entire source code is publicly available, so anyone can inspect, modify, or self-host it. Most dating apps (Tinder, Bumble, Hinge) are proprietary, closed-source platforms that monetize through subscriptions and ads, often using opaque algorithms to control who users see. Duolicious positions itself as a privacy-respecting, non-commercial alternative. Being open-source means the app cannot secretly manipulate matching or sell user data, but it also lacks the resources for large-scale moderation or user acquisition. It targets users who are skeptical of big tech's control over dating and want full transparency in how the service works.