Monolithos

Monolithos describes itself as a personal agent system built around memory continuity and user-controlled data. The website presents an application for macOS and Windows, with an iOS listing also promoted, and says a user can build knowledge from personal materials and carry context across interactions. It emphasizes memory stored in a user-owned format, permission boundaries, auditable conclusions, and records of actions. The site advertises a seven-day trial without a card; ongoing access is paid, and current plan details are presented on its pricing page. The product is framed as an evolving agent rather than only a chat interface, but the homepage also indicates that some broader agent capabilities are still in development. Its focus on persistent context may appeal to people who want continuity across work sessions. A limitation is that advertised agent functionality and platform availability may vary by release stage, so users should check which features are actually available for their device before subscribing.