Samata 

Features everything you need for calm, focused work. Only the essential features without extra complexity. A clean structure, clear interface and predictable behavior. One simple concept - a page. Not tables, databases or folders. Each task, project or thought is a page. Your materials stay together. Links, tasks, thoughts and resources are gathered and stored together in context. Connections create structure. You don't have to design a system in advance - structure appears naturally as you work. Smart reminders set a due date on any page. The system automatically reminds you about upcoming or overdue tasks. Instant search to find anything in seconds. Search by titles, descriptions and content. Minimal interface - quiet, clear and fast. So you feel calm instead of stressed.