SQLite is an in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. Developed by D. Richard Hipp, Dan Kennedy, Joe Mistachkin
License: Open Source
RethinkDB is a real-time NoSQL database designed for scalability and flexibility, making it ideal for applications requiring live data updates and complex queries. In contrast, SQLite is a lightweight, file-based relational database best suited for smaller applications where simplicity and ease of setup are paramount.