Data persistence	Description	Primary Model	Data Sync	Language	License	Fun Fact	"Headquarter"
Drift	ORM on top of SQLite	relational	❌	SQL	SQLite is public domain, Drift is MIT	Formerly known as Moor	🇩🇪
Floor	ORM on top of SQLite	relational	❌	SQL	SQLite is public domain, floor is Apache 2.0	Developed by a mobile app agency, not an individual author	🇳🇱
Isar	Lightweight NoSQL database	NoSQL	❌	Dart	Apache 2.0	Author of hive, which will be deprecated	🇩🇪
ObjectBox	Lightweight NoSQL database with integrated Data Sync	NoSQL	✅	Dart	Bindings are Apache 2.0	It is used in BMW cars 😮	🇩🇪
Realm	NoSQL database acquired by Mongo DB in spring 2019, Flutter binding came in 2023	NoSQL	Yes, but you need to use MongoDB Atlas and the Mongo DB Cloud	Dart	Apache 2.0	Originally Realm was developed in Denmark...	🇺🇸
Sembast	NoSQL database, fully document-based	NoSQL	❌	Dart	BSD-3-Clause	Also the author of SQFlite	🇫🇷
sqflite	SQLite plugin for Flutter	relational	❌	SQL	SQLite is public domain, sqflite lib is MIT	Not an ORM	🇫🇷