Best SQL Databases for Android of 2025

RaimaDB, an embedded time series database that can be used for Edge and IoT devices, can run in-memory. It is a lightweight, secure, and extremely powerful RDBMS. It has been field tested by more than 20 000 developers around the world and has been deployed in excess of 25 000 000 times. RaimaDB is a high-performance, cross-platform embedded database optimized for mission-critical applications in industries such as IoT and edge computing. Its lightweight design makes it ideal for resource-constrained environments, supporting both in-memory and persistent storage options. RaimaDB offers flexible data modeling, including traditional relational models and direct relationships through network model sets. With ACID-compliant transactions and advanced indexing methods like B+Tree, Hash Table, R-Tree, and AVL-Tree, it ensures data reliability and efficiency. Built for real-time processing, it incorporates multi-version concurrency control (MVCC) and snapshot isolation, making it a robust solution for applications demanding speed and reliability.

What makes eXtremeDB platform independent? - Hybrid storage of data. Unlike other IMDS databases, eXtremeDB databases are all-in-memory or all-persistent. They can also have a mix between persistent tables and in-memory table. eXtremeDB's Active Replication Fabric™, which is unique to eXtremeDB, offers bidirectional replication and multi-tier replication (e.g. edge-to-gateway-to-gateway-to-cloud), compression to maximize limited bandwidth networks and more. - Row and columnar flexibility for time series data. eXtremeDB supports database designs which combine column-based and row-based layouts in order to maximize the CPU cache speed. - Client/Server and embedded. eXtremeDB provides data management that is fast and flexible wherever you need it. It can be deployed as an embedded system and/or as a clients/server database system. eXtremeDB was designed for use in resource-constrained, mission-critical embedded systems. Found in over 30,000,000 deployments, from routers to satellites and trains to stock market world-wide.

Firebird is a relational data base that supports many ANSI SQL standards. It runs on Linux, Windows, and a range of Unix platforms. Firebird provides high concurrency, high performance and powerful language support for stored procedure and triggers. Since 1981, it has been used in production systems under many names. The Firebird Project is a commercially-independent project consisting of C and C++ programmers, technical advisers, and supporters. It develops and enhances a multi-platform relational data management system that uses the source code released by Inprise Corp (now Borland Software Corp) 25 July 2000.

Actian Zen is a low-maintenance, embedded database management system that is high-performance and designed for edge applications, IoT, mobile devices and IoT environments. It provides developers with flexibility when working with unstructured and structured data. Actian Zen's small footprint, scalability and high reliability make it ideal for resource-constrained settings where consistent performance and minimal administration overhead are essential. It supports real-time analytics and data processing with built-in security and a self tuning architecture without the need for constant maintenance or monitoring. Actian Zen is used by many industries, including healthcare, retail and manufacturing, in which edge computing and distributed data environments play a critical role for business operations.

The Mimer SQL codebase has the most advanced technology in the world. It is portable, modular, easy to maintain, and expandable. Mimer SQL knows how to get the most out of computers and operating systems. Our brand-new SQL compiler, with the latest optimization techniques, combined with a world class storage engine, and no limitations other than what the hardware imposes lays the foundation for speed and efficiency second to none. Mimer SQL's security features are constantly improved and refined. Algorithms that are time-tested, documented, and reliable cover data in use, data on the move, and data in rest. Mimer SQL is a perfect companion for a modern in-vehicle computing solution. Its performance and reliability meet the high demands of today's autonomous cars and connected cars for secure, flexible and reliable data management.