Best Relational Database for iPhone

RaimaDB is an embedded time series database for IoT and Edge devices that can run in-memory. It is an extremely powerful, lightweight and secure RDBMS. Field tested by over 20 000 developers worldwide and has more than 25 000 000 deployments. RaimaDB is a high-performance, cross-platform embedded database designed for mission-critical applications, particularly in the Internet of Things (IoT) and edge computing markets. It offers a small footprint, making it suitable for resource-constrained environments, and supports both in-memory and persistent storage configurations. RaimaDB provides developers with multiple data modeling options, including traditional relational models and direct relationships through network model sets. It ensures data integrity with ACID-compliant transactions and supports various indexing methods such as B+Tree, Hash Table, R-Tree, and AVL-Tree.

Organize your work your way with Airtable. An all-in-one collaboration software, Airtable combines the power of a relational database with the flexibility and ease of use of a spreadsheet. It works across platforms and devices, and syncs data in real-time. Users can choose from different formats to view the tasks at hand, including grid, calendar, Kanban, gallery, and forms.

HanDBase is a light and fast relational database manager for mobile devices which offers data entry, searching, sorting, filtering, printing and synchronization across a wide variety of desktop computers, tablets, handheld computing devices and smartphones. With HanDBase you can keep track of almost anything. Create your own custom data based applications in minutes using HanDBase and begin tracking whatever important information you need to be more productive while on the go. HanDBase is available as a separate product for many different devices and Operating Systems. Cross-platform technology makes it possible to seamlessly share database files & records with different types of devices. Forms Designer is available for some versions. Create completely custom interfaces for your records. Multi-user Syncing technology merges two or more users data into a single database / table.