Devart has released a new version of UniDAC with support for Delphi XE7 Firemonkey on Android, IOS, Windows, and OSX. UniDAC is a universal data access component suite which has support for Oracle, SQL Server, MySQL Server, Interbase, Firebird, PostgreSQL, SQLite, NexusDB, MS Access, DB2, DBF, Sybase, and ODBC. Some of the database support is not cross platform (like SQL Server) but most of them are. One thing I noticed while reading about UniDAC is that it mentions the ability to have server independent SQL. That means you could use the same SQL for SQL Server and MySQL because UniDAC implements a macro engine that produces dynamic SQL for each server type. With UniDAQ you can connect directly to the database without a DB Client library which eases deployment. There is also a free utility called dbMonitor available for it which allows you to monitor and analyze the DB calls made by your application. UniDAC is a commercial component suite but there is a free trial available. Should also work with Appmethod.