1. Filemaker Pro
Filemaker Pro is the number one cross-platform relational DBMS on our list of 6 easiest database programs to learn. It is user-friendly software which enables creating custom applications even without any programming knowledge. Now it is suitable for both Windows and Mac, although it has originally been made for Mac working environment lately. Filemaker Pro has the ability to connect with SQL databases. The basic version of Filemaker Pro license costs about $300.