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4D - 4D is a relational database management system and IDE.
Philasmicos Contacts 2 - Philasmicos Contacts is a professional business relationships management system for macOS X.
FileMaker Pro - FileMaker Pro Advanced includes all the features of FileMaker Pro plus a set of advanced tools so you can rapidly build powerful custom apps.
tinyblu - Never neglect your friends again. See how long it's been since you last hung out.
Steward Database - Steward is a personal database for organizing everything. It's easy to use.