Or if you want to go super-niche, Panorama is still around, and (they say) the longest-running Mac software developer apart from Microsoft. https://www.provue.com
Either one makes it easy to build a database+interface.
Odd pricing though = pay in advance credits. Ummm, not something I'd like to use for work when I'm in the middle of an important analysis with a deadline and I (inevitably) run out of credits and have to start faffing about with in-app purchases. Maybe its not that bad and I'm being unfair.
Each credit allows a month of use. Seems pretty straightforward, but I agree with you that because these aren't an auto-renewing subscription you could find yourself needing to pay at an unexpected time.