As an artist and gallery registrar, I developed a database to handle the basics and nitty gritty of managing a collection of artworks. The solution grew and became more functional and I made an effort to distribute it to help artist, gallerists and collectors. Unfortunately the business model of selling a one off standalone piece of software is not a functional way to make a living (look to all the others out there for monthly/yearly licensing models). Trying to support individual users (for free) was too taxing, so I chose to end the application.
Artwork inventory has been on hold for some time since Apple and Filemaker discontinued the ability for solution developers to distribute runtime applications. Artwork Inventory works using native Filemaker, which can be purchased from Claris.com. Individual users are advised to purchase a ‘perpetual’ license for about $600 (you own it forever, or until your operating system no longer works with it). https://store.claris.com/individuals
For those looking to build their own solution to manage their artworks, I recommend Filemaker as it is visually oriented, low code, and easy to learn.
Free or cheap options are through Google – using google sheets, google drive and ‘App sheets’, you can get a basic database working.
https://about.appsheet.com/home/
Search for Filemaker Alternatives and you’ll find a number of solutions. Here is one that compares various systems.