I have made a website for my business. I also want to make an app for android ios.How do I use my Wix database in my app and vice-versa
You’ll want to acquire and host an external database (mongoDB, postgreSQL, and SQLite are all pretty popular databases for mobile apps) and then use the External Database API to connect your Wix site to it. Here’s another article on how to do that.
Hope this helps!