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Pros
Pro E-commerce oriented
It's e-commerce oriented, so if you need to build an e-commerce mobile app you don't have to re-define common resources such as Categories Brands Products and Carts.
Pro Can be modified to be used not only for e-commerce
While it's true that it's built for creating e-commerce apps, every resource can be extended with metadata in order to use it for many use cases.
Pro Cross-platform
Can be used for mobile app as well as web applications.
Cons
Con No free plan
There is no free plan available. Pricing starts at 19€/Month.