I’m making an application for client and I use backendless to storage my files and databases. My app can exist with the limitations of the free version. My client is a small restaurants chain with 2-4 offices.
I want to know exactly what I must pay to backendless for using the services when the application will be released in the store.
With the current pricing plan what you would need to pay is listed on this page:
https://backendless.com/pricing/backendless-cloud-functional-limits/
That means the charges would be applicable only if you need to purchase additional extensions.
However, the pricing and the plans may change in the future.
Mark