Referring your reply about no.2 of your reply for back4app, here is the one year free from AWS parse server on AWS one year free hosting.
It is totally free for one year the entire parse server with 1G RAM VPS server and not like back4app gives insufficient free plan and start charging for funny things like Database Storage,File Storage ,Requests/second ,Requests/Month,Cloud code job.
The worst thing is back4app running on AWS , riding AWS free plan and charging to customer where users are able to get free on aws give 1 year the entire parse server , storage.
Here is more details for AWS free tier.
bitnami parse server is applicable for AWS free tier.
So before you says anything you should do so research and study on the web.
And my advice to you is don't make your customers stick with expensive back4app t that cost them lot of money. Try to support free AWS parse servers if you really care about your customers.
Referring your reply about no.3 reply , I have no reason to get your app free. It is totally not useful for me at all as many features I want are not comes with it. I try to use your app by asking you to add in features that I want.But you are not able to do it and your app doesn't fit my requirements.For your info: , I bought about USD 400 for other apps with your apps in single purchase.Money is no problem for me. It is just that your app is not useful for me at all. That is why I ask for refund.