Hello?
How are you?
I have good experiences in "Help me to add some dialog box when user click the donate button on my app" as you can see my profile for these (Android, Javascript, Mobile App Development).
I have been working for 7 yrs in this scope.
While we contract and work in our jobs, I will get paid once you have confirmed satisfied result.
If I do not deliver satisfied result, I will never get paid from you.
We can discuss more details to understand more easily if you have other infos.
Hope to work with you.
Thank you.