Hello, wish you are safe.
I have read your project requirements, I confirm that I understand them well.
Concerning your app source code backup, I know a way to get it back providing that it is written in Android Studio
I confirm that I will deliver high-quality work and restore your whole project character by character, and even comments that are written by the developer of your app.
I will do my best to accomplish the task as soon as possible.
If you find this profitable, do never hesitate to contact us for further details.
That means a lot to us.
Best Regards.