Hi, Asides my skillset,
Here are the reasons, I will do an awesome job for you, in developing the backend for your app, that is similar to lala lab app
1) I will love to use it as a portfolio, as I will be applying for a job soon, in the printing industry and I need a portfolio closely related, though different.
2) When I get half payment, on start, I'd feel indebted/locked(which I hate), so I will do my best to give high quality, even advice.
3) I want a 5 star rating.
4) I also look forward to long term relationship.
5) I once worked with some one from your location and I must say, Had a great time working with Him, before I became seriously ill and couldn't continue, had to beg to quit to rest and stop work.
I look forward to working with you.
nb: I also do react native, so I can often give advice to your other dev, doing the react native aspect, as sometimes there are few compatibility issues, such as new line, authentication with backend and so on.
Kind Regards,
Ezekiel Okoduwa