>this isnt finish'
From the looks of it it hasn't even started
Edit: I'll be nice and recommend some starting points for you.
For the back-end, I'd recommend using a PHP framework (Laravel, CodeIgniter, or w/e) (or you can be based and just use vanilla PHP) and MySQL if you feel like going the old school way, but if you prefer trying the new school way, then you can try using a NodeJS and a "NoSQL" database (like Firebase)
As for the front-end, you can use a framework like react-native, angular, vue, or any of the popular js frameworks out there. If you prefer not using a framework, you can always fallback to using plain HTML, CSS, and JS.
In the end though, unless you got a bunch of money lying around, you're not gonna be able to get random people to help. The best thing you can do rn is to start learning and working on it on your own, then once you get popular enough, you can have others help you via contributions.
While I personally recommend reading the documentations, I get that it isn't straightforward and easy to understand for people with abs no experience in the field. You can start out by watching some youtube videos and trying to understand the basics of programming first, then just going deeper down from there. gl if you're planning on tackling this idea.