Question: I have a quick question.

Here is the scenario.
A friend of mine owns tennis courts.
He needed a system where he could reserve courts for customers and cancel reservations (not the customers to reserve, but himself. Just for him)
Basically, I made a react project.

I have finished the project and it works perfectly fine.
It has got the front end, server and database postgreSQL (ph Admin4).

My quistion is:
Is it possible to use the project without getting a website?
Basically just use it in the phone without purchasing domain and hosting.

Answer: 
Free Frontend App Hosting Solutions
===================================

You can use free hosting solutions to deploy your front-end application.

The most known ones are:

* Vercel
* Heroku
* Netlify
* GitHub pages (With GitHub actions, to build React projects)

I personally love **Vercel**, I think it is the easiest one, pretty straight forward, and it creates URLs like:

`your-unique-project-name.vercel.app`

It lets you connect to your GitHub repo, then once you commit it automatically deploys the app, and you can register a custom domain if you decide to buy one afterwards.
Not that I know of.

You can get a free subdomain. On github pages etc.

Also hosting is possible for free on heroku or netlify.