Gleam/SweepWidget Platform

I want a platform similar to Gleam and SweepWidget. It will be just free no payment processor needed to be integrated.

Some of the options I want for the contest are here:

Follow Twitter
Retweet
Follow Instagram
Visit Website,
oin Discord
Then a text field to enter an entry.

Backend should be pretty easy to use, user just signs up. The he can post a contest, you can check Gleam/SweepWidget for better understanding.

https://sweepwidget.com/
https://gleam.io/