Hello, I want to make an app that when it opens, there is a screen and after 2s it opens an other screen.
I want to make it look like when you open Facebook, Twitter, Snapchat or anything
Thanks
Use the Wait block in the Control blocks section:

Hello. You are using Thunkable Classic Platform
.This Platform cannot make wait any times block on it or you said “delay”.If you want to do it. You must use Thunkable X Platform. This platform was new version of Thunkable. Thanks.
My solution was Thunkable X. In classic, you can use the Timer block. This is an example I have used to set a field background colour at different intervals:

