What's the difference between Registrar-se, Cadastrar-se, Inscrever-se?
Hello!
I'm trying to translate the button "Sign up" into Portuguese, and the Internet gave me several variants.
But what is the difference between them?
Registrar-se/Cadastrar-se/Inscrever-se
Thank you so much for your answer.

Question

What's the difference between Registrar-se, Cadastrar-se, Inscrever-se?
Hello! 
I'm trying to translate the button "Sign up" into Portuguese, and the Internet gave me several variants. 
But what is the difference between them? 
Registrar-se/Cadastrar-se/Inscrever-se
Thank you so much for your answer.

Answer

They all mean "to sign up", but we normally use them in different situations:

Cadastrar-se: it means to sign up to something.
Example: Eu me cadastrei em uma newsletter de tecnologia.

Registrar-se - it means to sing up, but it can also mean mean to register yourself.
Example: eu me registrei nesse website.

inscrever-se - it means  "to subscribe" or "to enroll".
Example: eu me inscrevi em um curso. Eu me inscrevi em um canal do Youtube.

In your case, it would be ideal to use "Registre-se" or "Cadastra-se".

Answer

They all mean "to sign up", but we normally use them in different situations:

Cadastrar-se: it means to sign up to something.
Example: Eu me cadastrei em uma newsletter de tecnologia.

Registrar-se - it means to sing up, but it can also mean mean to register yourself.
Example: eu me registrei nesse website.

inscrever-se - it means  "to subscribe" or "to enroll".
Example: eu me inscrevi em um curso. Eu me inscrevi em um canal do Youtube.

In your case, it would be ideal to use "Registre-se" or "Cadastra-se".