What is the diffrence between Arduino ESP32 and ESP-IDF ?

[ThomasESP32]

Hello starting the developpement of a ESP32 project,

I need to choose between using Arduino ESP32 and ESP-IDF.
Could you please explain me the main differences between these two things ?

I understand that ESP-IDF comes with some methods like an API or something like that which seems to be very useful for development.
Am I correct ?

It seems like these functions/methods are not available with Arduino ESP32. Am I correct ?

So I am wondering which one to choose. Could you please help me ?

Best regards.

[chegewara]

Plenty of similar questions on forum already answered:
https://www.google.com/search?q=esp-idf ... nt=gws-wiz