The test you choose should be based on what it is you want to do.
The IELTS Academic test is for those who want to study at a tertiary level in an English-speaking country.
The IELTS General Training test is for those who want to do work experience or training programmes, secondary school or migrate to an English-speaking country.
All candidates take the same Listening and Speaking tests but different Reading and Writing tests.
Learn more about which IELTS test is right for you