Do you have to pay for AIL?

Excuse me, I'm curious about the cost structure of AIL. Is there a fee associated with using AIL, or is it a free service? If there is a cost, can you elaborate on what that cost entails and how it's calculated? Additionally, are there any hidden fees or charges that users should be aware of before utilizing AIL? It would be greatly appreciated if you could provide a clear and concise answer to these questions.