If you are a student or professional, it is highly recommended to use the official, supported methods for accessing Axure RP to ensure security and receive all the benefits of the software.
How to apply for the (official free way).
Despite being a subscription service, Axure RP 10 can still be used offline.
Axure RP 10 operates on a monthly or annual subscription basis. This ensures you always have the most secure and up-to-date version. What's New in Axure RP 10 (Version 10.0.0.3882+)