On the Settings page, click the Billing link. There you will see the info about your current subscription plan, its expiration date and the amount of the content items left to upload and share.
The iSpring Cloud Plan table lists accessible plans and the features they include.
All new iSpring Cloud accounts are totally free. You can upload up to 100 files and have free access to public sharing and mobile apps. If you would like to enjoy the fully functional Pro account beyond 30-day trial, you can purchase the Pro Plan subscription at any time.