The Hala.ai is a fully cloud-hosted service that is managed by Hala Digital OU, which means you do not need to worry about setting up or maintaining infrastructure to support it.
Today available only beta version, which is free for everyone. Follow the updates regarding the changes in the service plans. Hala will send the email notification when the new service plans are available.
Beta version has next limits for service using:
Number of intents
Number of entities
Number of queries
Number of users
Queries mean the input text (message) from the users.