Eligibility terms: Must be a government natural resource or public works agency, University natural resource education or research center, or non-governmental non-profit organization focused on aquatic resource conservation. Max of 5 free users per customer. Each data collector must have their own subscription with private log in that is not shared. Once storage is exceeded, you can no longer access historic trips. You must either delete content to stay within the 20 GB storage limit or change the subscription to a paid subscription.
Further detail on terms of the EcoSound Habitat+ subscription are found here.