Yes, the ZAZA.rocks Free edition is entirely free!
It offers up to 500 content items totaling 1 GB of storage per bag, for a period of 3 months and up to 1 GB of bandwidth. Expiration is extended to 6 months if you register your bag. Additionally, you’ll be notified by email when your bag is about to expire.
So what happens if you want to keep your bag around for longer than that? No worries, as of January 2020 it will be possible to upgrade your bag to ZAZA.rocks Pro Edition, unlocking premium features and including a credit-based payment system allowing to extend (more time), deepen (more storage) and/or widen (more bandwidth) your bags at fractional cost. So any stakeholder can insert a coin to keep the music going. Just like a jukebox.