Does Hellosaurus contain ads? Hellosaurus December 10, 2020 18:18 Updated No! Hellosaurus is 100% ad free -- and will always be! We promise a safe, high-quality environment for all kids. Related articles What devices can I use for Hellosaurus? How much does Hellosaurus cost? Someone sent me a subscription as a gift, what do I do? How do I download Hellosaurus? How do I remove Hellosaurus from my device? Comments 0 comments Please sign in to leave a comment.