Does Hellosaurus contain ads? James Ruben 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 How do I download Hellosaurus? How do I remove Hellosaurus from my device? Do I need internet access to use Hellosaurus? What devices can I use for Hellosaurus? Comments 0 comments Please sign in to leave a comment.