What are some alternatives?
When comparing CuriosityStream VR and Facebook Spaces, you can also consider the following products
Spatial - Collaborate from anywhere in AR
VRChat - Create and play in virtual worlds with others
VeeR VR - Global VR video community
BBC Taster VR - VR content from the BBC to your smartphone
Amazon Sumerian - A cloud platform to create VR, AR, and 3D experiences
IKEA VR Experince - Explore and interact with an IKEA Kitchen in Virtual Reality