If you want the full version and license for commercial use,
you can purchase here :

https://staircaselab.com/product/reallax-reaxio/

Version : 

1. Reallax Reaxion.otf
2. Reallax Reaxion.ttf
3. Reallax Reaxion.woff
4. Reallax Reaxion Ordinary.otf
5. Reallax Reaxion Ordinary.ttf
6. Reallax Reaxion Ordinary.woff
7. Reallax Reaxion Tilted.otf
8. Reallax Reaxion Tilted.ttf
9. Reallax Reaxion Tilted.woff