Your results, kept private
Pick up where
you left off.
Continue a challenge, see your private results, or choose what you want to share.
- Everything you do stays private by default
- Sharing for research is a separate choice
- You decide what gets shared
HIL//ARENA
Participant access
Try the practice demo
This is a practice demo that saves your choices only in this browser. No account is created, and nothing you type is sent to us.
Separate choices, by design. Only the data needed to run your challenge is required. Research use, a public profile, and employer sharing are each optional, separate choices.
This demo does not record real consent. Before you take part for real, we will show you the actual terms, how to withdraw, how long we keep your data, and how payment works.