1. You press one face
Open the site and tap one of five faces — from very low to very high mood — once a day. That single press is the entire input. No questionnaire, no scrolling.
2. We aggregate everyone's vote
Every vote is mapped to a 0–100 score. We compute the mean across all qualifying votes for the current UTC day to produce the global Mood Index. Country and segment indices use the same formula on filtered subsets.
3. Public numbers respect a 50-vote threshold
Any bucket — global, country, age range, industry — is only published when at least 50 people have contributed. Below that, the number is suppressed. This protects individuals and keeps the signal stable.
4. The dashboard refreshes every 15 minutes
Aggregates are served from a snapshot that rebuilds on a fixed schedule. This makes near-threshold timing attacks harder and keeps the public view consistent.
5. Personal history is yours alone
If you sign in (optional, Google only), you get a private dashboard with your streak and history. Your personal data is never mixed into any other user's view.
For the exact formulas, suppression rules, and limitations, read the methodology.