Owner only
The trial
Hand a group a link, and every copy opened through it reports how the book is used — never what anyone writes. Close a group and its copies stop and erase themselves.
Checking who you are…
Sign in
This console is for the owner of the project. Everyone else sees nothing, and Firestore refuses them the data itself.
Launch a group
A group is one link. Give the same link to everyone in it — it does not identify anybody, it only says which trial the measurements came from, so two groups can be compared.
Groups
Closing a group is not a label: each copy checks this when it opens, and a closed one stops collecting and wipes what it had.
People
Invite someone by address. They sign in with that same address and their reading carries their name instead of an anonymous device id — which is the whole point, and also the thing to tell a parent before you start.
What came back
If nothing arrives
- Publish
firestore.rules— Firebase console → Firestore Database → Rules. Until then every write and every read is refused. - Enable Anonymous sign-in — Authentication → Sign-in method. It is how a device gets a stable id without anyone giving a name.
- Open a link yourself on a phone, accept the panel, read a chapter, then come back here and press Refresh.