What Glimpse keeps, and why
Glimpse is a private gallery run by one person. It has no ads, and it sells or shares nothing with anyone.
When you sign in with Google, Glimpse keeps your name, email address and profile picture. It uses them to check your invitation and to show who you are signed in as. It asks Google for nothing else.
Clips and messages that you add are stored so the gallery can show them. Clips are stored on Cloudflare, and account records on Turso.
Visits are counted with Plausible, which sets no cookies and records no personal data. When a page breaks, a report of the error and the page it happened on is sent so it can be fixed.
To have your account and everything tied to it deleted, ask the person who sent your invitation.