Planning the Post-Event Lifecycle for Temporary Event Apps

Once an event ends, an app still holds sign-in accounts, memberships, uploaded photos, and support requests that must be handled responsibly. The author, who built From Strangers around temporary event communities, proposes designing this closing phase early rather than treating it as an afterthought. The suggested approach separates active participation, a read-only sharing window, and a closed event, with distinct deadlines for joining or uploading, viewing shared content, and eventual cleanup. Access rules should be enforced in the trusted data-access path rather than just by hiding interface elements, and closed-event pages should clearly explain the state. The article also notes that Firestore's TTL deletion is asynchronous and does not remove subcollections, so database expiration alone is insufficient for lifecycle management.