Blocking is the strongest privacy control PopIn offers. It's silent (the blocked person isn't told), one-sided, and reversible.
Block someone
Open their profile
Either from a chat header, a comment author, or a guest list.
3-dot menu → Block
Confirm on the dialog. The action is instant.
What blocking does and doesn't do
| Does | Doesn't |
|---|---|
| Stops them messaging you | Tell them they've been blocked |
| Stops them reacting or commenting on your posts | Delete past messages or comments |
| Removes their RSVPs to your events and blocks new ones | Report them (blocking and reporting are separate) |
| Hides their posts and comments from your view | Hide your public events from them (events are listed by name) |
| Stops them tagging or mentioning you | Block a new account they create (no device fingerprinting) |
| Removes any friend or follow connection | Restore prior friendships if you unblock later |
Unblock
Open Settings → Privacy
Scroll to the Blocked users section.
Tap Unblock next to the person
Reverses everything but doesn't restore friend/follow connections. Send a friend request again if you want that back.
Block vs report
Blocking is a personal action - it stops one person interacting with you. Reporting is a moderation action - it asks the PopIn team to review the behaviour for everyone. For mildly annoying, block. For rule-breaking (harassment, hate speech, spam), report AND block.
What the blocked person sees
From their side, you effectively don't exist on PopIn. Their messages to you appear sent on their end but never reach you. RSVPs to your events fail with a generic "you can't RSVP to this event" error. They aren't told they've been blocked - PopIn just behaves as if you're invisible.
Limits of blocking
Blocking is account-level, not device-level. If the blocked person creates a new account, the block doesn't carry over. For repeat-offender stalking or harassment, the right escalation is block + report + (if needed) involving the police.