Something not working, or just want to ask a question? Start here.
Email us → support@getlongbox.app — we read everything and usually reply within a couple of days.Open the comic, tap the ••• menu, and choose "Wrong Comic?". Search for the right one and tap it. Your correction is permanent — automatic matching will never overwrite something you've fixed yourself.
Sign in with the same account, then re-import your comic files. Longbox stores your reading progress on our servers, but never your files — so the files have to come from your device or storage again, and progress reattaches once they're back.
Because we deliberately never upload them. Your comics stay yours, on your device. It's the same reason Longbox keeps working even if our servers are down.
Go to Settings → Privacy and turn off "Show me on the leaderboard." You keep every one of your stats — you just stop appearing to other readers.
Settings → Account → Delete Account. It removes your login, display name, synced progress, and stats immediately and permanently. Comics on your device aren't touched.
Check that Auto Metadata is on in Settings, and that you're signed in — online lookup needs an account. If it's on and still not filling in, email us with the comic's file name and we'll take a look.
The more of this you can include, the faster we can fix it: