Support
Help with Ball Knowledge
Getting started
How do I play on one phone?
On the home screen tap Local, add everyone's names, then pick a game. Pass the phone to whoever's turn it is. No internet needed.
Which games are there?
Auction Draft: take turns bidding $20 on athletes to fill a roster. Imposter: one player only gets a hint, so vote them out. Par: aim for a ranking like #71 and name athletes; every spot off is a stroke. Tap How to play in Settings for the full rules.
Playing online
How do I host a game?
Tap Online, then Host. Pick the game and settings, then share the four-letter code. When everyone's in, tap Start.
How do I join a game?
Tap Online, then Join. Type the host's four-letter code and your name. Everyone needs Ball Knowledge on their own phone.
Why doesn't my room code work?
Double-check the four letters with the host (codes never use I or O). A code stops working when:
- the host closed the room or the game ended,
- the game already started,
- the room is full (5 players), or
- the room is more than 24 hours old.
Ask the host to open a new room.
It says "Pick a different name."
Someone in the room already has that name, or it isn't allowed. Names are 1–16 characters. Keep it clean.
It says "Reconnecting" or "You're offline."
Online play needs Wi-Fi or cell data. If your connection drops, you have a short while to get back before your turns are skipped. Local games work without internet.
It says "Try again in a few seconds."
You tapped a little too fast, or made a new room right after closing one. Wait a moment and try again.
Still stuck?
Email support@cartava.app with your iPhone model and what happened. We usually reply within a couple of days.