Outbidoku vs Sifter Chat
Neck and neck on boosts. Profiles, pricing and deals below.
Outbidoku
Outbidoku: free Sudoku, sponsored by whoever bids the most
community boosts
⚡ 0
pricing
Paid
what it is
Play free Sudoku online, no account needed. Nine companies own the nine digits: outbid one and your logo replaces it in every grid.
Sifter Chat
Authenticated Location Chat Rooms
community boosts
⚡ 0
pricing
Freemium
what it is
Join or create a chat room only meant for right here, right now. Sifter is authenticated proximity chat — only people physically present can join. Free on iOS 16+.