Prove You
Know Ball
Draft your all-time roster, sim the season, and climb the leaderboard across five sports — NBA, NFL, Premier League, NHL & MLB. Download free on iOS, or play instantly in your browser.
The Slate — live weekly scoring
Draft your all-time lineup
Climb the leaderboards
Run a league with your group chat
Track your career statsEight ways to prove it
Every rating is grounded in real career production — no opinions, no filler. One bad pick and the run is on you. That’s the whole point.
Solo
Build all-time teams and climb the global leaderboard.
Daily Challenge
Everyone gets the same spin. One shot to top the board.
The Slate
Draft a fresh NFL squad every week and score real live fantasy points.
Head-to-Head
Draft against a friend and let the sim settle it.
Leagues
Run a private season with your group chat, all five sports.
Trivia
Prove your knowledge era by era.
Arcade
Fast sports mini-games between drafts.
Build-A-GOAT
Assemble the greatest player ever, attribute by attribute.
Spin. Draft. Dominate.
Free to play. Pro to dominate.
Start free — no account required. Go Pro when you want unlimited runs and every mode. Cancel anytime.
- Play free in your browser or on iOS
- Daily Challenge across all 5 sports
- Global leaderboards + your profile
- Head-to-Head, Trivia & Arcade
- Unlimited ranked runs — no daily cap
- Every mode unlocked, all 5 sports
- Stats Vault + full career dashboard
- Pro identity: gold name, crest & colors
- 7-day free trial, cancel anytime
iKnoBall Pro is an auto-renewing subscription — $2.99/month or $19.99/year. Payment is charged to your Apple ID at confirmation of purchase and renews automatically unless auto-renew is turned off at least 24 hours before the period ends. Manage or cancel anytime in your App Store settings.
“Everyone says they know ball. I built iKnoBall to make you prove it — no free picks, no easy mode, just you and what you actually know across all five sports.”