Prove youKno Ball
Spin a random franchise and decade. Draft one legend per era. Set your starting lineup, sim the season — and chase a perfect 82-0. NBA, NFL, MLB, NHL & Premier League.
Animated demo: the machine spins a sport, decade and franchise, deals a starting lineup of legends, then sims a full season.
Every league. Every era.
Around 3,000 legends across NBA, NFL, Premier League, NHL and MLB — each sport with its own all-time pool, Daily Challenge and leaderboards.
Spin. Draft. Sim.
- 01
Spin the matchup
The machine deals you a random franchise and decade — across five sports and every era.
- 02
Draft one legend per era
Take the best player the spin allows, then lock in your all-time starting lineup.
- 03
Sim the season
Your starters decide the record. One bad pick and the run is on you. Chase a perfect 82-0.
Draft tonight’s games. Score live.
Weekly NFL. Nightly NBA. Draft real players from tonight’s games, score off live box scores, and the top 3 win B-Bucks.
- 01Draft from the real slate
- 02Points update off live box scores
- 03Finish top 3, win B-Bucks
Demo board · illustrative numbers
More 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.
Daily Challenge
Everyone gets the same spin. One shot to top the board — keep the streak alive.
The Slate
Weekly NFL and nightly NBA. Draft real players from tonight’s games and score live.
Daily 10
Ten trivia questions a day across all five sports. Don’t break the streak.
Head-to-Head
Same draft, two ballers. Let the sim settle it.
Leagues
Run a private season with your group chat — weekly matchups, playoffs, a champion.
Baller Pass
A season-long reward track: complete challenges, earn B-Bucks, unlock crests and flex.
Build-A-GOAT
Assemble the greatest player ever, attribute by attribute.
Leaderboards
Every sport, every mode — one global board to climb.
Players who kno ball
4.7 out of 5 on the App Store. Straight from the reviews, unedited.
Surprisingly tough in a good way
“The draft challenges are addictive, the interface is clean, and it’s surprisingly tough in a good way. It really makes you think about history, players, teams, and eras instead of just guessing.”
Insanely close to perfect
“This app is insanely close to perfect.”
Wannaknoballlll?!?!
“This app has made me realize how little I actually kno ball. So much fun to play and I learn a lot as I go.”
Questions, answered
Is iKnoBall free?
Yes. iKnoBall is free to play on iPhone and in your browser, with no account needed to start. iKnoBall Pro is optional and starts with a 7-day free trial.
How are player ratings calculated?
Every rating comes from real career production — per-game output, efficiency and peak seasons — scaled so players from different eras can be compared on the same curve. The season sim only uses your starters, so every pick matters.
What if my favorite player is missing?
Tell us. Player pools keep growing with updates, and suggestions from players go straight onto the list — email therealethanself@gmail.com with who is missing and for which team and era.
Which sports can I play?
Five: NBA, NFL, Premier League, NHL and MLB. Each sport has its own all-time player pool, Daily Challenge and leaderboards.
What is The Slate?
The Slate is iKnoBall’s live mode — weekly for the NFL and nightly for the NBA. Draft real players from that slate’s games, score off live box scores, and the top 3 win B-Bucks.
Can I play against my friends?
Yes. Challenge a friend head-to-head on the same draft, or start a private League and run a full season with your group chat.
How do I cancel iKnoBall Pro?
On iPhone, go to Settings › your name › Subscriptions › iKnoBall and turn off auto-renew. Web subscribers can cancel from Manage subscription in the app. You keep Pro until the end of the period you paid for.
“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.”