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App guide

How to use ko.lol in League of Legends

Hold Tab in game. Everything you need is already on screen.

Sample
The Build overlay over the game, on the matchup build: Giant's Belt to buy now, 900 gold and affordable, on the way to Warmog's Armor, then Mercury's Treads, Heartsteel, Spirit Visage and Thornmail.The Solve panel drawn over the game, first of its three options: Liandry's Torment, 3,000 gold to finish, 345 more health against their damage; Fated Ashes is the part to buy now for 900 gold, and the last row offers the upgrade to Solstice Sleigh.

Set up

Ready in two minutes

  1. Install

    Run the installer. If Windows shows a blue box, hit More info, then Run anyway.

  2. Sign in with Riot

    Approve the code in your browser. For your first 7 days, everything is unlocked.

  3. Pick Hold Tab

    Your panels show while you hold Tab, like the scoreboard.

  4. Queue up

    The app finds your draft and your game on its own.

Champ select

Win the draft

The app jumps to Draft on its own, right next to League.

Sample
Champion select in the ko.lol app: Fizz is the best mid pick for this draft at 58.7% win chance, ahead of Diana and Katarina, with the draft gauge and both teams.
  • Your best champs for this draft

    Every champ for your lane, scored against both teams, the bans and your rank. Flip to Who carries to see who wins lane and who ends games early.

  • Ban what hurts you

    The champs that hurt your team most in this draft. Switch to Your lane to ban your counter.

  • Hover and lock from the app

    Click to hover it in the client. Hold to lock in. The app never locks for you.

  • Runes, items and spells in one click

    Press Set in my client, or Import to client for the build. It all goes straight into League.

  • Runes set before you blink

    Turn on Rune Auto-Set in Settings. Lock in and your page is already done.

  • Builds for your whole team

    The app drops one link in champ select chat. Teammates open it on their phone.

In game

Hold Tab. Read. Play.

Every tool is its own panel. Hold Tab to see them, let go to hide them. While you hold Tab you can click a panel; every other click goes to the game.

  1. Sample
    The Build overlay over the game, on the matchup build: Giant's Belt to buy now, 900 gold and affordable, on the way to Warmog's Armor, then Mercury's Treads, Heartsteel, Spirit Visage and Thornmail.

    01 Hold Tab

    KO Builds

    The build that wins. Found by our ML, not by popularity.

    It shows the part to buy now, the item it builds into, and the rest of your build as small icons. It has two sources. Matchup is made for this game, against their team. Sleeper is a rare build that wins more than the usual one.

    Use it: Hold Tab and click the word at the top, or press Ctrl+Shift+B, to switch for this game. Settings picks which one every game starts with.

  2. Drawing

    02 Always on

    Skill Order

    Never waste a level up.

    When you have a skill point, it lights up the skill that ranked players on your champ level first.

    Use it: Press the key it shows.

    Shows up: On its own. No Tab needed.

  3. Sample
    The Live Intel overlay: farm 7.2 a minute and ahead of typical, KDA 2/0/1, kill share 50%.

    03 Hold Tab

    Live Intel

    Know if you're winning lane.

    Your farm against ranked games on your champ and lane, at this exact minute, at your rank. Plus who's fed on their side and when the next dragon or Baron is coming.

    Use it: Behind? Farm up before you fight.

    Shows up: From 3:00.

  4. Sample
    The Gold Read overlay: 15,050 gold in items against each enemy, from 16,800 down to 11,250, with the difference to you.

    04 Hold Tab

    Gold Read

    See who's fed.

    Every item on the scoreboard, added up for both teams. You see who's ahead of you, and by how much.

    Use it: Play around their biggest number.

  5. Sample
    The Duel Check overlay: the five enemies in a row, one marked as a 1v1 you lose and four you win.

    05 Hold Tab

    Duel Check

    Know the 1v1 before you take it.

    It plays out the fight with your stats against each enemy's level and items right now.

    Use it: Take the fights marked you win. Walk away if they win.

  6. Sample
    The Focus overlay: Kai'Sa, bot, is the one to hit.

    06 Hold Tab

    Focus Target

    Who you should focus.

    It predicts the whole fight and tells you who to focus. When nobody is worth it, it tells you not to fight.

    Use it: Focus that champ. When it's not worth it, don't fight.

  7. Sample
    The jungle route window drawn over the game: start red buff.

    07 Jungle

    Jungle Route

    Start your clear right.

    The camp that winning junglers on your champ start their clear on.

    Use it: Start there.

    Shows up: Jungle games, before your first camp.

  8. Sample
    The Solve panel drawn over the game, first of its three options: Liandry's Torment, 3,000 gold to finish, 345 more health against their damage; Fated Ashes is the part to buy now for 900 gold, and the last row offers the upgrade to Solstice Sleigh.

    08 Off by default

    Solve

    Pure math. Zero stats.

    Solve doesn't use player stats. It takes the game's raw numbers: every ability, every item, every rune, the enemy champions' stats and more. It plays out your fight against their team in real time. Whatever item wins that fight goes on top. That's why it sometimes picks items nobody builds.

    Use it: Hold Tab and click the arrows to see its top 3. Short on gold? It shows the part to buy now. When Solve and KO Builds pick the same item, lock it in.

    Shows up: Turn it on in Settings.

Your controls

All in the app, under Settings. Panels open where you left them.

  • Tab

    Peek

    Hold to show your panels. Let go to hide them.

  • Ctrl+Shift+A

    Cycle

    Hidden, on screen, move mode. Set your own key in Settings.

  • Ctrl+Shift+B

    Switch build

    Matchup or Sleeper on KO Builds, for this game. Set your own key in Settings.

  • Move panels

    Move

    Drag each panel by its top bar, then hit Done.

  • Pin

    Keep one up

    Pin a panel in move mode and it stays up all game.

  • Hold Tab, Always open, Off

    Per panel

    Pick when each panel opens. Move mode still shows the ones you turned off.

  • Panel opacity

    Fade

    See more of the game through your panels. Text stays sharp.

Your items

KO Builds and Solve

Two brains, two panels. You always know which one is talking.

KO Builds

The build that wins. Found by our ML, not by popularity.

KO Builds learns from millions of ranked games and retrains every 6 hours. That's why it's the best. It doesn't copy what everyone builds. Our own model goes through the stats to find the item that actually wins your game at that exact minute, in real time: your champ, your role, your rank when it matters, their comp, your items, their items, your runes, their runes, and much more.

Runs on
Millions of ranked games
Updates
Every 6 hours
Switch
On by default

Use it: Your main build. Follow it in order, or switch to Sleeper for a rare build that wins more.

Solve

Pure math. Zero stats.

Solve doesn't use player stats. It takes the game's raw numbers: every ability, every item, every rune, the enemy champions' stats and more. It plays out your fight against their team in real time. Whatever item wins that fight goes on top. That's why it sometimes picks items nobody builds.

Runs on
The game's own numbers
Updates
Every patch
Switch
Turn it on in Settings

Use it: Hold Tab and click the arrows to see its top 3. Short on gold? It shows the part to buy now. When Solve and KO Builds pick the same item, lock it in.

Plans

Free and Premium

Every feature, both plans. Premium covers every match.

First 7 days

Everything, every match. No card.

Free

Every feature for 2 matches every 24 hours. With ads.

Premium

Every match, no ads. $2.41 a month billed yearly ($28.88), or $3.88 monthly. Card or crypto. Cancel any time.

Buy Premium on ko.lol. See Premium

Tips

Six quick tips

  • Play in Borderless

    Panels missing or flickering? Set League to Borderless in Video settings.

  • Place your panels once

    Keep them off your minimap and abilities. They stay put every game.

  • Both agree? Buy it

    Run KO Builds and Solve together. When they pick the same item, that's your buy.

  • Leave it running

    The app starts with Windows, so it's ready before you queue.

  • Empty panel?

    Open Settings, Our data. LIVE means all good. SERVER ISSUE means it's on us.

  • Check your grade

    Open Games after a match. All ten players get a score out of 100.

Why we're ahead

Why we're ahead

  1. 10,374,283 ranked games

    Recorded by us in 15 regions, Iron to Challenger. All ten players, every item, the minute they bought it.

  2. Retrained every 6 hours

    Your advice keeps up with the patch, four times a day.

  3. Tested before it ships

    A new model goes live only if it beats the current one on games it has never seen.

  4. Built for your game

    Draft advice uses your rank. Solve plays out the fight against the five enemies in front of you.

We know of no other League tool that retrains every 6 hours and tests every update this way.

Get it free

Windows 10 and 11. Every feature free. Premium is optional.

ko.lol desktop

Your next item, live in your game.

Read from the enemy team's items, stats and champions. Your best pick in champion select, too.

Download free Free. For Windows.
Sample
The Build overlay over the game, on the matchup build: Giant's Belt to buy now, 900 gold and affordable, on the way to Warmog's Armor, then Mercury's Treads, Heartsteel, Spirit Visage and Thornmail.
Get ko.lol for desktop Free. For Windows.