New Challenge your friends online Steel-tip darts · Automatic scoring

You throw. Your phone keeps score.

Put your phone in front of the board: it spots every dart and keeps the score. With friends, or online against a friend at home. No hardware, no subscription.

  • Free
  • iPhone and Android
  • Works offline
Throw's game screen during a 501: the player to throw, their remaining score and their volley T20, S1.

Three steps and you're playing

  1. Set the phone downOn a stand, from the side, 1.5 to 2 m from the board. It has to see the whole board.
  2. It finds the board itselfIn a few seconds. Nothing to set up.
  3. ThrowEvery dart is scored as soon as it lands. Wrong call? One tap to fix it. Pull your darts and the next turn starts.

And with friends? The whole crew on one phone, or a friend at home, online. Play together

New · Online play

Together, here or online

Throw doesn't just count your darts: the crew around the board, teams, and the friend playing from home.

  • A friend, each at homeEach at their own board with their phone: the game live, and a picture of their board at every dart.
  • Challenge a friendPick the game and its rules: your challenge reaches your friends, even with the app closed.
  • Up to 8 on one phoneThe whole crew around the same board, each for themselves or in teams: the phone knows whose turn it is.
  • The big screenThe score shown big on the living room TV or the pub screen.
An online 501: the opponent's turn, their volley shown with a picture of their board.

Everything runs on your phone

  • Nothing to buyNo box, no special camera, no subscription. Your phone is enough.
  • OfflineOnce installed, the app works without a network, in the garage or at the back of the pub.
  • Your images stay with youScoring is computed on the phone, no image is sent anywhere to count your darts.
  • Reliable, and honest about itOn our test sessions, about 9 darts out of 10 land in the same segment as with a 3-camera system. For the rest, one tap is enough.
A 180 announced big on the game screen.

Install the app

Throw installs from your browser, no app store needed.

iPhone

  1. Open throw.maz-ui.com in Safari.
  2. Tap "···" then "Share" (iOS 18: Share in the bottom bar directly).
  3. Choose "Add to Home Screen", then "Add".

Android

  1. Open throw.maz-ui.com in Chrome.
  2. Tap "Install app" (or the ⋮ menu, then Install).
  3. Start Throw from your home screen.
The step-by-step guide, with screens

FAQ

Which dartboards?

Traditional steel-tip boards (bristle), standard size. Electronic boards already keep the score themselves.

Which phone?

A recent iPhone or Android phone. The phone test in the app tells you in 10 seconds whether yours can handle it.

Can I play a friend online?

Yes. Each at their own board with their phone, and you see a picture of their board at every dart. With a free account you challenge your friends; without one, a game is shared with a link (beta).

How many players?

Up to 8 players on one phone, each for themselves or in teams. Online, it's one on one for now.

Can I show it on the TV?

Open throw.maz-ui.com/app/screen on the TV or a computer, and type its code on your phone. Your games show up there in large.

What if a dart is scored wrong?

Tap the dart on screen and pick the right value. A bounce-out is logged as "Bounce" or "Miss" in one tap.

Does it cost anything?

No. Throw is a personal project, free and ad-free.

Do I need an account?

No. A free account keeps your stats on all your devices and unlocks friends. Online without an account (beta), a first name is enough.

All rules

Your board is waiting.

Open the app, set your phone down, throw.

Play now

Automatic darts scoring with your phone camera.

RulesBlogInstallPersonal, non-commercial project.dart-sense calibration model (bnww), CC BY-NC 4.0. darts-model tip model (ahie), Apache-2.0.