DeciBall
Free to play · no sign-up

Stop overthinking.
Shake it.

DeciBall is the app that just decides. Ask a yes-or-no question, shake the ball and move on with your day. When the choice really matters, Smart Decide weighs your options and tells you why.

  • Answers in a second
  • English & Português
  • No account needed
Coming soon onApp StoreComing soon onGoogle Play
Tap the ball, press Space or shake your phone. Free, no sign-up.
Try one:
How it works

Three seconds from doubt to done.

  1. 1

    Ask

    Think of a yes-or-no question, or type it in. "Should I order delivery?" works. So does "Should I text them back?".

  2. 2

    Shake

    Tap the ball, press Space or shake your phone. The answer floats up in the lens.

  3. 3

    Go

    Take the answer, or notice that you were secretly hoping for the other one. Either way, you decided.

Three ways to decide

From pure fun to properly reasoned.

Start with the ball. Use Quick Decide for everyday calls. Save Smart Decide for the choices that keep you up at night.

Shakefree

The classic ball, reinvented.

Twenty hand-written answers, haptics and a share card made for Stories and TikTok.

  • Unlimited and offline
  • Shake your phone to answer
  • Share your answer card
Quick Decidecredits
Should I go to the gym tonight?
YES78% sure
yes 78%no 22%

A real yes or no, with confidence.

An AI judgment model answers your yes-or-no question in about a second, with how sure it is.

  • YES / NO + confidence %
  • Free credits, more with a short ad
  • Spots questions that need Smart
Smart Decidepro
Decided · 7.9 / 10Tacos
PriceSpeedHealth★
Tacos9857.9
Pizza7936.6
Sushi4595.6

For choices with real trade-offs.

A short interview, one question per screen. You say what matters; every option gets a score and a clear winner.

  • Questions specific to your decision
  • Scored table you can trust
  • Gut check + decision history
Why DeciBall

Decision fatigue is real. Most choices don’t deserve it.

We make hundreds of small decisions every day, and each one spends a bit of the same energy we need for the ones that matter. Asking a chatbot usually gets you three paragraphs of "it depends".

DeciBall gives you an answer, not an essay. For small things, a shake is enough. For bigger ones, Smart Decide makes the trade-off visible, so you can choose with a clear head.

1 sto a Quick Decide answer
3ways to decide
0sign-ups to play
Need ideas?

Questions people shake for.

Tap one and the ball answers it.

FAQ

Good questions.

Is DeciBall free?

Yes. Shaking the ball is free and unlimited, here and in the app. Quick Decide comes with free credits and you can earn more by watching a short ad. Smart Decide is part of DeciBall Pro.

Do I need an account?

No. DeciBall works without sign-up. Your history stays on your device.

Should I really follow the answer?

DeciBall is for entertainment and personal reflection. For small calls it is a great tie-breaker. For health, legal or money decisions, talk to a professional.

How is the ball’s answer chosen?

The ball picks one of twenty answers at random: ten yes, five maybe and five no. Quick Decide and Smart Decide use AI models instead.

Which languages does it speak?

English and Brazilian Portuguese, with more on the way.

When is the app coming out?

Soon, on the App Store and Google Play. Meanwhile, the ball on this page is all yours.

Your next decision is one shake away.

Get DeciBall on your phone for Quick Decide, Smart Decide and the share card.

Coming soon onApp StoreComing soon onGoogle Play
Shake the ball now