Candy Kingdom

Train your number 🔢 sense: estimate real quantities and rate how sure you are.

Candy Kingdom helps you get better at estimating numbers 🔢 and knowing how sure you are.

You are asked how many, how far or how long. You do not need to recall a fact. You make a guess, and the app 📱 shows how close it was and what to remember next time ⏱️.

Two ways to answer:
- Range round: set a bracket you believe holds the true number 🔢, then pick 70%, 80% or 90% confidence.
- Ballpark round: pick a single number 🔢 and see 👀 how many orders of magnitude off it was.

What you can do:
- Play ▶️ a daily set of five items, or start 🚀 a quick round of ranges only or ballparks only.
- Practise by topic: distance and size, people and places, time ⏱️ and history ⏳, money 💰 and scale, nature and energy, speed ⚡ and motion.
- Choose an easy, mixed or hard band.
- Break a hard question into factors, multiply or divide them, and see 👀 which factor moves your answer most.
- Read your calibration: stated confidence against how often your brackets held, an overconfidence index and width efficiency.
- Try the scoring demo and drag ✋ a sample guess to watch 👀 the points change.

Each result shows the true value, your points and a short note 📝 worth remembering. Over time ⏱️, Candy Kingdom shows which kinds of numbers 🔢 you misjudge and where your confidence runs ahead of your results.

Use Candy Kingdom for a few minutes a day to build 🔨 a better feel for scale.