Zonday
Guess what one Amazon product sells for, with six tries and hot or cold arrows.
Every day: One Amazon (US) product a day, the same for every player, whose price you guess in six tries with higher or lower clues. New puzzle: Midnight UTC.

Zonday shows you one Amazon product a day and asks what it was selling for on Amazon US. You get six guesses, and each one comes back with an arrow and a hot or cold rating showing how far off you are. More details about the product are revealed as you guess.
About Zonday
Zonday is a small web game about shopping instinct. Each day it picks one product listed on Amazon in the US and shows it to every player, with its picture and name and a difficulty rating. Your job is to name the price.
You type a dollar amount and submit it. Each guess gets an arrow pointing up or down and a temperature: within 10 percent is hot, 10 to 30 percent warm, 30 to 100 percent cool, and more than double or half is cold. After your first guess the game reveals more about the item, such as its rating, review count and description. For items under $300 a guess within $3 counts as correct; for dearer items you must be within 1 percent. You have six guesses.
At the end you see the real price and how far your last guess was, and you can share an emoji line of your arrows. There is also a custom challenge mode built from a specific Amazon product link, but the daily item is the one everyone plays. It suits people who like price-is-right style guessing and a quick game that turns over at midnight UTC.
How to play Zonday
- Look at today's product and its difficulty.
- Type the price you think it sold for on Amazon US and submit.
- Read the arrow and temperature to see if the price is higher or lower and how close you were.
- Use the extra details revealed after each guess (rating, reviews, description) to adjust.
- Get within $3 (or within 1 percent for items of $300 or more) in six guesses to win.
Tips
- Make a wide first guess to find the right range, then narrow it by halves.
- Use the review count and rating as a hint to whether it is a budget item or a premium brand.
- Bundles and multi-packs often cost less than you would expect from the description.
Questions
When does a new Zonday item appear?
Every day at midnight UTC.
How close do I need to be?
Within $3 for items under $300, or within 1 percent for items costing $300 or more.
How many guesses do I get?
Six.
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