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Alternatives

Products that do what Estimate does

One Question. 6 chances. Feel the Heat

  1. 1

    How well can you estimate a minute?

    2021

  2. 2

    Answer a question once a day for the chance to win £100/$100

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    24/7 live stream quiz game with thousands of questions.

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    Riddle115

    Beautifully intuitive quiz maker & marketing platform

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    BeTweet160

    Your thoughts, for real

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    Convert prospects into customers with Live Tasks suggestions

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  7. 7

    A 24-hour playful experiment in art and time

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    Guessly96

    A daily mini guessing game that roasts you when you fail

    Jan 2026

  9. 9

    A daily guessing game in Slack where you can win $1,000

    2019

  10. 10

    Test your luck against the the world, be exceptional

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  11. 11
    HotOrCold101

    Know how much it went hotter/colder than yesterday

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  12. 12

    600+ dumb and crazy challenges to face within 7 seconds

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  13. 13

    Use Google to answer these questions quickly!

    2016

  14. 14

    10x in 10 days, challenge for marketers

    2022

  15. 15IB

    I've gotten to the point in my career where I now make strategic decisions often (hiring, firing, choosing what equipment to go with, etc.), as well as in my personal life where I need to strongly weigh my options for a big purchase or investment. I found a not-so-surprising parallel between the two as these decisions "resolved." Am I making good decisions or am I getting lucky? Did some research, read some books, and realized I should get in the habit of tracking my decision process. That quickly turned into the idea that formed Convexly. The landing page is a 10-question calibration quiz…

    Apr 2026 · convexly.app

  16. 16

    Daily Price Guessing Game

    24d ago · guessforglory.com

  17. 17WS

    Some months ago @andrewrn tried to create a Wordle-style site for order-of-magnitude thinking. This was a wonderful idea, but the actual site was somewhat over-engineered and confusing. (https://news.ycombinator.com/item?id=43632278) In the past week, I looked at this idea again and built a very simple site which gives you a new Fermi estimation question every day: How many new cars were sold in the US in 2024?; How many humans have ever lived (including those currently alive)?; How many chickens are slaughtered for meat every year? To win, you need a guess within ±20% of the…

    2025 · fermiquestions.org

  18. 18CY

    Hi HN! Excited to show off the project we've been working on for the last couple months. We started with an idea for a crazy twist on prediction markets: You come up with a question for traders to predict, and then decide the outcome yourself. For example, you could create a market on “Will my date with [X] go well?” Anyone can bet on it, and the bets create a forecast on the chance your date goes well. After the date is over, you get to judge the result and reward the traders who picked the correct side. There are so many ways for this mechanism to go wrong: the creator of the market can be…

    2022 · manifold.markets

  19. 19MR

    My dad makes the questions, I made the site. I think the genre and the level of difficulty is suited for HN. Hope you enjoy. (I promise no AI-generated questions, they are all hand made!).

    Apr 2026 · kviss.eu

  20. 20

    What's the product behind the blurred image?

    2022

  21. 21

    Five daily questions. Compare your answers with the world.

    11d ago · hownormalareu.com

  22. 22

    Get your daily news in trivia format.

    May 2026 · apps.apple.com

  23. 23

    The daily game that measures how overconfident you are

    27d ago · theballparkgame.com

  24. 24AD

    I made a game based in questions like "How much money would it take for you to...?"

    2022 · playmoneyquiz.com

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