Size It Up is a game by Teej, published with Magnitudle / GriddleLink Games. If you want the original, visit the official Size It Up page. The rest of this article describes Howbigle, which we made ourselves.
What Howbigle offers
Each day, Howbigle gives you five objects. An adult human, drawn at a fixed 5 ft 7 in (1.70 m), stands beside an original silhouette. You swipe or pinch the picture, or drag a large slider, until you think the object is at its true height, length, wingspan, or depth. Then you lock in. A guess within 6% of the published size scores 100. The score then falls smoothly with the logarithmic error, so doubling and halving cost the same: both score 36. Five rounds make a total out of 500. You can copy or share a card of those scores without naming the objects or giving away the answers.
The item bank has more than forty objects: animals, buildings, vehicles, and geography. After each lock-in, Howbigle shows your guess overlaid on the true silhouette, the published figure in feet and meters, how many reference humans that equals, a short fact, and a source link.
Why we made a separate game
Size comparison is a genuine kind of curiosity. That curiosity is not owned by any one website, and it can be made honestly: original drawings, published measurements, and a clear statement of independence. The silhouettes, questions, colors, name, and scoring were made for this site. If you already play the original, you can keep doing that. If you want a second daily habit with a public source on every reveal, Howbigle is here.
Daily play and unlimited practice
The daily set changes at midnight in the eastern United States. Finish the five, and this browser will remember your score, your streak, and your best total. There is no account; clearing the site’s data will erase those records. Unlimited practice lets you keep going through the same bank and does not touch the daily total.
You can also read what a size comparison game is and a short page on Howbigle as a Size It Up alternative. The full curve is on the how to play page.
Questions about this comparison
Is Howbigle an official Size It Up game?
No. Howbigle is an independent game. It is not affiliated with, endorsed by, or published by Size It Up, Magnitudle, or GriddleLink Games.
What do games like Size It Up usually ask you to do?
They ask you to judge the relative size of a familiar object and a less familiar one, then score you on how close you got. Howbigle uses that general idea with its own artwork, questions, and scoring.
Can I play more than once a day?
The daily Howbigle set is five rounds, once a day. Unlimited practice is open at any time and does not change your daily score or streak.