Size
Two objects, one handle. The left one stays put — resize the right one until it matches how big it really is next to it.
Drag to compare
The reference object sits at the bottom left and never changes. Pull the corner handle of the second object with the mouse — or pinch with two fingers on a phone — until you think the size relation is right. Then lock in and see the true size ghosted over your guess, together with your accuracy.
Zoom, pan, fit
You can zoom the comparison window in and out and slide your object sideways along a subtle grid. Zooming only changes how much you see, never the ratio you set. After the reveal, Fit both frames both objects so you can see how close you were.
Endless and Round
Endless is a streak: land within 80% accuracy and you keep going, miss and it resets. A Round is 5 or 10 guesses in a row, up to 100 points each, added up — play it solo or in a lobby of up to five players with a time limit on every guess.
Frequently asked questions
How do I play?
Two objects stand side by side. The one on the left is fixed. Drag the handle on the corner of the right one until it looks as big, compared with the left one, as it really is — then lock in.
Is this like Size It Up?
It is a size-comparison game in that spirit — one fixed reference object, one you resize by dragging — built into NameThat with our own silhouettes and design.
What can I compare?
Animals, vehicles, buildings, everyday objects and even the Moon, Earth and the Sun — from an ant to the Sun. Every pair is picked so the difference is guessable.
How is my guess scored?
By accuracy: the smaller size divided by the bigger one, as a percentage. In Endless mode 80% or better keeps your streak alive. In a Round every guess is worth up to 100 points.
Can I zoom and move around?
Yes. Zoom the comparison window in and out, slide your object along the baseline of a subtle grid and use “Fit both” after the reveal. Zooming never changes the size ratio you set. On a phone you can pinch to resize.
Can I play with friends?
Yes. A Round is 5 or 10 guesses in a row, solo or in a lobby of up to five players with a time limit on every guess.
Do I need an account?
No sign-up. Open the game and start guessing.