Pick a bomb for your 15 second timer
Any bomb you pick runs for 15 seconds. Round Buddy is free to play. Unlock all 50+ bombs and 140+ worlds for $4.99 with no ads. Every bomb is unique! Watch for different animations, sounds, and explosions.
For home
Unlock all 50+ bombs and 140+ worlds
Every bomb is unique, with lots of different booms, and you can put any bomb in any of 140+ animated worlds. Pay once, use on up to 5 devices. Removes all outside ads from this site.
For teachers
Classroom license
Every bomb and every world on up to 30 school devices, for one payment.
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Other timer lengths
Fifteen seconds is the sweet spot for taking turns. This free 15 second bomb timer keeps a card game, a board game, or a circle-time game moving without pushing anyone into a silly move. One player, one fuse, one turn, and then it is the next person's problem.
It is the right length for partner swaps too: fifteen seconds to talk, then change over, then change back. Think-pair-share, buddy reading, and roll-and-retell all run on that rhythm, and a burning fuse says "swap now" far better than a grown-up counting down does. For a secret length that could go off at any moment, try Hot Potato.
Away from school it makes a tidy decision timer, the sort that settles an argument about which film to watch before it properly starts. Want a slightly longer turn? The 30 second bomb timer is the next rung up the ladder.
Teaching a class? The classroom timer runs the same bombs on the smartboard, with no ads on the page.