Sum Drop

Kingkan Banyenngam

In-app purchases

About this game

Pop the balloon with the right answer before it floats away.

Sum Drop is a fast arithmetic game set in a calm evening sky. A question hangs in the air. Balloons drift up from below, each carrying a possible answer, and they only stay in reach for a few seconds. Tap the right one before it disappears into the clouds.

THREE WAYS TO PLAY

• Solo – Beat the clock. Start with 60 seconds and 3 lives. Every correct pop adds time. Pop ⏱️ balloons for a bigger boost and dodge the 💣.
• Battle – 1 vs 1 on two phones. Same balloons, same moment. First to pop the right balloon wins the round.
• Party – Up to 5 friends in one room. Faster pops score more points.

Create a room and share the 4-letter code, or join a friend's room in seconds. No account needed.

THE SKY GETS BUSIER

Something new arrives every level:
• Wind pushes balloons around
• Bomb balloons hide among the answers
• Clouds drift across and cover the numbers
• Tricksters swap places mid-flight
• Bigger, tougher sums as you climb

LEARN FROM EVERY MISS

Wrong answers cost a life, but the correct balloon glows gold so you always see what it should have been. Praise is short and cheerful. Never punishing.

WEEKLY LEADERBOARD

Save your best Solo score and see how you rank against players around the world. The board resets every week, so there is always a fresh shot at the top.

CLAIM YOUR NAME

An optional one-time purchase lets you lock a name so only you can use it in rooms and on the leaderboard, with a gold ✦ badge next to it.

GOOD FOR

• Kids practising addition, subtraction, multiplication and division
• Families playing together on their phones
• Anyone who likes a 60-second brain sprint

Free to play. No ads. No sign-in.

What’s new

Sum Drop 1.0.0 — pop the balloon with the right answer before it floats away.

New in this build:
• A new opening: the balloons float in when the app starts.
• Creating or joining a room now shows progress, so a slow connection can't be mistaken for a frozen button.
• Top scores: pull down to refresh, and a back button that matches the other screens.
• Version and release date shown on the home screen.