Sum Rush: Mental Math Games
Arithmetic & Equation Puzzles
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Quick sums, big combos. Solve, compare and fill the gap against the clock, then come back and beat your own best.
Sum Rush is mental math that moves. Short, snappy puzzles, a clock that keeps you honest, and combos that make your brain feel fast.
THREE KINDS OF PUZZLE
• Solve: type the answer to a quick sum like 7 × 8 or 36 ÷ 4.
• Compare: pick the sign that makes it true: greater than, less than or equal.
• Fill the Gap: find the missing numbers and signs so the equation works.
THREE WAYS TO PLAY
• Beat the Clock: as many as you can in 60 seconds.
• Sudden Death: one mistake and it's over, and the clock gets faster as your streak grows.
• Endless: no clock, no score. Just puzzles.
Pick Easy, Medium or Hard for each.
CHAIN YOUR COMBOS
Get answers right in a row and your combo climbs. Hold your nerve and watch the score jump.
A LITTLE HELP WHEN IT'S TIGHT
Earn coins as you play and spend them on abilities:
• Time Freeze stops the clock for 5 seconds.
• Skip moves past a stinker without breaking your combo.
• Hint gives you a nudge on a Compare or Fill the Gap blank.
WATCH YOURSELF GET QUICKER
Personal bests for every mode, accuracy by puzzle type, your longest combo and your best Sudden Death streak.
MADE TO FEEL GOOD
Big, clear numbers, a satisfying number pad, gentle haptics and sounds you can switch off. Light and dark appearance. No account needed; your progress stays on your iPhone.
Rounds are ad-free. Remove Ads is a one-time purchase if you'd rather not see banners in the menus either.
Math that tickles your brain. Ready? Rush.
Ratings & Reviews
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The developer, Raitis Saripo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Raitis Saripo
- Size
- 9.3 MB
- Category
- Puzzle
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Coin Pack — Large $9.99
- Coin Pack — Medium $4.99
- Remove Ads $2.99
- Coin Pack — Small $0.99
- Copyright
- © Raitis Šaripo
