Sums Stacker

Sums Stacker

by Math Doodles

8 ratings
17 reviews

Archived App (Last seen on 3 Apr 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • December 9, 2009
  • September 13, 2017

Features

Sums Stacker screenshot #1 for iPhone
Sums Stacker screenshot #2 for iPhone
Sums Stacker screenshot #3 for iPhone
Sums Stacker screenshot #4 for iPhone
Sums Stacker screenshot #5 for iPhone
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About

This educational game helps practice addition and subtraction skills through a unique number stacking puzzle. It offers various ways to represent numbers, catering to different learning levels and ages. Engage in strategic problem-solving or race against the clock to improve math fluency.

Addition and subtraction practice
Number stacking puzzle
Multiple number representations
Two game modes: solve and race
Two difficulty levels
Develops number sense and problem-solving
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What's New in Sums Stacker

1.0.3

September 13, 2017

This app has been updated by Apple to display the Apple Watch app icon. updated for latest iOS.

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User reviews

Fantastic

This is educational software at its very best: clever, beautiful, and enjoyable. The hand-drawn UI is really charming, and the behaviors (movement and sound) build on it well. The ability to choose different numbering systems (dice, roman nums, braille, tallies, binary, hex, etc.) suggests a deep lesson, that math is both true *and* cultural. And the range of problems - and problem-solving techniques it invites - is impressive. There isn't a patronizing pixel in this app. And, best of all, it made me curious about the dev's other apps - some of which are even more interesting.
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Great Math app

Goes beyond just basic math skills. Enough with all the basic addition and subtraction apps. We need more like this app

Great

Such a tight, simple and effective app. for re-enforcing math skills.

LOVE all of these apps!

This app (and all of them in this series) gives a fun way to 'practice' addition. The doodle-y graphics, dice, fingers, holes, tally marks… etc… just make it that much more entertaining… but the best thing is that you aren't just given equations to solve, but problems to solve. One of my sons likes it on 'solve' mode, where he can take the time he needs to make each sum correct, and the other likes racing the clock to see how quickly he can solve it. This is a must for classroom iPod kits.
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Simple but fun

My 5 year old really likes this game. It's quite simple but challenging enough to keep him interested. He already like maths and numbers and his older sisters aren't so interested. Plays on it a few times a week.

Developer apps

FAQ

What is Sums Stacker?

Sums Stacker is an educational game designed to help users practice addition and subtraction. It presents a puzzle where numbers are stacked, and players must arrange them to match target sums.

What math skills does Sums Stacker help with?

Sums Stacker focuses on developing number sense, addition, and subtraction skills. It also encourages problem-solving and mathematical reasoning in an enjoyable way.

How does Sums Stacker represent numbers?

The game offers a wide variety of number representations, including dice, fingers, numerals, Roman numerals, Spanish words, and US coins, catering to different learning styles and ages.

What are the game modes in Sums Stacker?

Sums Stacker features two primary modes: 'Solve Mode' for strategic puzzle-solving and 'Race Mode' for a timed challenge to score points.

What are the difficulty levels in Sums Stacker?

There are two difficulty levels: 'Easy Mode' where all target sums are visible, and 'Hard Mode' where one target sum is hidden, increasing the challenge.

Is Sums Stacker suitable for young children?

Yes, with an age rating of 4+, Sums Stacker is designed to be accessible for young learners. The varied number representations allow for gradual progression in abstraction.

What devices can I play Sums Stacker on?

Sums Stacker is available for iPhone and iPod Touch devices, optimized for their screen sizes.

How much does Sums Stacker cost?

Sums Stacker is a paid application, available for a one-time purchase of $1.99.