Comparison

Moose Math vs Eggy Add to 20

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Moose Math

This app offers an engaging mathematical adventure for children aged 3-7, teaching core concepts like counting, addition, and subtraction through interactive games. Kids can earn rewards to build and decorate a virtual city while developing essential math skills aligned with early elementary standards.

Highlights
  • Counting, addition, and subtraction practice
  • Geometry and sorting activities
  • Interactive multi-level games
  • Reward system for city building
  • Parental progress reporting
  • Aligned with Common Core Standards
Read full description

Moose Math engages kids in a mathematical adventure and teaches counting, addition, subtraction, sorting, geometry and more. While playing 5 multi-level activities in the Moose Juice Store, Puck’s Pet Shop and Lost & Found, kids can earn rewards to help build their own city and decorate buildings. Moose Math introduces a new whimsical group of Duck Duck Moose characters, The Dust Funnies, who help with mastering math skills. Moose Math is aligned with Common Core State Standards for Kindergarten and 1st Grade and includes a Report Card section where parents and teachers can monitor progress and find additional skill-building activities. AGES: 3-7. CATEGORY: Curriculum ACTIVITIES Moose Math features 5 engaging math activities: 1) MOOSE JUICE: Make smoothies while practicing counting, addition and subtraction 2) PAINT PET: Match the pets by counting the number of dots 3) PET BINGO: Solve addition, subtraction and counting problems to get BINGO 4) LOST & FOUND: Learn and sort through shapes and colors 5) DOT TO DOT: Help the Dust Funny find his way home by joining the dots SKILLS Kids will learn the following math skills based on Common Core State Standards: NUMBERS: -  Understand the relationship between numbers and quantities -  Solve word problems and algebraic thinking -  Practice number pattern recognition COUNTING: -  Count by 1’s, 2’s, 5’s and 10’s -  Master counting to 100 ADDITION & SUBTRACTION: -  Add and subtract by 1’s, 2’s, 5’s and 10’s -  Add and subtract up to 20 -  Learn to add and subtract with numbers, dice and rekenrek racks GEOMETRY: -  Master geometry at Kindergarten and First Grade levels -  Learn to identify and recognize shapes MEASUREMENT: -  Understand and compare lengths PARENT REPORTING: Includes a Report Card section where parents and teachers can monitor progress for each child and learn about new skill-building activities. DEVELOPED WITH EDUCATORS: -  Developed in conjunction with Stanford University Educator, Jennifer DiBrienza, PhD in -   Early Elementary Education and former NYC public school teacher (K-Grade 2) COMMON CORE STANDARDS: K.CC.1, K.CC.2, K.CC.4, K.CC.6, K.OA.1, K.OA.2, K.OA.5, K.MD.2, K.MD.3, K.G.2, K.G.3, K.G.4, 1.OA.1, 1.OA.2, 1.OA.6 ABOUT DUCK DUCK MOOSE (A wholly-owned subsidiary of Khan Academy) Duck Duck Moose, an award-winning creator of educational mobile apps for families, is a passionate team of engineers, artists, designers, and educators. Founded in 2008, the company has created 21 top-selling titles and has received 21 Parents’ Choice Awards, 18 Children’s Technology Review Awards, 12 Tech with Kids’ Best Pick App Awards, and a KAPi award for “Best Children’s App” at the International Consumer Electronics Show. Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. Duck Duck Moose is now part of the Khan Academy family. Like all Khan Academy offerings, all Duck Duck Moose apps are now free, without ads or subscriptions. We rely on our community of volunteers and donors. Get involved today at www.duckduckmoose.com/about. Check out the Khan Academy app to learn and practice all kinds of topics for elementary school through college and beyond. We’d love to hear from you! Visit us at www.duckduckmoose.com or drop us a line at support@duckduckmoose.com.

About

Eggy Add to 20

This app helps children aged 4-7 develop addition skills up to 20 through six interactive games. It features bright animations, catchy music, and unlockable characters to keep young learners motivated and engaged.

Highlights
  • 6 interactive addition games
  • Addition skills up to 20
  • Unlockable characters as rewards
  • Multiple difficulty levels
  • Choice of accents
  • Engaging animations and music
Features
Read full description

Eggy Add to 20 is a fun and motivational app that teaches children aged 4–7 the addition skills needed for success with mathematics. The app builds addition to 20 skills using 6 highly interactive games that make learning and practising addition enjoyable for all children. Each activity features its own unique setting and game play. Children have fun popping balloons, matching balls, snowboarding, counting sheep, fishing and playing the memory game. Each activity has either 2 or 3 levels to complete so that children make real progress and continue to learn. Eggy Add to 20’s bright animations and catchy music keep children engaged and motivated to learn. There are 15 Mashies to unlock as rewards– cute characters that children earn for completing activities. Eggy Add to 20 is brought to you by the makers of popular educational websites Reading Eggs and Mathseeds – a team of educators with more than 20 years’ experience in early childhood education, who believe learning should be fun, motivating and full of success. Eggy Add to 20 including the following features: -6 interactive games -2 difficulty levels for each activity - 15 Mashies characters to unlock and earn. -Choice of accents – Australia, English, United States

Screenshots

Moose Math4 screens
Eggy Add to 204 screens

Verdict

The call

The clearest difference is price: Moose Math at Free against Eggy Add to 20's $1.99. Moose Math also leads on review sentiment (76% vs 33%) and update cadence (every 2 months vs every 46 months). Eggy Add to 20's advantage is iOS requirement (9.0 vs 11.0). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Moose Math is free to download; Eggy Add to 20 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Moose Math holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Moose Math has 592 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of Moose Math's written reviews are positive against 33% of Eggy Add to 20's.

UpkeepUpdate frequency

Moose Math ships an update every 2 months, Eggy Add to 20 every 46 months. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 3 level
Moose Math versus Eggy Add to 20: the parameters behind the verdict, then further details
ParameterMoose MathEggy Add to 20
PriceFree — better$1.99
Rating4.2 (592 ratings) — better4.0 (1 ratings)
Positive reviews75.6% of reviews — better33.3% of reviews
Number of ratings592 — better1
Update frequencyEvery 2 months — betterEvery 46 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.09.0 — better
Further details — not scored
Size132 MB26 MB
Age rating4+4+
DeveloperDuck Duck Moose LLCBlake eLearning

Customer experience

Moose Math

All ratings581 ratings
Positive79.2%
Neutral5.9%
Negative15.0%
Written reviews123 reviews
Positive75.6%
Neutral8.9%
Negative15.4%

Eggy Add to 20

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

Bugs and requests

Moose Math

Reported bugs

3 issues
  • Compatibility issues with newer devices
  • Incorrect answers in fruit blending mini-game
  • App crashing when exiting levels

Requested features

4 requests
  • More levels and locations to explore
  • Ability to delete player profiles
  • Multiplayer or competitive modes
  • Expanded math concepts beyond addition/subtraction

Eggy Add to 20

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Moose Math

No in-app purchases

None

Eggy Add to 20

No in-app purchases

Questions

Is Moose Math free?
Moose Math is free to download, with no in-app purchases.
Is Eggy Add to 20 free?
Eggy Add to 20 costs $1.99, with no in-app purchases.
Which has better reviews, Moose Math or Eggy Add to 20?
Moose Math is rated higher. Moose Math averages 4.2 out of 5 from 592 ratings, while Eggy Add to 20 averages 4.0 from 1 ratings.
Do Moose Math or Eggy Add to 20 have ads?
Neither Moose Math nor Eggy Add to 20 shows ads.
Which is updated more often, Moose Math or Eggy Add to 20?
Moose Math ships an update every 2 months, and Eggy Add to 20 every 46 months. Most recently, Moose Math was updated on November 8, 2026 and Eggy Add to 20 on November 6, 2026.

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