Comparison

Memory King vs Math Vs Undead

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

Head to head
About

Memory King

This is a free memory card matching game suitable for all ages. It offers customizable gameplay with magic cards, single and multiplayer modes, and the ability to create your own card sets. Track player stats and enjoy multi-sensory learning options.

Highlights
  • Free to play
  • Up to four players
  • Magic cards for unique gameplay
  • Create custom memory cards
  • Adjustable game difficulty
  • Single and multiplayer modes
  • Player statistics tracking
Features
Read full description

★★★★★ "Wow... the best memory game in the App Store bar none and it's free! Our family has always loved playing memory cards and this is by far the best version yet. It's even more fun and addictive than the physical board game, especially given the huge number of cards. The addition of magic cards is also a huge plus! What an awesome twist to a famous classic. Highly recommended." Endorsed by tens of thousands of satisfied parents, teachers, and kids the world over. Who is this for? Memory King is the first and only memory cards game that is truly suitable for people of all ages. Memory King is a fun exercise for your mind regardless of age. We have send kids, parents, grandparents, and teachers playing the game non stop. Who knew that sharpening your mind could be this addictive?! :-) About Memory King ♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡ Memory King is by far the most amazing memory cards matching game yet: ✔ Memory King is FREE no strings attached ✔ Up to four players can play at one time ✔ Magic cards make gameplay totally unique and addictive ✔ Create your own memory cards from your photo library ✔ Fully customizable - you can adjust and customize everything imaginable Features: ♡♡♡♡♡♡♡♡♡♡♡♡♡♡ ✔ Select exactly how many pairs to include per game – 2 to 32 pairs supported ✔ Includes over 60 gorgeous memory cards (toys and animals) for FREE ✔ Can upgrade and buy additional memory cards from a collection of 800 beautifully crafted cards - upgrades only cost $0.99 for 200+ cards at a time ✔ Single player mode optimized for learning ✔ Multiplayer mode supports one to four players at a time ✔ Magic cards make this game totally unique. Special effect #1 is called "Total Recall" and if you find this card, you quickly get a glimpse of all the cards that were previously revealed. Special effect #3 is called "Crystal Ball" and for just a second you get to see all of the cards that are left in the game. While we think that magic cards make the game more fun and unpredictable, you can use this button to turn them ON or OFF. Please note that you need to have at least 8 pairs included in the game for the memory cards to appear. ✔ Tracks player stats - find out exactly how each player performed at the end of each game ✔ Customizations enable unique game modes such as "audio only." Hide the visual pictures and play memory cards only by audio to sharpen a completely separate area of your brain. Customization options: ♡♡♡♡♡♡♡♡♡♡♡♡♡♡ ✔ Create your own memory cards using your own pictures ✔ Decide exactly what effects to include in each game ✔ Can use classic (counting pairs only) or enhanced score keeping (which gives bonuses for speed and finding multiple pairs in a row correctly) ✔ Select exactly which memory cards to include in each game ✔ This app is FULLY customizable - you can record everything in your own voice! ✔ Multi-sensory learning tool - combining audio, voice, and written words ✔ Multi-language support. You can update all critical audio files so that you child can play the game regardless of their native language Heroic Support ♡♡♡♡♡♡♡♡♡♡♡♡♡♡ Heroic Support is not just what we do. It's really what makes us, well, us. It's that drive to make a difference in your life - no matter how big or small. Really, it's our way of life because we want you to be our customer for a lifetime of fun and learning. support@alligatorapps.com

About

Math Vs Undead

Engage in a thrilling math-based zombie shooter where solving arithmetic problems is your weapon. This game combines educational challenges with fun graphics to boost calculation speed and cognitive skills for all ages.

Highlights
  • Zombie shooter gameplay
  • Basic math operations (addition, subtraction, multiplication, division)
  • 30 challenging levels
  • Improves calculation speed
  • Enhances cognitive functions
  • Eye-catching graphics
Features
Read full description

Math is fun and Math Vs Undead: Math Game, one of the best math games can prove it! It combines zombie games and educational games for kids in one fun game. Kids love zombie games especially if they are shooter games, and parents love educational games for kids, so we’ve made this Math Vs Undead: Math Game application to satisfy both kids and parents. Stop the zombie tsunami – do it mathway! Your brain will love this game for math because it is on the first place fun game for free, then it can be called a zombie math game for teenagers and all in all it’s a great brain teaser. Stop lollygagging on the web but instead start playing smart games. What this game has that others don’t have? Eye-candy graphics and user friendly interface One math genius that defends himself from numerous zombies and his only weapon is his mathematics knowledge Math attack – with every correct answer you will shoot evil zombies with pointed pens, sharp triangles, rulers and dividers Basic math operations and math formulae– addition, subtraction, multiplication and division Math playground – challenge your brain in 30 levels; speed up your ability to perform calculation quickly. Mind training game that involves numbers improves mental workout, tests your IQ but also your reflexes, and enhances cognitive functions and visual memory and turns you into a real math genius Learning was never easier! Primarily this is an educational game for teens and can be seen as math for 3th, 5th graders and even can be useful as math for 8th grader. It is suitable for little kids as well, as it is also one of the games for preschool kids that can help kids later on in school. Here, kids deal with elementary math in a funny and interesting way. We know math can cause a lot of problems to both kids and parents, but this cool math game can have multiple benefits. It is a fun game for kids that offers different math drills to make kids prepare for the school with the help of these games for kids who are starting kindergarten. One the other hand, scientists say that brain needs training like muscles do, so parents set your mind into action with this game for adults and fun mind game. Everybody can enjoy this family game and both girls and boys will have fun while learning. Kids, don’t run away from math problems, because they are not as hard as they seem! All you have to do is to grow the plants of your knowledge for stopping the zombie invasion by solving math problems and enjoying fun games for teens at the same time!

Screenshots

Memory King4 screens
Math Vs Undead4 screens

Verdict

The call

Memory King and Math Vs Undead both sit at 4.4 stars, but that hides the real split: 91% of Memory King's written reviews are positive against 48% of Math Vs Undead's. Memory King also leads on ads (none vs shown) and update cadence (every 3 months vs every 6 months). On price, rating, ratings volume and in-app purchases 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

Both are free to download. Memory King sells 3 one-off in-app purchases and Math Vs Undead sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Memory King against 4.3 for Math Vs Undead. Both are backed by a comparable volume of ratings — 332 and 148 respectively. Written reviews are what separate them: 91% of Memory King's written reviews are positive against 48% of Math Vs Undead's.

UpkeepUpdate frequency

Memory King ships an update every 3 months, Math Vs Undead every 6 months. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Memory King versus Math Vs Undead: the parameters behind the verdict, then further details
ParameterMemory KingMath Vs Undead
PriceFreeFree
Rating4.4 (332 ratings) — better4.3 (148 ratings)
Positive reviews91.0% of reviews — better48.1% of reviews
Number of ratings332 — better148
Update frequencyEvery 3 months — betterEvery 6 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS4.3 — better13.0
Further details — not scored
Size39 MB133 MB
Age rating4+9+
DeveloperInnovative Mobile AppsPeaksel

Customer experience

Memory King

All ratings332 ratings
Positive85.2%
Neutral6.6%
Negative8.1%
Written reviews111 reviews
Positive91.0%
Neutral3.6%
Negative5.4%

Math Vs Undead

All ratings148 ratings
Positive81.8%
Neutral6.1%
Negative12.2%
Written reviews54 reviews
Positive48.1%
Neutral9.3%
Negative42.6%

Bugs and requests

Memory King

Reported bugs

2 issues
  • Cards not always opening when tapped
  • Scores not always accurate due to tapping issues

Requested features

3 requests
  • Add more card categories (e.g. sight words, rhyming, numbers)
  • Improve layout and card size for larger screens
  • Provide a free version with fewer features

Math Vs Undead

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Memory King

One-time3
  • Animal Cards Expansion Pack$0.99
  • First Words Expansion Pack$0.99
  • Core Concepts Expansion Pack$0.99
1 purchases

Math Vs Undead

One-time1
  • Unlock all levels$4.99

Questions

Is Memory King free?
Memory King is free to download, with in-app purchases available.
Is Math Vs Undead free?
Math Vs Undead is free to download, with in-app purchases available.
Which has better reviews, Memory King or Math Vs Undead?
Memory King is rated higher. Memory King averages 4.4 out of 5 from 332 ratings, while Math Vs Undead averages 4.3 from 148 ratings.
Do Memory King or Math Vs Undead have ads?
Math Vs Undead shows ads; Memory King does not.
Which is updated more often, Memory King or Math Vs Undead?
Memory King ships an update every 3 months, and Math Vs Undead every 6 months. Most recently, Memory King was updated on November 8, 2026 and Math Vs Undead on November 6, 2026.

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