Comparison

LCM GCD Prime Factor Math vs Math Kobold

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

Head to head
About

LCM GCD Prime Factor Math

Features
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This application is a mathematical tool that helps to find the LCM (least common multiple) and the GCD (greatest common divisor) of up to 4 numbers. Factorization : integers of up to 7 digits are allowed as input. You can decomposing numbers up to 9999999 into prime factors and find out if a number is prime or not.

About

Math Kobold

Practice mental arithmetic with a fun, step-by-step game. Solve math problems to progress through levels, defeat opponents, and earn rewards. Supports addition, subtraction, multiplication, and division with adjustable difficulty.

Highlights
  • Step-by-step mental arithmetic training
  • Addition, subtraction, multiplication, division practice
  • Adjustable number ranges and difficulty levels
  • Reward system with stars and gold chests
  • Adaptive problem generator
  • Engaging gameplay with opponents and music
Features
Read full description

Learn quick mental arithmetic step by step with Math Kobold. Fun levels, good music and various rewards create a positive atmosphere for practice and motivate to play again. Join Math Kobold on his journey through the woods and hills and hold off nasty opponents by quickly solving math problems. Before you take off, you choose which kind of problems you want to solve: addition, subtraction, multiplication or division. Then select the number range (up to 10, 20, 50, 100 or 1000) and the Kobold is ready to go. On his journey the Math Kobold meets many creatures that all have one thing in common: He can only pass if he solves the math problem they present. You choose between two possible results by tapping the side of the screen where the correct result appears. And if you ever got one wrong: The Kobold is a tough guy and has more than one life! And at the end of each level a chest of gold is waiting for you and you can advance to the next level or choose a higher speed. So do you think you can make it to the last level with lightning speed? This app has the following motivating features for children in primary school age and beyond: - Supports all basic calculations including multiplication tables - Multiple unlockable difficulty levels provide challenges for all ages and skill levels - The adaptive math problem generator will select easier calculations if you cannot solve some in a row - Random and constant repetition of tasks improves mental arithmetics and times tables skills - The Math Kobold rewards fast selection of results with his legendary 'Yeah'-Move - The more 'Yeah!' moves, the more stars you get for that level - Different gameplay settings and cool music keeps everyone coming back even in times when math is not on top of your list What was important for us when developing the Math Kobold app? 1. Training mental arithmetics and basic math skill should be fun! 2. Create a game that kids would love to play, with math problem solving as the key element to progress in the game. 3. Incorporate the feedback from children (including our own) and parents! 4. Make it challenging enough so that kids really want to work on their math skills. We are happy about any feedback and ideas that you have. Get in touch! Have fun with the Math Kobold on your way to become the fastest mental arithmetics champ on earth (or at least in your neighborhood)!

Screenshots

LCM GCD Prime Factor Math4 screens
Math Kobold4 screens

Verdict

The call

The clearest difference is update cadence: Math Kobold at monthly against LCM GCD Prime Factor Math's every 18 months. LCM GCD Prime Factor Math's advantage is price ($0.99 vs $3.99) and iOS requirement (11.0 vs 16). On ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

LCM GCD Prime Factor Math costs $0.99 and Math Kobold $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LCM GCD Prime Factor Math ships an update every 18 months, Math Kobold monthly. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

Scorecard3 real differences ยท 5 level
LCM GCD Prime Factor Math versus Math Kobold: the parameters behind the verdict, then further details
ParameterLCM GCD Prime Factor MathMath Kobold
Price$0.99 โ€” better$3.99
Positive reviewsโ€”83.3% of reviews
Update frequencyEvery 18 monthsMonthly โ€” better
AdsNoNo
In-app purchasesNoNo
Monetizationโ€”Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 โ€” better16
Further details โ€” not scored
Size5 MB141 MB
Age rating4+4+
DeveloperMaria Dolores Garcia FerreKlebert Engineering

In-app purchases

None

LCM GCD Prime Factor Math

No in-app purchases

None

Math Kobold

No in-app purchases

Questions

Is LCM GCD Prime Factor Math free?
LCM GCD Prime Factor Math costs $0.99, with no in-app purchases.
Is Math Kobold free?
Math Kobold costs $3.99, with no in-app purchases.
Do LCM GCD Prime Factor Math or Math Kobold have ads?
Neither LCM GCD Prime Factor Math nor Math Kobold shows ads.
Which is updated more often, LCM GCD Prime Factor Math or Math Kobold?
LCM GCD Prime Factor Math ships an update every 18 months, and Math Kobold monthly. Most recently, LCM GCD Prime Factor Math was updated on October 26, 2026 and Math Kobold on November 3, 2026.

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