Mental arithmetic with MiCa vs Math Kobold
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Mental arithmetic with MiCa
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To the background: Actually, my daughters are very good at school, even though they're (at least in part) pretty lazy. It only hangs a little with mental arithmetic. I think in third grade you shouldn't need 3 minutes and 4 attempts to guess the result of 16 divided by 2. As I said, actually it is otherwise going very well. Unfortunately, my children do not share my view that mental arithmetic is fun, so they were not necessarily convinced to do a few exercises with me regularly in the evenings. Just for fun, I said that if they would promise to use it, I would build a mental arithmetic app for them. Contrary to my expectations, they liked this method way better and were totally amazed. No sooner said than done, the first prototype was there and was used excessively. The tears rolled when I accidentally deleted the app. That's why the fun became bitterly serious and the result was very much here. A small calculator that randomly generates mental arithmetic exercises that can and should be calculated in the head. To make it a bit more specific, you can specify a few parameters: - the number of exercises (1 - 30) - the maximum value range (1 - 100) - the operations to be calculated (+, -, x and :) What's next? - Use negative numbers - Calculate with decimal numbers - Improved algorithm for creating multiplication and division tasks. - (local) storage of the results for later comparison or evaluation I have a request for you A request to you: I am happy to provide the result of what I made as a hobby in my free time for my daughters in primary school, free of charge, without advertising and without the determination or storage of any data. Before I end up with tons of negative reviews (for example, the algorithm for the tasks is not yet so good), I would like to ask you to note that it is exactly what I just mentioned, just a hobby and I only do it in my spare time. Of course I try my best to improve and update the app as much as possible. If you have any questions, suggestions, criticism, improvements or anything else, please send me an email, I will try to incorporate them in future updates.
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.
- 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
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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
Verdict
The clearest difference is price: Mental arithmetic with MiCa at Free against Math Kobold's $3.99. Mental arithmetic with MiCa also leads on iOS requirement (13.0 vs 16). On update cadence, 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
Mental arithmetic with MiCa is free to download; Math Kobold costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mental arithmetic with MiCa ships an update every 3 weeks, Math Kobold monthly. Both last shipped on October 25, 2026.
| Parameter | Mental arithmetic with MiCa | Math Kobold |
|---|---|---|
| Price | Free โ better | $3.99 |
| Positive reviews | โ | 83.3% of reviews |
| Update frequency | Every 3 weeks โ better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 13.0 โ better | 16 |
| Further details โ not scored | ||
| Size | 41 MB | 141 MB |
| Age rating | 4+ | 4+ |
| Developer | Sebastian Fox | Klebert Engineering |
In-app purchases
Mental arithmetic with MiCa
No in-app purchases
Math Kobold
No in-app purchases
Questions
Is Mental arithmetic with MiCa free?
Is Math Kobold free?
Do Mental arithmetic with MiCa or Math Kobold have ads?
Which is updated more often, Mental arithmetic with MiCa or Math Kobold?
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