Basic Math vs Even or odd Mental calculation
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Basic Math
This engaging math game app helps children aged 4-16 improve their arithmetic and times table skills. It adapts to each child's age and learning level, offering a blend of fun and educational challenges designed by teachers.
- Adaptive learning levels
- Arithmetic practice
- Times table drills
- Engaging game design
- Teacher-designed curriculum
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Looking for a cool math game app to help your kids getting back into the school routine? Monster Numbers is a fun, engaging and addictive math game app designed to improve your kids math skills! Perfect for kids aged 4 to 16!!! Monster Numbers is a cool math game app that combines fun and education. On opening the app, select your kids age and the app will adapt to your kids level. Kids go over various level, some are pure fun and others will test your kids math skills. It is easy to play yet challenging. Just watch out, your kids might start loving math! Designed by teachers, the game adapts to the level of your child. Monster Numbers is the perfect combination of math learning and pure fun! Overall … A fun math game app perfect to get your kids back into learning and school homework!
Even or odd Mental calculation
Test your mental math skills by quickly determining if the result of an on-screen operation is even or odd. Earn more points for faster answers and challenge friends to see who has the quickest mind. The difficulty increases as you progress.
- Timed mental calculation challenges
- Score tracking for personal bests
- Speed-based scoring system
- Increasing difficulty levels
- Multiplayer comparison
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Solve the calculation and choose: is the answer even or odd? Par o Impar combines addition, subtraction and multiplication with short sessions and two large answer buttons. Practise at your own pace or test your speed across five modes: - Classic: answer before time runs out and try to beat your record. - Sprint 60: get as many answers right as you can in one minute. Each mistake costs three seconds. - Daily Challenge: 20 calculations each day, with one official attempt and unlimited practice afterwards. - Training: choose addition, subtraction, multiplication or a mix. Play without a timer and see an explanation after each answer. - Challenge Route: complete 30 levels involving calculations, accuracy and memory, and earn medals. A short tutorial explains the controls. Pause your game, adjust sound and vibration, and check your records. Progress is saved on this device and all game modes work offline. The game interface is in Spanish. The app contains advertising. If you previously bought ad removal on iOS, you can restore it from Settings (Ajustes).
Screenshots
Verdict
The clearest difference is ads: Basic Math at none against Even or odd Mental calculation's shown. Basic Math also leads on update cadence (monthly vs every 23 months) and iOS requirement (12.0 vs 15.0). Even or odd Mental calculation's advantage is review sentiment (100% vs 85%). On price, in-app purchases, monetization model 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
Both are free to download. Basic Math sells 1 one-off in-app purchase and Even or odd Mental calculation sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Basic Math ships an update monthly, Even or odd Mental calculation every 23 months. The most recent releases landed on November 7, 2026 and November 1, 2026 respectively.
| Parameter | Basic Math | Even or odd Mental calculation |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (348 ratings) — better | — |
| Positive reviews | 84.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 348 — better | — |
| Update frequency | Monthly — better | Every 23 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 185 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Didactoons Games SL | Iker Vazquez |
Customer experience
Basic Math
Even or odd Mental calculation
Bugs and requests
Basic Math
Reported bugs
3 issues- Cannot evolve/progress in game
- App crashes on splash screen
- In-app purchases not working
Requested features
2 requests- Resolve progression issues in specific levels
- Offer refunds for non-functional purchases
Even or odd Mental calculation
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Basic Math
- Premium Content$2.99
Even or odd Mental calculation
- Full version upgrade$0.99
Questions
Is Basic Math free?
Is Even or odd Mental calculation free?
Do Basic Math or Even or odd Mental calculation have ads?
Which is updated more often, Basic Math or Even or odd Mental calculation?
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