Comparison

Memory Brain Trainer (Math) vs Countries Quiz Trivia

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

Head to head
About

Memory Brain Trainer (Math)

Features
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A memory cards game with funny pictures combining short term memory and basic math capabilities: 1) Know the numbers. 2) Counting. 3) Addition. 4) Subtraction. This game is suitable for both kids and adults. An adult can practice his memory while enjoying a simple math operations. A kid can practice counting, addition and subtraction in a challenging and interesting and funny way. The application has four difficulty levels in each of its four sections so your child can grow with this application! Try our other FREE games: * Kids Puzzles: Match-1 * Kids Puzzles: Match-2 * Kids Puzzles: Match-3 * Memory: Brain Trainer * Kids Garden * Math School The memory is a pairs game and relevant for brain training. With this free matchup brain puzzle game your kids will train his/he memory. In addition, this memory cards game can be also suitable for adults. Enjoy!

About

Countries Quiz Trivia

Features
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Welcome to "Countries Quiz Trivia" - the ultimate app for testing your knowledge about countries around the world! With two exciting game modes, you can choose to take a leisurely practice test with no time limit, or challenge yourself under pressure with the timed mode. Answer questions on geography, culture, history, and more to score 75% or above and pass the test mode. Explore the diversity of our planet while having fun and becoming a true global expert! No Intrusive ads, you choose when to see sponsored content!

Screenshots

Memory Brain Trainer (Math)4 screens
Countries Quiz Trivia4 screens

Verdict

The call

The clearest difference is ads: Memory Brain Trainer (Math) at none against Countries Quiz Trivia's shown. Memory Brain Trainer (Math) also leads on iOS requirement (6.0 vs 12.0). On price, update cadence, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

Scorecard2 real differences ยท 4 level
Memory Brain Trainer (Math) versus Countries Quiz Trivia: the parameters behind the verdict, then further details
ParameterMemory Brain Trainer (Math)Countries Quiz Trivia
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 months
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS6.0 โ€” better12.0
Further details โ€” not scored
Size57 MB56 MB
Age rating4+4+
DeveloperKIDEO TECH LTDBlue Castle Studios

In-app purchases

None

Memory Brain Trainer (Math)

No in-app purchases

None

Countries Quiz Trivia

No in-app purchases

Questions

Is Memory Brain Trainer (Math) free?
Memory Brain Trainer (Math) is free to download, with no in-app purchases.
Is Countries Quiz Trivia free?
Countries Quiz Trivia is free to download, with no in-app purchases.
Do Memory Brain Trainer (Math) or Countries Quiz Trivia have ads?
Countries Quiz Trivia shows ads; Memory Brain Trainer (Math) does not.
Which is updated more often, Memory Brain Trainer (Math) or Countries Quiz Trivia?
Memory Brain Trainer (Math) ships an update every 3 months, and Countries Quiz Trivia every 3 months. Most recently, Memory Brain Trainer (Math) was updated on October 14, 2026 and Countries Quiz Trivia on October 8, 2026.

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