Flag Quiz Time Attack vs Simple Concentration Game
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Flag Quiz Time Attack
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Let's try the Flag Quiz! This is a time attack (time trial) game that you can play rapidly with no ads. # Playing with 50 flags This game uses basic 50 flags that you should be able to recognize. # How to play Look at the name of countries or regions, then tap the flag. After 10 quizzes, your rank will be judged by your time. Games are generated randomly, so you can play repeatedly. # The "Game No." system Every generated game has a unique "Game No.". You can play a specific game by your specified Game No. For example, if you enter the same Game No. as your friend, you can battle in the same game together. # Gallery In the gallery, you can find the flags you answered correctly. Let's try to complete! # We also have Pro edition... In Pro editon, you can play the "All 201 flags" mode. Once you have memorized many flags, go ahead!
Simple Concentration Game
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【Simple Concentration】 This is a game to find pairs of the same number and mark among the cards that have been turned over. In this application, you can choose from the following three types of patterns for the pairs you collect. You can enjoy the game with your favorite pattern. ・Playing cards ・Flags ・Animals There are also three levels. You can play the game at the level you want to challenge yourself and record your highest score. 【Recommended for】 It is very effective for brain training of memory. I hope you find it useful for brain training when you have time! It is completely free of charge, so please enjoy playing.
Screenshots
Verdict
The clearest difference is ads: Flag Quiz Time Attack at none against Simple Concentration Game's shown. Flag Quiz Time Attack also leads on update cadence (every 4 days vs every 48 months). Simple Concentration Game's advantage is iOS requirement (13.0 vs 18.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Flag Quiz Time Attack ships an update every 4 days, Simple Concentration Game every 48 months. Both last shipped on November 7, 2026.
| Parameter | Flag Quiz Time Attack | Simple Concentration Game |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 48 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Naoya Sato | hideaki fukumura |
In-app purchases
Flag Quiz Time Attack
No in-app purchases
Simple Concentration Game
No in-app purchases
Questions
Is Flag Quiz Time Attack free?
Is Simple Concentration Game free?
Do Flag Quiz Time Attack or Simple Concentration Game have ads?
Which is updated more often, Flag Quiz Time Attack or Simple Concentration Game?
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