HitOrGuard vs Concentration Game
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
HitOrGuard
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If its own card (left) is large, let's choose a hammer quickly. Or not large, let's choose a washbasin. - One player : Play a match against iPhone. Perfect one is rather difficult although the iPhone is not strong. The number which won is located in a line with the ranking of GameCenter. - Two players : It is pitched against each other by people and a person. Let's play with a family and a friend. It will be a score, if a hammer strikes previously or it protects with a washbasin. It fights by a game 10 times!!
Concentration Game
A classic single-player card game where you match pairs of numbers. The challenge increases with a decreasing time limit as you advance through levels. Enjoy a brain-training experience with this solo card game.
- Single-player card game
- Match numbered pairs
- Time limit decreases with level
- Brain training
- Classic card game mechanics
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It is a classic card game. For one person. Match pairs of the same numbers. The time limit decreases as the level goes up. You can obtain and collect images by clearing levels.
Screenshots
Verdict
The clearest difference is ads: HitOrGuard at none against Concentration Game's shown. HitOrGuard also leads on iOS requirement (13.0 vs 15.0). Concentration Game's advantage is update cadence (every 5 months vs every 38 months). 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.
HitOrGuard ships an update every 38 months, Concentration Game every 5 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.
| Parameter | HitOrGuard | Concentration Game |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (18 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 18 — better |
| Update frequency | Every 38 months | Every 5 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Keietsu Yasuhara | Hirokazu Uno |
In-app purchases
HitOrGuard
No in-app purchases
Concentration Game
No in-app purchases
Questions
Is HitOrGuard free?
Is Concentration Game free?
Do HitOrGuard or Concentration Game have ads?
Which is updated more often, HitOrGuard or Concentration Game?
Other comparisons
