クレイジー英語クイズ vs Iknow?
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
クレイジー英語クイズ
Read full descriptionHide full description
クレイジーな例文だらけの英語クイズです！ 選択式だから英語がわからなくてもクリアできます！ イラスト付きで状況がわかりやすい！ まぁバカゲーなので英語の勉強にはほぼならないと思ってください！ SpecialThanks: ・lilybear
Iknow?
Read full descriptionHide full description
Iknow? turns general knowledge into a fast, fun, and addictive mobile experience. Learn surprising facts, answer smart questions, and improve your score in short sessions. - Learning mode with “Did you know?” cards - Quiz mode with lives and countdown timers - Flexible answer recognition (case, accents, variants, and small typos) - Coin system to keep playing after mistakes - Share your results and beat your own best score - Pro mode with full access and daily fact notifications If you enjoy learning through play, Iknow? is made for you.
Screenshots
Verdict
The clearest difference is in-app purchases: クレイジー英語クイズ at none against Iknow?'s 4. クレイジー英語クイズ also leads on update cadence (every 4 months vs every 19 months). Iknow?'s advantage is ads (none vs shown). On price, device support and iOS requirement 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. Iknow? sells 4 one-off in-app purchases. クレイジー英語クイズ asks for nothing beyond the download.
クレイジー英語クイズ ships an update every 4 months, Iknow? every 19 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.
| Parameter | クレイジー英語クイズ | Iknow? |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) — better | — |
| Positive reviews | 72.4% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 4 months — better | Every 19 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 149 MB | 45 MB |
| Age rating | 12+ | 4+ |
| Developer | HENN Inc. | Juan Ormaechea |
In-app purchases
クレイジー英語クイズ
No in-app purchases
Iknow?
- 10 coins$0.99
- 25 coins$1.99
- 60 Coins$2.99
Show 1 moreShow fewer
- Premiun Plan$3.99
Questions
Is クレイジー英語クイズ free?
Is Iknow? free?
Do クレイジー英語クイズ or Iknow? have ads?
Which is updated more often, クレイジー英語クイズ or Iknow??
Other comparisons
