足算 vs あいつはドコだ？
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
足算
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足の数は全部で何本？ 簡単な足し算パズルで頭のたいそう！ あなたの脳年齢を診断します。 遊び方はとても簡単。 人間と動物たちの足の合計の数を選んでタップするだけ！ 遊べば遊ぶほど脳が活性化されます。
あいつはドコだ？
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あいつはどこだー！？ 超かんたんな暇つぶしゲームです！ 遊び方はとっても簡単 お題にマッチする人物をみつけてタップするだけ！ 究極の暇つぶしゲームを エンジョイプレイ！
Screenshots
Verdict
The clearest difference is update cadence: あいつはドコだ？ at every 3 weeks against 足算's every 8 months. 足算's advantage is iOS requirement (11.0 vs 14.0). On price, ads, 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.
足算 ships an update every 8 months, あいつはドコだ？ every 3 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | 足算 | あいつはドコだ？ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 141 MB | 124 MB |
| Age rating | 4+ | 17+ |
| Developer | ZERONE | FUKUROU |
In-app purchases
足算
No in-app purchases
あいつはドコだ？
No in-app purchases
