Comparison

あのときのクイズ vs RoomEight

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head

Spot Anomaly. Escape the Loop.

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About

あのときのクイズ

Features

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あのときの日本や世界では何があった？「あのときのクイズ」は、過去の出来事をテーマにしたクイズアプリです。毎日の新しいクイズで飽きることなくチャレンジし、友達とスコアを競い合いましょう！歴史的な事件や社会の変化について楽しく学びましょう！ドライブやレクリエーションでも大活躍！毎日の新しいクイズで飽きることなくチャレンジし、友達とスコアを競い合いましょう！

About

RoomEight

Features

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Standard (Recommended) RoomEight is a tense observation game where a single mistake sends you back to the beginning. Start in Room 0 and memorize every detail. Move forward and decide: ・If the room is completely normal, tap NEXT. ・If you notice even one anomaly, tap BACK. Choose correctly and you advance. Choose wrong and you return to Room 0. The rules are simple, but your eyes will start to doubt what you saw. Features ・Simple two-button gameplay: NEXT / BACK ・A psychological, minimalist horror atmosphere ・Anomalies ranging from obvious to barely noticeable ・Progression that rewards attention and memory ・Collect achievements and badges as you improve Can you keep your focus, trust your judgment, and reach Room 8?

Screenshots

あのときのクイズ3 screens

RoomEight3 screens

Verdict

The call

The clearest difference is in-app purchases: あのときのクイズ at none against RoomEight's 6. あのときのクイズ also leads on update cadence (daily vs fortnightly) and iOS requirement (12.0 vs 26.1). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RoomEight sells 6 one-off in-app purchases. あのときのクイズ asks for nothing beyond the download.

UpkeepUpdate frequency

あのときのクイズ ships an update daily, RoomEight fortnightly. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 3 level

あのときのクイズ versus RoomEight: the parameters behind the verdict, then further details
Parameter	あのときのクイズ	RoomEight
Price	Free	Free
Update frequency	Daily — better	Fortnightly
Ads	Yes	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	12.0 — better	26.1
Further details — not scored
Size	57 MB	1.2 GB
Age rating	4+	12+
Developer	Larry Works	Kawamata Koichiro

In-app purchases

None

あのときのクイズ

No in-app purchases

6 purchases

RoomEight

One-time6

Unlock Stage$0.99
Secret Book$0.99
Rewind Watch (Gold)$0.99

Show 3 more

Secret Book x5$3.99
Rewind Watch (Gold) x5$3.99
Remove Ads$29.99

Questions

Is あのときのクイズ free?

あのときのクイズ is free to download, with no in-app purchases.

Is RoomEight free?

RoomEight is free to download, with in-app purchases available.

Do あのときのクイズ or RoomEight have ads?

Both あのときのクイズ and RoomEight show ads.

Which is updated more often, あのときのクイズ or RoomEight?

あのときのクイズ ships an update daily, and RoomEight fortnightly. Most recently, あのときのクイズ was updated on September 19, 2026 and RoomEight on September 8, 2026.