Comparison

Biological clock vs 毎日脳トレ！NUMBER

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

Head to head

Biological clock

Is your body clock accurate?

About

Biological clock

Features

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Stop your body clock ... Stop the stopwatch exactly at the target time! ▼ What kind of app is a biological clock anywhere? It is an app that trains your body clock while having fun! Please compete with your family and friends! ▼ Let's aim for perfection! If you stop it exactly, it will be displayed as PERFECT! Please aim for PERFECT! ▼ You can select the time You can change the challenge time to 5 seconds, 10 seconds, and 30 seconds. The longer you spend, the more you can't stop without having an accurate body clock. By all means, aim for perfection at all times!

About

毎日脳トレ！NUMBER

Test your brain age with a simple puzzle game. Find the number closest to the given subject by tapping. The more you play, the more your brain is activated.

Highlights

Brain age check
Simple puzzle gameplay
Tap-based interaction
Brain activation
Number matching

Features

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◆あなたの頭は固くなっていませんか？シンプルなゲームで脳年齢をチェック！簡単操作のパズルゲームであなたの脳年齢を診断します。「この数字に一番近いのはどれ？」お題にあった数字を見つけてタップするだけ！遊べば遊ぶほど脳が活性化されます。あなたの脳は何歳ですか？？

Screenshots

Biological clock3 screens

毎日脳トレ！NUMBER3 screens

Verdict

The call

The clearest difference is update cadence: 毎日脳トレ！NUMBER at every 2 months against Biological clock's every 13 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Biological clock ships an update every 13 months, 毎日脳トレ！NUMBER every 2 months. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 7 level

Biological clock versus 毎日脳トレ！NUMBER: the parameters behind the verdict, then further details
Parameter	Biological clock	毎日脳トレ！NUMBER
Price	Free	Free
Positive reviews	—	0.0% of reviews
Update frequency	Every 13 months	Every 2 months — better
Ads	Yes	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.1	11.0 — better
Further details — not scored
Size	13 MB	96 MB
Age rating	4+	4+
Developer	HAREPPO	ZERONE

In-app purchases

None

Biological clock

No in-app purchases

None

毎日脳トレ！NUMBER

No in-app purchases

Questions

Is Biological clock free?

Biological clock is free to download, with no in-app purchases.

Is 毎日脳トレ！NUMBER free?

毎日脳トレ！NUMBER is free to download, with no in-app purchases.

Do Biological clock or 毎日脳トレ！NUMBER have ads?

Both Biological clock and 毎日脳トレ！NUMBER show ads.

Which is updated more often, Biological clock or 毎日脳トレ！NUMBER?

Biological clock ships an update every 13 months, and 毎日脳トレ！NUMBER every 2 months. Most recently, Biological clock was updated on October 8, 2026 and 毎日脳トレ！NUMBER on October 16, 2026.