Comparison

一体、この台はいつ当たるのか？ vs 1/2 one

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

Head to head

Keep guessing one-half.

Free

🎮 Games

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About

一体、この台はいつ当たるのか？

Features

Read full description

・パチンコの大当たり確率を自分で設定して、何回転で当たるか運試しできるシミュレーターアプリ・1/99の甘デジから1/399の激辛まで、好きな確率で試せます。1000円あたりの回転数を入力すれば投資金額もリアルタイムで確認できます！・完全無料

About

1/2 one

Test your luck and strategy in this simple guessing game. Aim for consecutive correct answers with a 50/50 chance, and track your progress. You get one chance to redo a selection per streak.

Highlights

50/50 guessing mechanic
Consecutive correct answer tracking
Single redo per streak
Probability display
Simple L/R choices

Features

Read full description

This is a game where you challenge yourself to see how many times in a row you can guess the correct answer with a probability of 1/2. Please choose one from the two options "L" and "R". If you answer correctly, the probability of consecutive correct answers at that point will be displayed. You can redo your selection only once during a series of correct answers. *If you try again, the correct answer choices will be drawn again. We plan to continue updating and adding features in the future.

Screenshots

一体、この台はいつ当たるのか？4 screens

1/2 one4 screens

Verdict

The call

The clearest difference is update cadence: 一体、この台はいつ当たるのか？ at every 2 weeks against 1/2 one's every 6 weeks. 1/2 one's advantage is iOS requirement (14.0 vs 16.2). 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

一体、この台はいつ当たるのか？ ships an update every 2 weeks, 1/2 one every 6 weeks. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 6 level

一体、この台はいつ当たるのか？ versus 1/2 one: the parameters behind the verdict, then further details
Parameter	一体、この台はいつ当たるのか？	1/2 one
Price	Free	Free
Positive reviews	—	50.0% of reviews
Update frequency	Every 2 weeks — better	Every 6 weeks
Ads	Yes	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.2	14.0 — better
Further details — not scored
Size	19 MB	63 MB
Age rating	4+	9+
Developer	Saki Inoue	GRAVASS, INC.

In-app purchases

None

一体、この台はいつ当たるのか？

No in-app purchases

None

1/2 one

No in-app purchases

Questions

Is 一体、この台はいつ当たるのか？ free?

一体、この台はいつ当たるのか？ is free to download, with no in-app purchases.

Is 1/2 one free?

1/2 one is free to download, with no in-app purchases.

Do 一体、この台はいつ当たるのか？ or 1/2 one have ads?

Both 一体、この台はいつ当たるのか？ and 1/2 one show ads.

Which is updated more often, 一体、この台はいつ当たるのか？ or 1/2 one?

一体、この台はいつ当たるのか？ ships an update every 2 weeks, and 1/2 one every 6 weeks. Most recently, 一体、この台はいつ当たるのか？ was updated on September 25, 2026 and 1/2 one on June 1, 2026.