Comparison

2択 ~Left or Right~ vs ONE HALF

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

Head to head
About

2択 ~Left or Right~

Features
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誰もが経験したことのある、決定的場面での2択。 運命が変わる2択の連続を体験できるアプリです。 =遊び方= 遊び方はとってもシンプル。 左か右かどちらかのボタンを押す。 正解なら全てのボタンを押すと7が揃い、次へとチャレンジできます。 又、現在の2択連続成功確率が出る為、ヒリつけること間違いなし!? =抽選方法= ゲーム開始時に左ファーストが正解か、右ファーストが正解かが設定されます。 例えば、正解が左ファーストに選択された場合、 左ボタンの次に右ボタンを押すと、2確となります。 逆に、正解が右ファーストに選択された時に、 左ボタンの次に右ボタンを押すと、2殺となります。 ※6択の概念はありません。 =ランキング機能実装= 連続成功記録をランキングボードにアップ、見ることができます。 貴方の連続記録をランキングとしてアップすることで、 全国の猛者達と競い、高め合いましょう! 運も実力の内!?目指せランキング上位!!

About

ONE HALF

Features
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Among the two choices displayed, only one is the correct answer. Challenge yourself to see how long you can keep choosing correctly in a row. If you pick incorrectly, you’ll have to start over — but you can retry once by watching an ad. You can view your past records as well as your success rate compared to all players under “Record so far”

Screenshots

2択 ~Left or Right~4 screens
ONE HALF4 screens

Verdict

The call

The clearest difference is update cadence: ONE HALF at every 2 days against 2択 ~Left or Right~'s weekly. 2択 ~Left or Right~'s advantage is iOS requirement (12.0 vs 17.0). 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

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

2択 ~Left or Right~ ships an update weekly, ONE HALF every 2 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 4 level
2択 ~Left or Right~ versus ONE HALF: the parameters behind the verdict, then further details
Parameter2択 ~Left or Right~ONE HALF
PriceFreeFree
Update frequencyWeeklyEvery 2 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size115 MB4 MB
Age rating4+4+
DeveloperMasaaki OkajimaITOTSUKA

In-app purchases

None

2択 ~Left or Right~

No in-app purchases

None

ONE HALF

No in-app purchases

Questions

Is 2択 ~Left or Right~ free?
2択 ~Left or Right~ is free to download, with no in-app purchases.
Is ONE HALF free?
ONE HALF is free to download, with no in-app purchases.
Do 2択 ~Left or Right~ or ONE HALF have ads?
Both 2択 ~Left or Right~ and ONE HALF show ads.
Which is updated more often, 2択 ~Left or Right~ or ONE HALF?
2択 ~Left or Right~ ships an update weekly, and ONE HALF every 2 days. Most recently, 2択 ~Left or Right~ was updated on October 13, 2026 and ONE HALF on October 16, 2026.

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