Comparison

AtCoder Alarm vs 推しClock

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

Head to head
About

AtCoder Alarm

This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.

Highlights
  • Solve programming problems to stop alarm
  • Random AtCoder "A" task selection
  • Ensures waking up
  • Requires AtCoder pre-registration
Features
Read full description

This App is an alarm clock that doesn't stop until solving an easy problem of AtCoder (competitive programming web site). The problem is chosen randomly from "A" tasks of past ABCs. Let's make sure to wake up! * Pre-registration with AtCoder is required.

About

推しClock

Read full description

OshiClock — 推しと一緒に、今日を乗り越える。 OshiClock(推しClock)は、推しの写真と推し色で毎日を彩る、ワークライフバランス・カウントダウンアプリ。 始業からランチ、終業までの残り時間をひと目で確認でき、次のイベントや記念日もまとめて管理。 忙しい日でも「推しと一緒なら頑張れる」そんな時間を届けます。 主な機能 ホーム画面 推しの写真を背景に設定(選択・ズーム・トリミング対応) 推し色のデジタル時計(秒単位で更新、視認性の高い白縁取り) 始業 / ランチ開始 / ランチ終了 / 終業までの残り時間を自動表示 次回イベントまでのカウントダウン 記念日からの経過日数 AdMob バナー広告(画面下部) 推し設定 背景写真の選択・クロップ 推し色テーマ(HSV カラーピッカーで自由に設定) イベント管理(タイトル+日付で追加・削除) 記念日設定(名称+日付) 通知設定 通知の一括 ON/OFF 土日祝の通知スキップ(日本の祝日に対応) ホーム画面のカウントダウン表示切替 始業 / ランチ開始 / ランチ終了 / 終業の通知時刻とメッセージを個別設定

Screenshots

AtCoder Alarm3 screens
推しClock3 screens

Verdict

The call

The clearest difference is update cadence: AtCoder Alarm at daily against 推しClock's every 2 months. 推しClock's advantage is iOS requirement (13.0 vs 15.5). 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

AtCoder Alarm ships an update daily, 推しClock every 2 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 6 level
AtCoder Alarm versus 推しClock: the parameters behind the verdict, then further details
ParameterAtCoder Alarm推しClock
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyDaily — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.513.0 — better
Further details — not scored
Size27 MB34 MB
Age rating4+4+
DeveloperKiichi ItoAKIHIRO FURUSAWA

In-app purchases

None

AtCoder Alarm

No in-app purchases

None

推しClock

No in-app purchases

Questions

Is AtCoder Alarm free?
AtCoder Alarm is free to download, with no in-app purchases.
Is 推しClock free?
推しClock is free to download, with no in-app purchases.
Do AtCoder Alarm or 推しClock have ads?
Neither AtCoder Alarm nor 推しClock shows ads.
Which is updated more often, AtCoder Alarm or 推しClock?
AtCoder Alarm ships an update daily, and 推しClock every 2 months. Most recently, AtCoder Alarm was updated on October 8, 2026 and 推しClock on October 4, 2026.

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