Comparison

Clock vs タイムバッテリー

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

Head to head
About

Clock

This app helps you leave work on time by notifying you of the remaining time until your scheduled finish. It continues to send alerts even when running in the background and supports Apple Watch and widgets.

Highlights
  • Work finish time notifications
  • Background operation
  • Apple Watch support
  • Widget support
  • Customizable notification intervals
Features
Read full description

Clock-Out Timer keeps one number in front of you: how much of today is left. Working late usually isn't a willpower problem. It's a time-awareness problem. When the time remaining is simply there, in view, deciding to stop gets a lot easier. ■ Visible without opening it At your start time, the time left and a progress bar appear on the Lock Screen and in the Dynamic Island. There are widgets, Lock Screen widgets, Apple Watch complications and a StandBy desk clock too. You never have to open the app. ■ It changes colour as you get close Under an hour to go, it turns orange. At your end time, it says so. Past it, it turns red and counts your overtime, so you always know how far over you are. ■ End your day with one tap "Done for Today" stops today's notifications and the countdown. Marking the end is often what makes the end happen. Staying a bit longer? Extend by 15, 30 or 60 minutes. Stepping away? Start a break. All of it works from the Lock Screen. ■ Build a streak of finishing on time Days you leave on time are recorded automatically and counted as a streak, with days off skipped. It's one more reason to call it a day. ■ Notifications, at your volume Choose Off, Minimal, Standard or Custom. Beyond start and end reminders, you can set your own checkpoints through the day and a countdown before you finish. ■ Quiet on your days off Pick which weekdays you're off and the app stays silent — no notifications, no Live Activity. Finish on time a little more often.

About

タイムバッテリー

Features
Read full description

【時間を大切にしたいあなたへ】 残り時間をバッテリー化する新感覚TODOアプリ! イベントの残り時間がスマートフォンのバッテリー表示のように可視化されることで、締め切りを意識して行動できます。 バッテリーが0%になる前に、ついつい後回しにしがちなタスクを終わらせる手助けをします! 「使い方」 ◇ まず期限のあるイベントを追加しよう ◇ イベントに必要なタスクを細分化して整理しよう 「このアプリの魅力」 - シンプルなデザインかつ、他にはない魅力的なアニメーション - 複雑な設定項目がないので、簡単にすぐ追加できる - 締め切りを自分で設定することで完遂率が向上 - バッテリー表示で直感的に把握できる - イベントに対してタスクを追加するため細分化できる。そして細分化によって、タスクに取り組むハードルがグンと下がる。 - 月毎の統計情報が分かる - ダークモード対応

Screenshots

Clock4 screens
タイムバッテリー4 screens

Verdict

The call

The clearest difference is review sentiment: タイムバッテリー at 100% against Clock's 0%. タイムバッテリー also leads on update cadence (weekly vs every 4 months). Clock's advantage is ads (none vs shown). On price, in-app purchases, device support and iOS requirement 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

Clock ships an update every 4 months, タイムバッテリー weekly. Both last shipped on October 7, 2026.

Scorecard3 real differences · 7 level
Clock versus タイムバッテリー: the parameters behind the verdict, then further details
ParameterClockタイムバッテリー
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size4 MB22 MB
Age rating4+4+
DevelopericotYuki Mori

Customer experience

Clock

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

タイムバッテリー

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Clock

No in-app purchases

None

タイムバッテリー

No in-app purchases

Questions

Is Clock free?
Clock is free to download, with no in-app purchases.
Is タイムバッテリー free?
タイムバッテリー is free to download, with no in-app purchases.
Do Clock or タイムバッテリー have ads?
タイムバッテリー shows ads; Clock does not.
Which is updated more often, Clock or タイムバッテリー?
Clock ships an update every 4 months, and タイムバッテリー weekly. Most recently, Clock was updated on October 7, 2026 and タイムバッテリー on October 7, 2026.

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