タイムバッテリー vs Tsumoru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
タイムバッテリー
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【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
Tsumoru
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Track the time you spend reading, studying and practicing with Tsumoru. Start a timer, save your session, and see your hours add up. A fifteen-minute session counts too. Taking a day off never resets your total. START, FINISH, SAVE Choose a category and start the timer on your iPhone. Name your categories for what matters to you: language study, piano, reading or another skill. Create as many as you need. No NFC tag or Apple Watch required. SEE YOUR WEEK AND YOUR PROGRESS • See your time by weekday in a weekly chart • Review each category's total and the last 12 months • Set an hours goal and daily or weekly time budgets • Estimate when you will reach your goal at your pace over the last 7 days MORE WAYS TO START Start and end sessions from your Apple Watch. Use the Action button, or hold your iPhone to an NFC tag on your book or desk. Tap the tag again to finish. NFC is optional and needs a tag, sold separately, plus a Shortcuts automation set up once. PAUSED TIME DOESN'T COUNT Optionally block selected apps during a session. To use one, choose to pause and unblock, then reopen that app. Paused time is excluded from your record. Return to Tsumoru to resume the same session. YOUR TIME, AT A GLANCE See today's time and your running session on the Lock Screen, and your total and category breakdown in Home Screen widgets. Tsumoru also supports Live Activities, the Dynamic Island, StandBy and Apple Watch complications. KEEP PAGES AND NOTES Photograph the page when you finish reading to capture its page number. Dictate a note to remember what you worked on. Enable these options for each category. Text recognition and speech recognition run on your device. KEEP YOUR OWN PACE No ads, no account, no streaks, no rankings and no notification reminders. Records come from the timer. You can shorten or delete a session, but you cannot add time manually or increase recorded time. Records are stored on your iPhone and in your own iCloud. Export to CSV or JSON, or choose to save completed sessions to Calendar. REQUIREMENTS • iPhone with iOS 26 or later • Watch controls need watchOS 26 or later and a connection to your iPhone • NFC needs a tag and a Shortcuts automation • App blocking needs Screen Time permission • Page capture needs camera access; dictation needs microphone and speech recognition access
Screenshots
Verdict
The clearest difference is ads: Tsumoru at none against タイムバッテリー's shown. タイムバッテリー's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
タイムバッテリー ships an update weekly, Tsumoru every 6 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | タイムバッテリー | Tsumoru |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 22 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuki Mori | Yuta Tamaru |
In-app purchases
タイムバッテリー
No in-app purchases
Tsumoru
No in-app purchases









