簡単タイマー tomTimer vs Bathyal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
簡単タイマー tomTimer
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tomTimerは、残り時間を視覚的に把握するためのドット式タイマーです。 画面に並んだ多数のドットが、時間の経過に合わせて上から順にグレーへ変化します。数字だけではなく、色の変化によって残り時間を直感的に確認できます。 見せ方は、ドット色、減り方、形を組み合わせて32通り。円ドットでは1,188個、六角形では1,122個のドットを表示し、好みに合わせたタイマー画面を選べます。 操作はシンプルです。画面を上下にドラッグして時間を選び、指を離すとカウントダウンが始まります。カウント中は画面の自動ロックを防ぎ、終了時には音と振動で知らせます。 主な機能: ・上下ドラッグによる時間選択 ・ドットの色変化による残り時間表示 ・32通りの見せ方 ・円ドット1,188個、六角形1,122個の表示 ・ドット色の変更 ・通常表示/モザイク表示の切り替え ・円形/六角形ドットの切り替え ・タイムアップ音と振動 ・初回起動時の使い方説明 ・ロック中やバックグラウンド中の通知対応 勉強、作業、運動、休憩、講義や発表の時間管理など、短時間から長めの集中時間まで幅広く使えます。
Bathyal
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Bathyal is a clepsydra — an ancient water clock — rebuilt for the deep sea. In the bathyal zone there is no day or night. No sunrise, no shadow, nothing to set a clock by. The only light is made by living things. Bathyal is the instrument that keeps time down there: a face of glowing concentric channels where every drop is a second, and time is material. Watch it work: • Each second forms as a drop at the heartbeat and joins the ring • A full ring of seconds distills into one minute — and pours, visibly, down into the next channel • Minutes pour into hours, hours into the day's two halves, days into months — at midnight the whole cascade runs at once • Once a year, the last drop of December sinks past the digits into the abyss, unmeasured Make it yours: • Solid bands or beaded drops, sweeping or pulsing motion • 24-hour or 12-hour time — 12-hour splits the hours at the meridian into a morning ring and an afternoon ring • Calendar rings for the month and year, or a Monday-first week ring whose weeks are spent, not kept • Run the midnight cascade demo any time from the settings On your wrist: • A full-screen water clock for Apple Watch — seconds, minutes, and hours in the same adjacent channels • Add Bathyal as a complication; the live rings sit on any face and rewrite themselves as the day moves. No two times look the same — that is the instrument, not a hand on a circle • Hold the Watch face for settings. Pulse or sweep, 12- or 24-hour time, and an optional Monday-first weekday ring. Hours, motion, and the week calendar also travel from the gear on iPhone On the Lock Screen: • Add Bathyal as a Lock Screen widget — live rings, a different pattern for every minute, the same figure as the Watch complication • Hours, motion, and the weekday ring follow from the gear Quiet by design: • Completely free, no accounts, no ads, no tracking — it never connects to anything • Works fully offline • Keeps the screen awake on a desk or bedside table If the instrument keeps good time for you, you can send a drop — a small tip — and the face answers with the benefactor tinctures: other colors of bioluminescence, and a single grain of sand set on the seabed of the dial. Drops become months.
Screenshots
Verdict
The clearest difference is in-app purchases: 簡単タイマー tomTimer at none against Bathyal's 3. Bathyal's advantage is device support (4 vs 2). On price, update cadence, ads 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
Both are free to download. Bathyal sells 3 one-off in-app purchases. 簡単タイマー tomTimer asks for nothing beyond the download.
簡単タイマー tomTimer ships an update fortnightly, Bathyal every 10 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | 簡単タイマー tomTimer | Bathyal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Taro Tomura | Stephen Zinn |
In-app purchases
簡単タイマー tomTimer
No in-app purchases
Bathyal
- Tip Small$1.99
- Drop: The Benefactor's Drop$2.99
- Large: A Current$9.99









