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 update cadence (every 4 days vs every 5 weeks). On price, ads, 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
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 every 5 weeks, Bathyal every 4 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.
| Parameter | 簡単タイマー tomTimer | Bathyal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, 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









