Bathyal vs Mirror Timer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Bathyal
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Bathyal is a clepsydra ā an ancient water clock ā 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 ā and pours, visibly, down into the next channel ⢠Minutes pour into hours, hours into the day's two halves, days into months ā 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 ā 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 ā 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 ā 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 ā 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 ā 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 ā a small tip ā 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.
Mirror Timer
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Mirror Timer is a stopwatch and clock that shows normal and mirrored views together. Place your iPhone nearby at the gym or at home and read the time directly or in a mirror. Features ⢠Large, readable stopwatch ⢠Analog and digital clock faces ⢠Normal and mirrored views shown together ⢠Vertical and horizontal reflection modes ⢠Optional screen auto-lock prevention while timing ⢠Live Activities on the Lock Screen and Dynamic Island ⢠One-time purchase to remove ads No account is required.
Screenshots
Verdict
The clearest difference is ads: Bathyal at none against Mirror Timer's shown. Bathyal also leads on device support (4 vs 2). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Bathyal sells 3 one-off in-app purchases and Mirror Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Bathyal ships an update every 10 days, Mirror Timer every 6 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.
| Parameter | Bathyal | Mirror Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 6 days ā better |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac, Apple Watch ā better | iPhone, iPad |
| Requires iOS | 16.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephen Zinn | Reckona Inc. |
In-app purchases
Bathyal
- Tip Small$1.99
- Drop: The Benefactor's Drop$2.99
- Large: A Current$9.99
Mirror Timer
- Remove Ads$2.99









