Shh vs byeWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shh
This app helps you stay focused by alerting you when your noise levels exceed a set limit. It's designed for quiet environments like study areas, reducing stress about making noise. Receive discreet alerts even when the screen is locked or the app is in the background.
- Noise level alerts
- Background operation
- Lock screen alerts
- Focus enhancement
- Stress reduction
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When You Worry About Your Noise, Shh-! A noise alert app that helps you stay focused. [ No More Noise Worries With Earphones, Calls, or Work ] An app made for quiet places like study areas, helping you feel less stressed about noise. Get alerts about your sound and stay focused without worrying about what others think! ■ Simple Smart Alerts When your noise goes over the set limit, the app quietly alerts you without breaking your focus. It works on the lock screen and in the background, so you’ll only get alerts when needed. ▶ Who Should Use Shh-!? People unsure about using earphones in study cafes Anyone who has been told to lower their noise in libraries or quiet places Families who want less noise at home Roommates who want a quieter living space ▶ What Shh-! Users Say “It’s great because it doesn’t bother me while studying.” “I feel safe knowing it alerts me if my noise gets too loud.” “I worry less about making noise when I wear earphones now.”
byeWatch
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byeWatch — Eight instruments in a pocket watch A pocket watch that is more than a clock. byeWatch brings eight different instruments into a single pocket-watch-inspired interface. Instead of searching for buttons, interact with the watch like a real mechanical instrument. Turn the crown to move between instruments, and use the switches around the dial to control each one. ■ 8 INSTRUMENTS • Astronomical Track the Moon phase and tilt while the Sun and Moon move across the sky according to their actual altitude and hour angle for your location and date. • Chronograph A classic chronograph with 60-second, 30-minute and 12-hour subdials. Watch the mechanical movement through the window, with a moving weight that reacts when you shake the device. • World Clock Rotate the city drum to select a city and see its local time, date, weekday, UTC offset and time zone. • Stopwatch Measure time down to 1/10 second and record lap and split times. • Sunrise & Sunset See today's sunrise and sunset times and visualize the part of Earth currently illuminated by the Sun. Digital views include a 24-hour solar-altitude graph and an approximate tide curve. • Compass Points to true north rather than magnetic north. WMM 2025 coefficients are built into the app so magnetic declination can be calculated offline using your location and date. • Barometer & Altimeter Read atmospheric pressure in hPa and mmHg and monitor whether pressure is rising or falling. Devices with a barometric sensor can also display barometric altitude. • Metal Detector Uses the device's magnetometer to detect local magnetic anomalies and displays them as a relative proximity index. ■ INTERACT LIKE A WATCH Turn the crown left or right to switch instruments. Pull the crown downward to open settings. Use the 11 and 1 o'clock switches for instrument-specific controls. Use the 3 o'clock switch to reset. Swipe the dial left or right to enter digital mode. Swipe upward below the watch to reveal the information panel. Rotate the device horizontally to open the landscape information panel. ■ MAKE IT YOUR WATCH Customize the case color, dial color, hand design and index style. Choose from silver, platinum, graphite, steel, gold, champagne, brass, rose gold, copper, navy, blue steel and teal. Reorder the instruments or hide the ones you do not use. ■ ANALOG AND DIGITAL Each instrument has its own visual language. When an analog dial is not enough, switch to digital mode for detailed graphs, tables and readings. View solar-altitude graphs, pressure history, stopwatch lap records and a magnetic-anomaly scope. In landscape mode, additional information such as battery, pressure, temperature, solar path, sunrise and sunset, Moon phase and coordinates can be displayed together. ■ DESIGNED WITH OFFLINE USE IN MIND Location data is used on the device and is not transmitted outside it. WMM 2025 coefficients are built into the app, allowing magnetic declination to be calculated without an internet connection. ■ SENSOR REQUIREMENTS Compass and metal detector require a magnetometer. Barometer and altimeter require a barometric sensor. Sunrise/sunset and magnetic declination use optional location permission. If a required sensor is unavailable, the instrument can still be opened and the app displays an appropriate notice. ■ IMPORTANT NOTICE The metal detector is not a radar or professional metal-detection device. Its readings represent a relative magnetic proximity index, not a distance in meters. It must not be used for buried-object detection, safety inspections or professional detection work. byeWatch is a hobby instrument and is not intended for safety-critical navigation, aviation, surveying or other professional applications. Requires iOS 16.0 or later. Languages: 한국어 · English · 日本語 · 简体中文 · 繁體中文 · Deutsch · Français · Español · Italiano · Русский
Screenshots
Verdict
The clearest difference is price: Shh at Free against byeWatch's $2.99. On update cadence, ads, 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
Shh is free to download; byeWatch costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Shh ships an update every 5 days, byeWatch every 6 days. The most recent releases landed on September 23, 2026 and October 6, 2026 respectively.
| Parameter | Shh | byeWatch |
|---|---|---|
| Price | Free — better | $2.99 |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Jia Jang | YOUNG SUK SOUL |
In-app purchases
Shh
No in-app purchases
byeWatch
No in-app purchases









