Comparison

XinAid vs byeWatch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

XinAid

Features
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Be prepared for any emergency — at home or abroad. XinAid puts life-saving information in your pocket. Instantly find local emergency numbers (police, ambulance, fire) for any country, follow step-by-step first aid guides, and quickly locate nearby hospitals — all in one beautifully simple app. Whether you're traveling overseas or at home with your family, XinAid helps you stay ready for the unexpected. WHAT XINAID CAN DO FOR YOU * EMERGENCY NUMBERS WORLDWIDE Access police, ambulance, and fire numbers for every country. The app auto-detects your location, or you can manually pick any country. Traveling? Many countries support 112 as a universal emergency number — we'll remind you. * INTERACTIVE FIRST AID GUIDES Never performed CPR? Not sure how to help someone choking? Our step-by-step interactive guides walk you through critical first aid procedures — including CPR, the Heimlich Maneuver, bleeding control, and more. Clear instructions, no guesswork. * SYMPTOM CHECKER Not sure what's wrong? Answer simple questions about your symptoms and get guidance on possible conditions and recommended next steps. * FIND NEARBY HOSPITALS Quickly search for hospitals, clinics, and medical facilities around you. Get directions and navigate with Apple Maps — fast, when every second counts. * EMERGENCY CONTACTS Keep your trusted contacts ready. Call them with one tap or share your live location so they can find you quickly in an emergency. * SHARE YOUR LOCATION Send your GPS coordinates and address to emergency contacts with a single tap. They'll receive a map link to find you instantly. * KNOWLEDGE BASE Browse a growing library of first aid articles covering burns, fractures, poisoning, allergic reactions, and dozens more topics. Learn at your own pace so you're ready when it matters. * BILINGUAL SUPPORT Full English and Chinese (中文) language support. Switch anytime in settings. WHY XINAID? -100% FREE — All core features are free. No paywalls, no subscriptions. -WORKS OFFLINE — Emergency numbers and first aid guides work without internet. -PRIVATE BY DESIGN — No account required. Your data stays on your device. -TRAVEL READY — Covers every country. Perfect for travelers, expats, and digital nomads. IMPORTANT NOTE XinAid is an informational tool — NOT a replacement for professional medical help. In a life-threatening emergency, always dial your local emergency number immediately. Download XinAid today. Be prepared. Stay safe. If you find XinAid helpful, consider leaving a tip in the Tip Jar to support continued development. Every bit helps keep this app free for everyone.

About

byeWatch

Features
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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

XinAid4 screens
byeWatch4 screens

Verdict

The call

The clearest difference is price: XinAid at Free against byeWatch's $2.99. byeWatch's advantage is in-app purchases (none vs 4) and update cadence (every 6 days vs every 3 weeks). On 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

CostPrice · In-app purchases · Ads · Monetization

XinAid is free to download; byeWatch costs $2.99 up front. XinAid sells 4 one-off in-app purchases. byeWatch asks for nothing beyond the download.

UpkeepUpdate frequency

XinAid ships an update every 3 weeks, byeWatch every 6 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 3 level
XinAid versus byeWatch: the parameters behind the verdict, then further details
ParameterXinAidbyeWatch
PriceFree — better$2.99
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details — not scored
Size3 MB31 MB
Age rating4+4+
Developer欣 王YOUNG SUK SOUL

In-app purchases

4 purchases

XinAid

One-time4
  • tip small$1.99
  • tip medium$5.99
  • tip large$11.99
Show 1 more
  • tip super$23.99
None

byeWatch

No in-app purchases

Questions

Is XinAid free?
XinAid is free to download, with in-app purchases available.
Is byeWatch free?
byeWatch costs $2.99, with no in-app purchases.
Do XinAid or byeWatch have ads?
Neither XinAid nor byeWatch shows ads.
Which is updated more often, XinAid or byeWatch?
XinAid ships an update every 3 weeks, and byeWatch every 6 days. Most recently, XinAid was updated on November 5, 2026 and byeWatch on November 6, 2026.

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