Comparison

byeWatch vs SpamGuard

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

Head to head
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

About

SpamGuard

Features
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SpamGuard filters SMS spam entirely on your device — no server, zero network requests, and your message content never leaves the phone. • Keyword and sender rules with normalization that catches obfuscated spellings • Smishing link detection: blocks shady links (URL shorteners, suspicious domains) combined with lure phrases — delivery, government, embassy impersonation and more, across 15 languages • On-device AI: a built-in Bayesian model gives a second-pass verdict on messages the rules can't decide, and personal training adapts to you • Live test screen: paste a message to see how it gets classified Privacy first: nothing you receive ever leaves your device. Per Apple policy the filter doesn't apply to saved contacts or iMessage. After installing, open Settings > Messages > Unknown & Junk and enable SpamGuard.

Screenshots

byeWatch4 screens
SpamGuard4 screens

Verdict

The call

The clearest difference is price: SpamGuard at Free against byeWatch's $2.99. SpamGuard also leads on update cadence (daily vs every 6 days). On ads, in-app purchases, 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

SpamGuard is free to download; byeWatch costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

byeWatch ships an update every 6 days, SpamGuard daily. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level
byeWatch versus SpamGuard: the parameters behind the verdict, then further details
ParameterbyeWatchSpamGuard
Price$2.99Free — better
Update frequencyEvery 6 daysDaily — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size31 MB3 MB
Age rating4+4+
DeveloperYOUNG SUK SOULseihee han

In-app purchases

None

byeWatch

No in-app purchases

None

SpamGuard

No in-app purchases

Questions

Is byeWatch free?
byeWatch costs $2.99, with no in-app purchases.
Is SpamGuard free?
SpamGuard is free to download, with no in-app purchases.
Do byeWatch or SpamGuard have ads?
Neither byeWatch nor SpamGuard shows ads.
Which is updated more often, byeWatch or SpamGuard?
byeWatch ships an update every 6 days, and SpamGuard daily. Most recently, byeWatch was updated on October 6, 2026 and SpamGuard on October 9, 2026.

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