Time Calibrator vs Clock Wave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Calibrator
This utility app provides precise local time and date information by connecting to an atomic clock server in Switzerland. It utilizes quantum technology to transmit this data at the speed of light directly to compatible i-Atomic watches.
- Accurate global time and date
- Connects to Swiss atomic clock server
- Quantum technology data transmission
- Direct communication to i-Atomic watches
- Light signal synchronization
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This app is designed for i-Atomic watches users Welcome to Time Calibrator! Time Calibrator has been specifically designed to deliver accurate time information to people all around the globe. The app connects automatically to the atomic clock server in Switzerland to display the exact local time and date. Through quantum technology, the information travels at the speed of light from the NTP server and is communicated directly to AtomTime i-Atomic watches via light signals.
Clock Wave
Calibrate your radio-controlled watch or clock using your iPhone or iPad. Simply tap 'Transmit' and place your device near your watch to automatically sync the accurate time.
- Calibrate radio-controlled watches/clocks
- Transmit accurate time automatically
- Supports 5 major global time signal stations
- Manual station selection for compatibility
- Automatic time signal transmission
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Clock Wave allows you calibrate radio controlled watch or clock anytime and anywhere. Just click "Transmit" button, set your watch or clock to manual receive time signal, and place it nearby your iPhone/iPad's speaker, it will be calibrated in a few minutes. Clock Wave features: - Covers 5 major longwave time signal stations all over the world. * USA: WWVB * Japan: JJY * China: BPC * UK: MSF * DE: DCF77 - Automatically transmit the accurate time. * If your radio controlled watch/clock doesn't support station BPC, select station JJY manually to use in China. * If your radio controlled watch/clock doesn't support station MSF, select station DCF77 manually to use in UK. * If your radio controlled watch/clock support only a specified timezone or station, (e.g. Using a radio controlled clock support only JJY station in Australia.), select the watch/clock timezone manually in app settings.
Screenshots
Verdict
The clearest difference is review sentiment: Clock Wave at 89% against Time Calibrator's 33%. Clock Wave also leads on rating (4.7 vs 2.7) and ratings volume (248 vs 3). Time Calibrator's advantage is price (Free vs $1.99). On ads, in-app purchases, monetization model 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
Time Calibrator is free to download; Clock Wave costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Clock Wave holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: Clock Wave has 248 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Time Calibrator's written reviews are positive against 89% of Clock Wave's.
Time Calibrator ships an update every 8 months, Clock Wave every 2 months. The most recent releases landed on September 21, 2026 and October 16, 2026 respectively.
| Parameter | Time Calibrator | Clock Wave |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.7 (3 ratings) | 4.7 (248 ratings) — better |
| Positive reviews | 33.3% of reviews | 89.0% of reviews — better |
| Number of ratings | 3 | 248 — better |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #59 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Atomtime Suisse S.A. | 震 任 |
Customer experience
Time Calibrator
Clock Wave
Bugs and requests
Time Calibrator
Not enough reviews yet to summarise bugs or requests.
Clock Wave
Reported bugs
2 issues- Incompatibility with certain iOS versions
- Incorrect time zone adjustments
Requested features
3 requests- Ability to transmit signal automatically
- Support for more watch brands/models
- Improved volume/signal strength control
In-app purchases
Time Calibrator
No in-app purchases
Clock Wave
No in-app purchases
