wwvbgps vs Wave Sync Watch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
wwvbgps
This utility app emulates a WWVB time signal using your device's speaker, allowing compatible radio-controlled clocks to sync. It prioritizes GPS time over the system clock for greater accuracy, especially when offline.
- WWVB signal emulation
- GPS time synchronization
- Avoids system clock drift
- Compatible with radio-controlled clocks
- Airplane mode optimization
Read full descriptionHide full description
Emulates WWVB longwave time broadcast using DAC harmonics to produce a very weak signal at the carrier frequency of 60KHz. This allows a radio-controlled clock (e.g. many Casio watches), to receive the signal when placed near the speaker of the iOS device. There are other apps that do this but they don't seem to use the GPS time signal, instead relying on the system clock which will drift when it doesn't have internet for a long time (e.g. at sea) because iOS does not appear to use GPS time for system clock updates. This app specifically avoids using the system clock and prefers GPS time. To force using GPS, try it in Airplane mode, with all the radios off. Tested with Casio GW M5610U.
Wave Sync Watch
This utility app generates precise audio signals to synchronize compatible radio-controlled watches, especially when tower reception is poor. It works by placing the watch speaker-to-speaker to pick up the near-field signal.
- NTP-corrected live clock
- Manual NTP sync
- Automatic protocol selection
- Support for multiple radio time protocols
- Live envelope preview
- Real-time transmitted-data inspector
Read full descriptionHide full description
Wave Sync Watch helps synchronize compatible radio-controlled watches when tower reception is weak or unavailable. The app generates a precise audio signal through your device speaker. When the watch is placed directly against the speaker, some radio-controlled watches can pick up the near-field signal through their receiver coil and decode the time pattern. This is not a long-range radio transmitter. It is a close-contact speaker-based signal tool for watches that support standard radio time protocols. Features: - NTP-corrected live clock - Manual NTP sync - Automatic protocol selection by region - Support for WWVB, DCF77, JJY40, JJY60, MSF, and BPC - Standard and experimental output modes - Live envelope preview during broadcast - Real-time transmitted-data inspector - Physical checklist before starting transmission - Light and dark mode
Screenshots
Verdict
The clearest difference is device support: Wave Sync Watch at 2 against wwvbgps's —. On price, rating, ratings volume and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for wwvbgps against 5.0 for Wave Sync Watch. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | wwvbgps | Wave Sync Watch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Ello Skelling Productions | I Gede Agastya Darma Laksana |
In-app purchases
wwvbgps
No in-app purchases
Wave Sync Watch
No in-app purchases
