# Clock Wave — Sync radio controlled watch. > App to calibrate radio-controlled watches and clocks via iPhone/iPad speaker. (iPhone/iPad app by 震 任.) - Source: https://appshunter.io/ios/app/clock-wave/id1073576068 (this page in markdown: same URL + `.md`) - Developer: [震 任](https://appshunter.io/developer/1073576067) - Category: Utilities, Travel - Price: $1.99 - Rating: 4.70/5 from 248 App Store ratings · 285 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 2 MB - Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan) - Released: 2016-01-22 - Data updated: 2026-09-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/clock-wave/id1073576068/reviews.md ## What is Clock Wave? 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. ## Key features - 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 ## Chart rankings - #41 in Top Paid · Utilities (US App Store) ## What do users think of Clock Wave? Overall sentiment: positive **Pros** - 🚀 Works as advertised - 👍 Easy to use - 🚀 Syncs watches quickly - 💡 Clever solution for remote areas - 👍 Reliable and consistent - 🚀 First-try success **Cons** - 🐛 Doesn't work for some watches - 🐛 Inconsistent performance - 🐛 Occasional crashes or failures **Commonly reported bugs** - Incompatibility with certain iOS versions - Incorrect time zone adjustments **Most requested features** - Ability to transmit signal automatically - Support for more watch brands/models - Improved volume/signal strength control ## Recent user reviews (10 of 285) All indexed reviews: https://appshunter.io/ios/app/clock-wave/id1073576068/reviews.md ### 5/5 — Works as advertised *2026-08-30, version 1.3.16* I was thinking twice about whether it would work for my g shock 3495 module square with a phone, it just works as stated. The clean simple UI / app is a great addition to my watch, definitely worth $2. Keeping watch on the phone or iPad over the loudest speaker (you can do hearing test to see where it is loudest), and then letting watch sit on it does the job in 3-4mins. ### 5/5 — Best 2 Bucks I Ever Spent *2026-08-06, version 1.3.16* I have three atomic timekeeper watches and one of them is just so finicky and was driving me nuts because I couldn’t get it to synchronize. I found out about this app from another user and the very first time I used it my watch synchronized. This app is absolutely worth $2. I just wish I would have known about it sooner. ### 5/5 — Awesome *2026-07-30, version 1.3.16* Awesome!! ### 5/5 — Excellent *2026-07-22, version 1.3.16* Works like a charm. Thank you. ### 5/5 — Absolutely brilliant *2026-07-01, version 1.3.16* I moved house and my watch no longer could receive a signal to update my watch I tried a few different apps but none off them worked but this one did 100% recommended it’s worth the £1.99 I paid ### 5/5 — It really WORKS!!!! This one, not the free one *2026-06-13, version 1.3.16* CLOCK WAVE is the one to get. Worth the 2 bucks. First attempt it worked perfectly with Casio 5161 moduled watch 12 o’clock positioned next to iPhone speaker. I tried the other app that was free but had a paid upgrade and I tried it a 100 different ways with iPhone speaker, Bluetooth speaker, headphones over an hour I wasted and it never worked. Get this one. It worked first try in a medium noisy public environment. I want to send them an extra $2 as a tip because this actually works without wasting any time. My thanks to the developer. ### 5/5 — The best app of this sort out there *2026-06-06, version 1.3.16* Works flawless for my Citizen Eco-Drive H800 movement. Takes exactly 3 minutes every time. I’ve tried nearly every other app available in the Apple Store to sync a radio controlled watch and all of them were waste of time for me. So glad this app exists. ### 5/5 — It works *2026-06-03, version 1.3.16* Used it on my citizen radio control model and it worked! Very simple, took about 8-10 mins. ### 5/5 — Works as Advertised *2026-05-31, version 1.3.16* I downloaded this app to sync an atomic clock that is out of range of the standard time signal due to its location in the house. I followed the simple instructions and within minutes by atomic clock was synced and displaying the correct time, down to the second. Great app! ### 5/5 — Funcional *2026-05-22* Parabéns! O app funciona mesmo. Acertei a hora de dois relógios citizen rádio controlado. ## Frequently asked questions about Clock Wave ### What does Clock Wave do? Clock Wave allows you to calibrate your radio-controlled watch or clock. It transmits accurate time signals from your iPhone or iPad to your timepiece, ensuring it's always synchronized. ### How does Clock Wave calibrate my watch? To calibrate, you tap the 'Transmit' button in the app. Then, set your watch or clock to manual receive time signal mode and place it near your iPhone/iPad's speaker. The app will then transmit the accurate time. ### What time signal stations does Clock Wave support? The app covers five major longwave time signal stations worldwide: WWVB (USA), JJY (Japan), BPC (China), MSF (UK), and DCF77 (Germany). You can manually select stations if your device has specific compatibility needs. ### Is Clock Wave free to use? Yes, Clock Wave is available for free. There are no in-app purchases or advertisements mentioned in the application data. ### What if my watch doesn't support a specific station? If your radio-controlled watch or clock doesn't support a particular station (e.g., BPC or MSF), you can manually select an alternative station like JJY or DCF77 within the app's settings. You can also manually set the timezone if your device only supports a specific one. ## Version history (last 5 releases) ### 1.3.16 — 2022-11-10 1. Bugfix ### 1.3.15 — 2021-11-29 1. Bugfix ### 1.3.14 — 2021-07-12 1. Bugfix. ### 1.3.13 — 2021-02-02 1. Bugfix. ### 1.3.12 — 2021-01-31 1. Added options for using Japan and Germany domestic clocks in other regions. ## Apps similar to Clock Wave | App | Rating | Price | Category | | --- | --- | --- | --- | | [Alarm Clock for Me - Wake Up!](https://appshunter.io/ios/app/alarm-clock-for-me-wake-up/id749124884) | 4.6 (123,690) | Free | Utilities | | [The Clocks: Alarm, World Clock](https://appshunter.io/ios/app/the-clocks-alarm-world-clock/id403684793) | 4.5 (21,028) | Free | Utilities | | [Alarm Clock - Wake up Music](https://appshunter.io/ios/app/alarm-clock-wake-up-music/id406141511) | 4.6 (35,639) | Free | Utilities | | [Alarm Clock HD](https://appshunter.io/ios/app/alarm-clock-hd/id476555713) | 4.5 (103,890) | Free | Utilities | | [My Digital Clock](https://appshunter.io/ios/app/my-digital-clock/id570608914) | 4.7 (7,511) | Free | Utilities | | [Atomic Clock (Gorgy Timing)](https://appshunter.io/ios/app/atomic-clock-gorgy-timing/id295302256) | 4.8 (4,949) | $1.99 | Utilities | ## Related topics [clock wave](https://appshunter.io/ios/topics/clock-wave) · [atomic clock signal](https://appshunter.io/ios/topics/atomic-clock-signal) · [multiband](https://appshunter.io/ios/topics/multiband) · [radio wave sync](https://appshunter.io/ios/topics/radio-wave-sync) · [atomic clock sync](https://appshunter.io/ios/topics/atomic-clock-sync) · [clocksync](https://appshunter.io/ios/topics/clocksync) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*