# Radio Wave Sync — user reviews > 316 indexed App Store user reviews of Radio Wave Sync by 宁 金, rated 4.50/5 from 1,049 ratings. - Source: https://appshunter.io/ios/app/radio-wave-sync/id1484233572/reviews - App overview in markdown: https://appshunter.io/ios/app/radio-wave-sync/id1484233572.md - Rating breakdown: 5★ 860 · 4★ 57 · 3★ 22 · 2★ 16 · 1★ 94 ## What do users think of Radio Wave Sync? Overall sentiment: neutral **Pros** - 🚀 Works as intended - 👍 Easy to use - 💡 Innovative solution - 🔒 Reliable sync - ⏱️ Fast sync time **Cons** - 🐛 Inconsistent performance - 💰 Paid version required - 🔇 Audio issues - 🤖 Ads in paid version - 🔁 One-time use only **Commonly reported bugs** - No sound output - Sync failure after initial success - Incompatibility with certain watch models **Most requested features** - Time zone offset option - Compatibility with newer devices - Improved reliability and consistency ## Newest reviews (11 of 316) ### 3/5 — Worked until it didn’t *2026-08-31, version 1.0.14* I click go, it tries to sell me the upgrade purchase screen, I close it, it doesn’t start. Uninstalled and reinstalled, same thing. I got it to work twice before this but now I’m being forced to purchase if I want to still use. ### 2/5 — Even with paid version, doesn’t work *2026-07-10, version 1.0.14* Unfortunately no matter how I position the phone, or use of the “beast mode,” I cannot get a successful sync with my brand new Citizen tsuki yomi watch. I only give it two stars because it seems like some people can get it to work - but it’s junk for me. ### 4/5 — Great app! Cannot restore purchase. *2026-05-07, version 1.0.14* Really cool tool, I use it with my Casio, however I’m a little bummed I can’t turn on beast mode because I unable to restore my purchase. ### 2/5 — App stopped working iOS 26 *2026-02-11, version 1.0.14* The app now has a weird sound added to it that I don’t remember and my watch won’t update anymore with it ### 2/5 — One time use *2026-02-09, version 1.0.14* The app does work as intended. I suggest using a Bluetooth speaker to boost the signal. I got my watch to sync which was great. Sadly it is a one time deal as advertised. When I opened it back up to get another clock set weeks later the application requires the membership to do anything. Not beast mode, but the regular advertised function. ### 5/5 — Out of range assistance *2026-02-07, version 1.0.14* I live on the southern coast of the Mediterranean and this app manages to sync even during our local morning time. ### 5/5 — Works!!! *2026-02-01, version 1.0.14* App works great!! Was able to sync to an atomic wall clock, thank you!! The other alternative was trying to DIY a Wwvb signal simulator, so this was much appreciated ### 5/5 — Получилось. *2026-01-26* Программа работает, удалось синхронизировать часы Citizen Attesa. ### 4/5 — Older iPhone Needed - Works *2026-01-07, version 1.0.14* Got a new watch and due to living in Toronto, the atomic signal is very weak. I tried using this app on my iPhone 15 and had 0 luck, grabbed my old iPhone XR and was able to get it synced first try ### 5/5 — IT WORKED *2026-01-04, version 1.0.14* I think this is one of the first reviews I’ve ever left - but after a week of reception failing “No” on my Citizen watch - using this app it received the signal! Note to other citizen owners - you have to make sure the watch hands are on the correct reset position or it won’t update correctly - there’s a video out there showing how to correct that, but thanks to this app, once I did that - it is working! So happy!! Thank you to this developer!! ### 5/5 — It Works! *2025-12-03, version 1.0.14* This app actually works on my Casio PRW6900! ## Most critical reviews (10 lowest-rated) ### 1/5 — Never worked for me but other app did. *2026-06-13, version 1.0.14* Tried it every way possible. iPhone speaker, Bluetooth speaker, wired speaker, headphones every possible position. Wasted well over an hour. It never worked. Maybe this works if you pay to unlock their beast mode but their free version will not work for my watch. I tried a different paid App with initials C.W. and it worked first try with Casio 5161 moduled watch 12 o’clock position against iPhone 16 speaker. ### 1/5 — No sound *2026-05-27, version 1.0.14* It worked until the moment I paid for it. Now it doesn't work because it makes no sound. Feedback link in App Store leads nowhere. ### 1/5 — Doesn’t Work. *2026-05-09, version 1.0.14* Nothing I try works. The Casio simply will not sync. I put it in a dead silent room and full volume with the phone speaker 1mm from the watch. ERR. Always ERR. ### 1/5 — Purchased VIP, App did not work. *2026-04-28, version 1.0.14* No sound from app, no settings to attempt fix, does not work. ### 1/5 — Отзыв *2026-04-17* Ничего не работает, из динамиков нету звука. ### 1/5 — Use once then pay??? *2026-04-02, version 1.0.14* I thought this app was free. Messed around and got it to work. Following day I thought I'd try it again and post a video on how good it worked, then discovered have to pay to use it the second time... What the AF??? Needless to say I might go with the other one. At least you know you have to pay up front. I'm not a fan of bait and switch. ### 1/5 — Does not work *2026-03-17, version 1.0.14* I don’t know if the app ever worked, but what’s definite is that it doesn’t work anymore as-of 2026-03-17. Save your time and pay the $2 for Clock Wave, which does actually work. ### 1/5 — Приложение ручной костыль! *2026-02-27* Вот когда все эти подобные приложения научатся сами включаться в нужное время и делать это все автоматом, тогда да, имеет смысл их скачивать, а так это просто демо игрушка не несущая ни какой практической пользы… ### 1/5 — Never works *2025-12-10, version 1.0.14* I tried it on my GShock 5610u it never works. I have tried the iPhone and iPad versions it never works don’t waste your time with this app ### 1/5 — Did not work *2025-11-04, version 1.0.14* Tried this one first and didn’t work after many attempts. Did not make any noise at all. Tried a different one and it worked after one try. If this one fails - try Clock Wave instead. ## Most praised reviews (10 highest-rated) ### 5/5 — This App WORKS *2026-07-30, version 1.0.14* This app is super simple, *WELL* worth the money, and effectively synchronizes with my Casio, Iron Man, wave, scepter, solar watch. Pro edition is a must, as it works most effectively in BEAST mode ### 5/5 — Работает! *2026-06-06* Спасибо за приложение всё работает! ### 5/5 — It works *2026-04-28, version 1.0.14* Wasn’t working at first, but tried again with wifi off on iPhone 14 Pro and synced successfully after a couple minutes. You need to hear clicking noises from the app, if you hear nothing it won’t work. I have a G Shock 5000u and 5610u, when I don’t wear one for a week it goes in power saving mode and the time is off. Handy to sync the watch manually, I recommend the app. ### 5/5 — you fabulous *2026-04-20* thank you ### 5/5 — Sync worked for Citizen Radio Controlled watch *2026-04-15, version 1.0.14* This was amazing my watch synced with atomic time keeping with this app broadcasting the frequency. Amazing.. i appreciate for making this app. ### 5/5 — 시계 맞추기 *2026-04-11* 일본내수용 쿼츠시계 라디오전파수신 시간 맞추는데 사용. 굳 ### 5/5 — Great *2026-04-01, version 1.0.14* Fantastic ⚖️‼️ ### 5/5 — Работает отлично! *2026-03-24* С Нового 2026 года мои Casio Oceanus T2600 перестали синхронизироваться с прогой JJY Simulator, до этого почти два года проблем не было. Поставил Radio wave и все ОК с первого раза. ### 5/5 — Set 3 Different Clocks *2026-03-10, version 1.0.14* This app is absolute sorcery in the best possible way. I have three “atomic” clocks sitting around. One of them had NEVER had a successful sync, and none of them will pick up WWVB in my current south-facing apartment. I was skeptical that this app would work, but to my astonishment, it set all three of them in under five minutes, including the stubborn one that has never had a sync in probably 10 years. I instantly bought the paid version out of sheer gratitude. Amazing! ### 5/5 — PERFECT *2026-02-25, version 1.0.14* Title says it all. Place your Casio on top of your phone near the speakers, increase the volume and wait patiently for it to sync. --- *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 2026-09-09.*