WWVB Emulator is made and published by mokyuu. AppBrain is an independent app data site and isn't affiliated with mokyuu. The app name, icon, screenshots and description belong to mokyuu and are shown as published on Google Play.

About WWVB Emulator

“A radio wave for electric wave clocks (WWVB) is offered.”

mokyuu, on Google Play

Pros & Cons

Niche WWVB clock synchronization fills a unique need not widely covered by general clock apps.
Free to use with no upfront cost.
Solid rating (4.64) from 329 reviews indicating user satisfaction.
Long market presence (2767 days) suggesting maturity and ongoing support.

Lacks common clock features like alarms, multiple stations, or sleep/timer modes that some competitors offer.
Niche focus may limit audience size compared to broader clock apps.
Permissions include ad-related and network access; review privacy practices for transparency and safety.

WWVB Emulator is a productivity app developed by mokyuu.

Install Statistics

WWVB Emulator has been installed 29 thousand times. In the last 30 days, the app was installed 250 times.

User Ratings

WWVB Emulator is rated 4.63 out of 5 stars. The rating is based on 330 ratings.

App Information

WWVB Emulator is freely available from Google Play. The app size is 3.44 MB. The latest version available is 1.4.0. The last update was on August 28, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since December 2018.

Description by mokyuu (from Google Play)

Attention: There are a lot of people this application requests, so it's made. But there is no environment that a maker tests. Operation guaranteed won't be done.

Price	Free
Total installs	29 thousand
Recent installs	250
Rating	4.63 based on 330 ratings
Ranking	Not ranked
Version	1.4.0
App size	3.44 MB
Number of libraries	15
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Screenshots

Screenshots by mokyuu, from the Google Play listing

4.63 · 333 reviews · 10,000+ downloads

Official page on Google Play

Alternatives to WWVB Emulator

Google Play Rating history and histogram

Rating history

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280

Installs over time

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WWVB Emulator has been installed 29 thousand times. Over the past 30 days, it has been installed 250 times.

Changelog of WWVB Emulator

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Developer information for mokyuu

mokyuu

mokyu9@outlook.com

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Comments on WWVB Emulator for Android

★★★★★ Bruce Lopez · Jul 19, 2025

Worked perfectly the first time using phone speaker syncing a casio wave captor.

★★★★★ Tobias Hilton · Jun 7, 2024

Great APP for CASIO watches works great for those of us out of signal range

★★★★★ DerekS8625 · Jan 3, 2025

Excellent app! Does exactly what it's intended to do, and makes an excellent backup when the WWVB signal is too weak or compromised. While it may not be 100% to the precise second (it uses your phone clock which may be off by a few milliseconds) according to NIST or USNO atomic time systems, it still does the job VERY well. The key is to have the phone volume all the way up and hold the phone's speaker as close as possible to the antenna system of the time piece you wish to sync. Works well!!!

★★☆☆☆ Paul Richardson · Sep 24, 2021

App works but seems to be about 2 seconds slow when compared to other atomic sources (watch synced via Bluetooth, watch synced via multiband 6, time.is website). I'd rather just manually set it.

★★☆☆☆ Glenn Brockett · Dec 11, 2025

Didn't work with my phone (Samsung A52) and my Citizen watch or "Sky Scan" clock.

★☆☆☆☆ michael · Oct 16, 2021

Ineffective. Watch is now approximately 8 months behind. Instructions for 2 to 3 minutes. Tried for 20 minutes. Not as awful and loud as the last app I've tried. But still just as useless.

★★☆☆☆ Kirk Kohnen · Mar 2, 2022

Doesn't sync to actual time, syncs watch to the phone's time. If the time on the phone is off, the watch will be too.

Google Play Rankings for WWVB Emulator

This app is not ranked

Technologies used by WWVB Emulator

9 permissions · 15 libraries

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Frequently asked questions about WWVB Emulator

Is WWVB Emulator free?

Yes. WWVB Emulator is free on Google Play.

Is WWVB Emulator still available?

Yes. WWVB Emulator is on Google Play, and the last update we saw was on August 28, 2026.

Does WWVB Emulator contain ads?

Yes. Google Play lists WWVB Emulator as containing ads.

How large is WWVB Emulator?

WWVB Emulator is 3.44 MB.

Is WWVB Emulator suitable for children?

Google Play rates the content of WWVB Emulator as suitable for everyone.

How many times has WWVB Emulator been installed?

Google Play lists 10,000+ installs for WWVB Emulator.

How do people rate WWVB Emulator?

WWVB Emulator scores 4.63 out of 5 stars, from 333 ratings on Google Play.

Who made WWVB Emulator?

WWVB Emulator was developed by mokyuu. It is listed in the productivity category on Google Play.

What are the best alternatives to WWVB Emulator?

People looking at WWVB Emulator also look at these productivity apps: SyncTime: JJY, WWVB & MSF, radio watch sync, Atomic Clock & Watch Accuracy, bedr alarm clock radio, bedr Pro alarm clock radio.

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WWVB Emulator