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Android Apps > Productivity > WWVB Emulator
WWVB Emulator icon

WWVB Emulator

by mokyuu · Productivity · Free
On Google Play since December 2018 · Data updated 2026-11-01

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.

AppBrain's verdict

EstablishedLoved by users
Total installs
29 thousand
Rating on Google Play
4.65
336 ratings
Last updated
August 28, 2026

WWVB Emulator has 29 thousand installs. Users love it: 4.7 stars from 336 ratings.

Download 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.
  • 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.

Installs

Tracked by AppBrain
Last 30 days
430
Per day
14
30-day average
Play install range
10+ thousand
Launched
December 2018

Installs over time

WWVB Emulator has been installed 29 thousand times. Over the past 30 days, it averaged 14 installs per day.

Rankings

Google Play top charts

Google Play Rankings for WWVB Emulator

This app is not ranked

Competitors

Similar apps and more from mokyuu

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Releases

Updates seen on Google Play
Version
1.4.0
Launched
December 2018
  • Aug 28, 2026UpdateVersion 1.4.0
  • Aug 7, 2026UpdateVersion 1.3.4
  • Jul 4, 2025UpdateVersion 1.3.3
  • Dec 5, 2023UpdateVersion 1.2.8
  • Nov 2, 2022UpdateVersion 1.2.7
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

280
22
5
12
8

Comments on WWVB Emulator for Android

★★★★★ 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!!!
★★★★★ Bruce Lopez · Jul 19, 2025
Worked perfectly the first time using phone speaker syncing a casio wave captor.
★★☆☆☆ 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.
★☆☆☆☆ John McHugh · Mar 17, 2023
Looks like just what I need since my La Crosse clock stopped setting itself. Downloaded to phone and installed. Asked for me to register with email and confirm with credit card number. At that point, I backed out and deleted the app. I would not mind getting ads, but giving out a credit card number when I'm not going to purchase anything seems unreasonable.
★★☆☆☆ Glenn Brockett · Dec 11, 2025
Didn't work with my phone (Samsung A52) and my Citizen watch or "Sky Scan" clock.

Technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
15
App size
3.44 MB
Content rating
Everyone

Technologies used by WWVB Emulator

9 permissions · 15 libraries
Subscribe to see full permission and library details

About the app and developer

About WWVB Emulator

WWVB Emulator is a productivity app developed by mokyuu.

Download Statistics

WWVB Emulator has been downloaded 29 thousand times. In the last 30 days, the app was downloaded 430 times.

User Ratings

WWVB Emulator is rated 4.65 out of 5 stars. The rating is based on 340 ratings.

App Information

WWVB Emulator is freely available from Google Play. The APK size is 3.44 MB. The latest APK 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 APK has been available on Google Play since December 2018.

App Performance Report

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Developer information for mokyuu

mokyuu

mokyu9@outlook.com

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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 4.65 out of 5 stars, from 336 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, Atomic Clock - Exact Time, bedr alarm clock radio.

Share WWVB Emulator

Store listing

By mokyuu, from Google Play

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

WWVB Emulator Screenshot 1 of 3
WWVB Emulator Screenshot 2 of 3
WWVB Emulator Screenshot 3 of 3
Screenshots by mokyuu, from the Google Play listing
Description by mokyuu Written by the developer, not by AppBrain. Click to read.
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.

Note
It can not correspond to the atomic clock. Please adjust the NPC time with other apps.
Correspondence in this application is not planned.
We will receive more emails requesting radio clocks from other countries, but since you can not create it without materials, please attach the clear material you need.

How to use
Place headphone speakers by the atomic radio clock's internal antenna, with the volume as high as possible before it starts to distort. Or, place the clock’s internal radio antenna as close as possible to the smartphone speaker. Again, with the volume as high as possible before it starts to distort. When time sync receive mode is active, the clock will sync within 2 to 3 minutes.

Recent changes:
Changed target SDK version
Download on Google Play
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Overview Alternatives History Reviews Rankings Technology
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