JJYEmulator 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
- 280 thousand
- Rating on Google Play
- 4.74
- 1,065 ratings
- Last updated
- August 29, 2026
JJYEmulator has 280 thousand installs. Users love it: 4.7 stars from 1,065 ratings.
Pros & Cons
- Niche, audio-based time synchronization using the phone as the reference clock
- Free to use with standard ad/analytics libraries (AdMob, Firebase) enabled
- Mature app age (4188 days) suggesting stability and long-term support
- Clear setup guidance for positioning around the clock’s antenna and using volume effectively
- Relies on an audio-based sync method rather than automatic network time synchronization
- Requires manual steps and hardware placement (headphones near the clock) for proper operation
- Lacks modern features common in competitors (e.g., digital displays, smartwatch compatibility, widgets)
Installs
Tracked by AppBrain- Last 30 days
- 2.9 thousand
- Per day
- 97
- 30-day average
- Play install range
- 100+ thousand
- Launched
- December 2014
Installs over time
JJYEmulator has been installed 280 thousand times. Over the past 30 days, it averaged 97 installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for JJYEmulator
Competitors
Similar apps and more from mokyuuAlternatives to JJYEmulator
More from mokyuu
Releases
Updates seen on Google Play- Version
- 1.7.0
- Launched
- December 2014
User feedback
Ratings and reviews on Google PlayGoogle Play Rating history and histogram
Comments on JJYEmulator for Android
Technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- 4
- App size
- 2.73 MB
- Needs Android
- 2.3+
- Content rating
- Everyone
Technologies used by JJYEmulator
About the app and developer
About JJYEmulator
JJYEmulator is a tools app developed by mokyuu.
How many times has JJYEmulator been installed?
JJYEmulator has been installed 280 thousand times. In the last 30 days, the app was installed 2.9 thousand times.
What is the rating of JJYEmulator?
JJYEmulator is rated 4.74 out of 5 stars, based on 1.1 thousand ratings.
Is JJYEmulator free?
JJYEmulator is free. The app size is 2.73 MB. The latest version available is 1.7.0. The last update was on August 29, 2026.
What are the requirements for JJYEmulator?
JJYEmulator requires Android 2.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since December 2014.
App Performance Report
Get a detailed PDF report for JJYEmulator with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for mokyuu
Frequently asked questions about JJYEmulator
Is JJYEmulator free?
Yes. JJYEmulator is free on Google Play.
Is JJYEmulator still available?
Yes. JJYEmulator is on Google Play, and the last update we saw was on August 29, 2026.
Does JJYEmulator contain ads?
Yes. Google Play lists JJYEmulator as containing ads.
What Android version does JJYEmulator require?
JJYEmulator runs on Android 2.3 and higher.
How large is JJYEmulator?
JJYEmulator is 2.73 MB.
Is JJYEmulator suitable for children?
Google Play rates the content of JJYEmulator as suitable for everyone.
How many times has JJYEmulator been installed?
Google Play lists 100,000+ installs for JJYEmulator.
How do people rate JJYEmulator?
JJYEmulator scores 4.74 out of 5 stars, from 1,065 ratings on Google Play.
Who made JJYEmulator?
JJYEmulator was developed by mokyuu. It is listed in the tools category on Google Play.
What are the best alternatives to JJYEmulator?
People looking at JJYEmulator also look at these tools apps: SyncTime: JJY, WWVB & MSF, radio watch sync, Huge Digital Clock Widget, UTC Clock, Momentix: Huge Digital Clock.
Store listing
By mokyuu, from Google Play“The application to which the time of the electric wave clock is adjusted.”
Description by mokyuu Written by the developer, not by AppBrain. Click to read.
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.
It outlines the steps to transmit the time sync audio beeps with headphones to the watch, which after a few minutes, results with the watch being synced as if the watch owner was actually in Japan.
This application synchronizes with the time of your smartphone. To synchronize the time accurately, it is recommended to use a time synchronization application etc. to make the time of your smartphone accurate.
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
Supports time synchronization via NTP server.