Ring Sizer for Japan.

Name: Ring Sizer for Japan.
Author: mapp2014

Livemapp20144 apps · 165.6K installsLifestyleFree · contains adsjp.gr.java_conf.ohishi.ringruler

This app is an app for measuring the size of the jewelry ring of Japan.

Alert me ★ Watch Open in Play ↗

Total installs: 80,551
Installs / day: 0
Rating: —★
Released: 27 Sept 2016
Last update: 4 Oct 2026
Countries: —

Installs per day

gain of the exact counter

12 Oct 2026No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play

1dAll

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

estimate · charts of 13 Oct

Most downloads likely come from 🇯🇵 Japan (~100%).

Japan100%#147 Trending · Lifestyle

Estimated from top-chart positions weighted by each country’s Google Play market size. Countries where the app is not in a chart are not shown, so small markets may be missing.

Top chart positions

as of 13 Oct

Chart	Country	Rank	Change
Trending · Lifestyle	JP	#147	—

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
Collects data Location, App activity and 2 others
Data is encrypted in transit
No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

3 in 1 group

0 Sensitive1 Notable2 Routine

OtherNotable3

Access to miscellaneous device features that don't fit other categories

Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET

Read more · all 3 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

Sorry, Only in Japan. Because using the Japanese Industrial Standards (JIS). This app is an app for measuring the size of the jewelry ring of Japan. Units of jewelry ring size of Japan is pronounced "gou". If you came to Japan, please try to use, such as in the case of considering the ring. ※ Warning: The accuracy of the scales cannot be guaranteed. Please be sure the calibration. ※:Use this application at your own risk. How to use 1. Select the size of the ring. 2. Display the ring inside diameter and inside circumference of the length in units mm and inches. 3. View the circle of the inside diameter of the ring. 4. View the inside circumference of the length of the ring in a bar graph. - If you want to see your ring size in Japan. Make sure that the inside diameter of the your ring is equal to the circular to be displayed on the screen. Or circular screen Make sure the slightly larger size. - If you want to know your ring size from the circumference of your finger. Wrap the paper around the finger. To see its length. Make sure that the length of the paper is equal to length of the bar graph to be displayed on the screen. Or the screen of the bar graph, make sure a little long length. - Calibration As scale is displayed correctly, ruler, using the size of a credit card Japanese coins(1Yen,10Yen,100Yen,500Yen) etc, please do the calibration. (Please use a ruler as much as possible.) After calibration, please tap the "calibration" button. Calibration results are saved. "Reset" button : the display of the scale to the initial state. Save is not. "Cancel" button : without saving the calibration results, and exit the calibration. Conforms to the Japanese Industrial Standards (JIS S 4700：1998　table2).

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