Ring Sizer for Japan2.6 - App Store

This app is an app for measuring the size of the jewelry ring of Japan.
(This is not an app that automatically measures ring size or finger size.)
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.
- Calibration and PPI values ​​will be reset when the model changes.
- Set the PPI value only when the model is undecided.
- When you change the PPI value, perform calibration after the change.
How to use
■Ring tab
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.
■ Rings tab
-Displays a list of circles (inner diameter of the ring) within the displayable range.

■ Bar tab
-Displays a list of bar graphs (inner circumference length of the ring) within the displayable range.

■ list
-Displays a list of ring numbers, inner diameters, and inner circumferences.
■ Settings tab
- Calibration
- PPI (pixels per inch) setting
- In-app purchase (ads not displayed)
- In-app purchase restoration
■ Calibration
Adjust the length of the ruler.
Use the correct ruler for adjustment.

"Calibration" button: Records the adjusted state and reflects the calibration result on the ruler.
"Reset" button: Returns the adjustment status to the specified value. It will not be recorded.
"Initialize" button: Returns the adjustment status to the specified value and reflects it on the ruler.
* Caution: The calibration value will be reset when the model changes.

■ PPI (pixels per inch) setting
If the model is undecided, check the PPI value of the model before setting the PPI value.
* Please set only when the model is undecided.

"OK" button: Record the entered PPI value and reflect it on the ruler display.
"Initialize" button: Returns the PPI value to the specified value and reflects it on the ruler.
* Caution: The PPI value will be reset when the model changes.
Conforms to the Japanese Industrial Standards (JIS S 4700：1998　table2).
※:Use this application at your own risk.

Version History Update for iPhone17e ,iPad Air 11-inch(M4),iPad Air 13-inch(M4). 2.6 Mar 18 Update for iPhoneAir ,iPhone17 ,iPhone 17 Pro ,iPhone 17 Pro Max. 2.5 10/16/2025 Update for iPhone 16e , iPad(10.9-inch)(A16) , iPad Air 11-inch (M3) , iPad Air 13-inch (M3) . 2.4 03/11/2025 Update for iPhone 16 , iPhone 16 Plus , iPhone 16 Pro , iPhone 16 Pro Max , iPad Pro(12.9-inch)(6rd generation) , iPad Air4(10.9-inch)(M2) , iPad Air4(12.9-inch)(M2) , iPad Pro(11-inch)(M4) , iPad Pro(13-inch)(M4) . 2.3 09/20/2024 Ad skd update. 2.2.2 11/26/2023 Change ad settings. 2.2.1 09/28/2023 Update for iPhone 15 , iPhone 15 Plus , iPhone 15 Pro , iPhone 15 Pro Max. 2.2 09/27/2023 Update for iPhone 14 , iPhone 14 Plus , iPhone 14 Pro , iPhone 14 Pro Max. 2.1 10/03/2022 In-App Purchase activation 2.0.1 04/06/2022 Add diameter list,circumference list,japan ring size list,calibration and In-App Purchase(Hide ads). 2.0 04/03/2022 Update for the iPad Air (10.9-inch) (5th generation) , iPhone SE (3rd generation). 1.17 03/20/2022 Update for the iPad Pro (11-inch) (3rd generation) , iPad Pro (12.9-inch) (5th generation) , iPad mini (6th generation), iPhone 13 minii , iPhone 13 , iPhone 13 Pro,iPhone 13 Pro Max. 1.16 10/02/2021 iPad Air(4rd generation) , iPad (8rd generation),iPhone 12 minii , iPhone 12 , iPhone 12 Pro iPhone 12 Pro Max.に対応しました。 1.15 11/15/2020 Update for the iPad Pro(11 inch)(2rd generation) , iPad Pro(12.9inch)(4rd generation),iPhone SE(2rd generation). 1.14 04/26/2020 Update for the iPad(7th generation).
Support for dark mode. 1.13 10/02/2019 Update for the iPhone 11,iPhone 11 Pro,iPhone 11 Pro Max. 1.12 09/25/2019 Update for the iPad Air(3rd generation),iPad mini(5th generation).
The color indicating the inside diameter and the inside circumference has been changed. 1.11 06/11/2019 Update for the iPhone XR,iPad Pro(11 inch),iPad Pro(12.9 inch)(3rd generation). 1.10 11/08/2018 Update for the iPhone XS,iPhone XS Max. 1.9 09/23/2018 Update for the iPad (6th generation). 1.8 04/09/2018 Update for the iPhoneX. 1.7 11/03/2017 Update for the iPhone 8 and iPhone 8 Plus. 1.6 09/21/2017 Update for the iPad Pro(10.5 inch). 1.5 06/22/2017 Update for the iPad (5th generation). 1.4 03/23/2017 Update for the iPhone 7 and iPhone 7 Plus 1.3 09/18/2016