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Archived App
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
This utility measures the UV index using a physical sensor that plugs into your device's audio jack. It provides real-time readings and UV protection references without needing a battery. Simply plug in the device, open the app, and get instant UV index data.
✓Plugs into audio jack
✓Real-time UV Index measurement
✓Measurement range 0-11+
✓No battery required
✓Plug and Play setup
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What's New in J
1.4.0
March 11, 2016
This app has been updated by Apple to display the Apple Watch app icon. minor bug fixed.
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Developer apps
FAQ
What is J-UV?
J-UV is a utility application that works with a physical sensor to measure the UV index. It plugs into the audio jack of your iPhone or iPad, providing real-time UV index readings.
How do I use J-UV?
To use J-UV, plug the sensor firmly into your device's audio jack, turn the headphone volume to maximum, and open the J-UV app. The UV index reading will appear within seconds.
Does J-UV require a battery?
No, J-UV does not require a battery. It draws power directly from your iPhone or iPad through the audio jack connection.
What is the measurement range of J-UV?
J-UV can measure UV index levels ranging from 0 to 11+. This provides a comprehensive overview of UV radiation intensity.
What should I do if J-UV is not showing a reading?
If J-UV is not showing a reading, ensure the headphone volume is at maximum. Also, check privacy settings to confirm microphone access is enabled for the J-UV app and that 'Volume Limit' is turned off in your device's settings.
Is J-UV compatible with all iPhones and iPads?
J-UV is designed for iPhone, iPad, and iPod. However, devices purchased in the EU might have a volume limit that could affect J-UV's functionality. Turning off the 'EU Volume Limit' in settings may resolve this.
What is the rating of J-UV?
J-UV has a rating of 3.0 stars based on 2 user ratings.
When was J-UV last updated?
J-UV was last updated on March 11, 2016, with version 1.4.0.
