The UI-Index app is a simple app to help us manage the sun exposure of our campers.​

For more information about this model of VBS, head to

What’s New

Version 2.2.1

Fixed a bug in the refresh routine that still indicated that the app was using yesterdays EPA data when the data had already been updated.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

gagesy ,


Works great

App Privacy

The developer, Mark Spaulding, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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