This app has been designed by RaySpec as a valuable tool for x-ray spectroscopy measurements.

It permits a user to specify a transition energy value in keV and automatically determines and displays the elements and 'lines' closest to this value.

It also allows the user to select an element and displays the x-ray transition energies for this element.

The app also includes a database with general properties for each element.

What’s New

Version 1.3.0

This app has been updated by Apple to display the Apple Watch app icon.

Updated user interface and bug fixes.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Casdifhseucmvhs ,

Very handy!!!

I keep this app on my phone and company iPad. Very useful when arguing about X-ray overlaps.

App Privacy

The developer, Periscope Design, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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