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It doesn’t detract from my 5 stars which both apps would get for ease of use but would give it a 6 if combined.

This official guide helps photographers calculate exposure adjustments when using ProGlass IRND filters. It features a built-in timer for long exposures and allows switching between different filter stops or ND values.
1.2
October 23, 2017
This app has been updated by Apple to display the Apple Watch app icon. You can now combine two ProGlass filters and use the app to work out the total exposure time. Select any ProGlass filter, hit the + button and add an additional 2, 3 or 4 stop ProGlass for up to 19 stops of exposure adjustment! Minor adjustments for iOS 11 and iPhone X.
MoreThe LEE Filters ProGlass IRND app is an official exposure guide designed for photographers using LEE Filters' ProGlass IRND filters. It helps calculate exposure adjustments and includes a timer for long exposures.
You dial in your metered shutter speed, and the app calculates the adjusted exposure when using any of the ProGlass IRND filters. It supports various filter stops and ND values.
Yes, the app includes a countdown timer that is especially useful for very long exposures. You can tap to start the timer after calculating your exposure.
The app allows you to switch between 2, 3, 4, 6, 10, and 15 stop filters. It also supports adjusting settings to show the corresponding ND values.
No, the LEE Filters ProGlass IRND app does not contain advertisements. It is a free application with no ads.
The LEE Filters ProGlass IRND app is compatible with iPhone, iPad, and iPod devices. It is rated for ages 4 and up.
The LEE Filters ProGlass IRND app was last updated on October 23, 2017, with version 1.2. It was initially released on June 25, 2017.
Yes, the app is designed to allow you to combine two ProGlass filters for even greater exposure flexibility, providing more precise control over your shots.