When viewing 35mm negatives and slides, use LightBox Extra and put the negatives and slides on top of the screen of your device to easily view them.
SkyCharts LLC is the official developer of LightBox Extra that can be found in the Photography category. The tool was downloaded and installed by over 1K users and its latest stable update was on Nov 10, 2019. This application has been rated 4.7 on Google Play.
Take into account its terms of use because there are in-app purchases and advertisements. You are able to get the installation package of LightBox Extra 1.4 free of charge and check out users' reviews on Droid Informer. The app requires Android 4.4 and higher. The download of the app is 100% secure.