A free program for Android, by Easypeek.
The Story Archive Viewer Reports app is the best way to keep track of your Instagram story viewers, even after your stories are expired. This is the most convenient and easy way to know who viewed your stories, even after they are expired. This app will also show you the number of your story viewers for each day, and you will be able to find out the total number of viewers for each day and the total number of viewers for the whole time. The best thing is that this app is completely free. It does not have any in-app purchases and does not require any personal information to function.
In order to get the most accurate data, the app will need to be running in the background. The app will also need to be connected to the internet to function.