This app was mentioned in 3 comments, with an average of 3.00 upvotes
Happy you enjoyed the read! I mean this one- for Android https://play.google.com/store/apps/details?id=com.tinacinc.auroraforecast&hl=de for Iphone https://itunes.apple.com/de/app/aurora-forecast/id539875792?mt=8
They do! I use this one: https://itunes.apple.com/us/app/aurora-forecast./id539875792?mt=8
It appears to have an Android version as well: https://play.google.com/store/apps/details?id=com.tinacinc.auroraforecast&hl=en
I think the alerts are an in-app purchase though.
It appears it might be using different data. Your app looks to be more accurate, according to the online sources I check regularly (plus it has a much better UI). Here's a link to that other app: https://play.google.com/store/apps/details?id=com.tinacinc.auroraforecast&hl=en