Use APKPure App
Get UMMA - the ub0r map marker app old version APK for Android
Remember places, even Google doesn't know!
UMMA is a very simple app to remember places on Google Maps.
You can mark anything you like.
Add comments and even photos to it.
Searching your marks is very quick and easy.
Share your marks with anybody via NFC, barcodes, hangouts, whatsapp or anything else.
Import or export your marks with standard KML format.