Obtaining DAUs and MAUs can only be done by paneling, which just gives estimates. Through our methodology, we decompile iOS & Android apps, pull out the raw data, and deliver you what is factually inside these apps. Wed never want our clients to make decisions on some conjectured MAU / DAU values, but we have heard of various proxies for using download / ratings totals to estimate these, which are likely as reliable as this paneled data. Please contact your Customer Success Manager if youd like more information on these proxies.