Chances are I don't know about the outdated maps yet. Please send me an e-mail and I'll look into updating the app with the latest maps. Please mention the name of the map that is outdated.
Developing and maintaining the apps takes considerable time. I intentionally avoid ads and rely on the users of my apps to pay a small amount for the apps themselves.
If you would like to support me financially, you can donate something. For a one-time donation, you can use any of the apps I have put online for that. There are apps for amounts of 1 Euro, 2 Euro, 5 Euro and 10 Euro.
If you would like to support my occupation with developing apps and other useful software on a regular basis, you can do that on Patreon. More information on that is available on my Patreon page.