MunzStat is free to use and free of ads. However, it’s not free for me to host the backend for the app and the munzstat.com website. You’re welcome to show your support for MunzStat using the following donation link.
This is not a donation to Clan Stats or other tools hosted at munzee.dk as I’m is not the developer of this excellent site. Munzee.dk is run by Jakob Bruun (RUJA). Donations are handled by PayPal, recipient organisation is “Lakrisoft”.