Neither its based on open street maps data but this is same data btcmap.org pulls from I believe. Adv of this app is you can add reviews or locations and be eligible to earn zaps for you efforts. Adding reviews to open source version this week 👌 its really more like a Nostr events as map application as you could map any location you like not just BTC related. I added the btc locations just to have some points for people to play with but you could also tweak to add whatever open street map data you like. Chalets, viewpoints, cafes, etc. Anything mapped in OSM.