I am still waiting for iOS app (Interested in making a flutter-based third party app - documentation? - #3 by tomasbrincil)
Why not use EPS32 to server the same stuff over WiFi? It could be used without app on any WiFi and browser enabled device.
I can do all frontend (html+js) UI if there is anyone who see little bit under the hood interested in the idea and can help stick it with meshtastic 