Wifi in OSApp, was noted in the other thread as not supported Use iOS meshtastic app to radio via WiFi - #5 by garth
Message storage. Not normally. But (some) nodes can be turned into ‘Store and Forward Server’
Store & Forward Module Settings | Meshtastic which would allow retriving messages sent while disconnected.
… at least on Android, chat history is stored in the App, not the node.
Dont see that behaviour on Android, so seems like a bug in the app. But dont use iOS to say for sure.
I can get about 6m (20ft) range on heltec V3. Have had the node up a tall tree, and can connect even from inside a window. Also from another room inside the house (about 4m direct).
Check the little coil spring antenna (bt+wifi), hasn’t been damaged. I have another heltec (wireless-tracker) that I managed to snap off the antenna, using it without a case. That only gets about 3ft range on bluetooth now (not tried wifi).
You can turn a node into a ‘managed node’. Which will lock down some settings.
Device Configuration | Meshtastic But it still not totally secure.