Running (or triggering) an HTTPbot on my iphone from the bangle.js 2

Hi,

Are we in a situation where at this time the bangle.js can only receive data and can never send anything back to the iphone?

By default, yes. However you could enable 'BLE HID' support in settings of your Bangle and then the bangle can send keypresses - which might be enough to trigger what you want?

If Blynk will actually work in the background on iPhone then that should be compatible though. As I understand it supports Bluetooth LE devices via sending characters over Nordic UART, which works great on Espruino/Bangle.js

If that is so, are there any future plans to have a bangle.js app written for IOS that will allow the bangle to trigger something on the iphone?

Afraid not - You can do this on Android because we can leverage the Gadgetbridge app, but I just don't have the time right now to spend on an app for iOS. Some others did say they would look at this in the past, but I don't believe anything materialised.