That's strange - it's the right app. Please could you post a screenshot of it when it's connected? It could be a bug in the nordic app I guess.
You could try nRF Toolbox, yes - but nRF connect should really work...
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
That's strange - it's the right app. Please could you post a screenshot of it when it's connected? It could be a bug in the nordic app I guess.
You could try nRF Toolbox, yes - but nRF connect should really work...