Accidentally deleted app no longer available.

No, apps are not saved in a backup. Only app data are saved.

Sorry, no, not if it is no longer in the App Store.

Screwedupspine wrote:

I tried that but keep getting an error message when I try to connect.

This gear likely isn’t something folks around here likely have any experience with.

By what is reported and posted around the ‘net, this vendor sold proprietary gear, and then imploded.

One suggestion I’ve seen is re-flashing the gear to something else less proprietary, though whether that’s feasible and which firmware varies by the gear.

You’re more likely to get help with the Home Assistant forums, but whether even they have an option available to rescue this gear from the trash?

Your path likely heads toward Home Assistant.

Forums related to Home Assistant have some Vont discussions:

• https://community.home-assistant.io/t/can-i-connect-vont-smart-bulbs/756214
• https://www.reddit.com/r/homeassistant/comments/1accea2/vont_stopped_working/