First post so please be kind…
"During these unprecedented times, to help organizations navigate the COVID-19 pandemic, PTC is now offering free access Vuforia Chalk, our AR-enabled remote assistance product, for the duration of the crisis."
This is a totally free offer, there is no obligation to purchase at the end of the free period.
An Android or iOS device is required. Check device compatibility and download the apps here.
I've used this before, it's great for remote hardware support…