Wireless caravan reversing camera recommendations

I tried this with a DashCam with local (10m) wifi capability that should also give access to recorded files and a Live View via a phone whilst in the vehicle.

Bought a BlackVue 590X-1CH (£200) but am having no luck connecting with their app via either of the two Android phones we have.

It even went back to UK dealer and they just said No Fault Found.

Loads of complaints about their app not working in GooglePlay.

My assessment is that they are now concentrating on their Cloud capability to do this (for fleet/taxi owners) that then requires the purchase of extra equipment and more expensive units.

My unit is now in use as a DashCam only in the front for retrospective viewing.

My van does have a rear camera fitted at the door catch level (a tailgate) but this is obscured when using a towball-mounted cycle carrier.

I have one of >these< which I link to a tablet which also runs my sat nav. I don't use it very often but it does work. I think for occasional use they are fine but if you have no rear visibility at all and need something more permanent, I think I would go for a wired system.

peedee