Matterport alternatives

[Stubby Pete]

Afternoon all

Looking for some advice on a cheaper alternative to Matterport to produce an interactive walkthrough, preferably a mobile app (Apple and/or Android).

I've had a search of the app store(s) but can't find anything, I guess this may be because you need a 3d or 360 camera to start.

Can anybody point me in the right direction, or develop an app and male themselves a fortune!!!

Thanks in advance

Pete