Actually, there is. There is mapillary (bought by Meta at some point) and KartaView (I don’t think it is that popular). Code is not free, but licence for images is permissive. My personal favorite is Panoramax - completely open source, open licence and even federated!, but it is still in early stages, but keep an eye on it, looks promising. As always, problem with these efforts is not source code, but rather data.

Belgrade, Serbia got you covered: https://www.openstreetmap.org/way/39596307 (we were once socialist country, but more and more streets are losing their original names nowadays:(

Licence is compatible, but data they have is of…questionable quality…to say at least. For example, I think building dataset is Odbl and I think it contains ML-detected buildings. These got released years ago (becase they had to release it as OdbL to mix them in their maps). Rarely who imported these buildings in OSM as there are lot pf false positives and what not. So, just because they released something under odbl/cdla doesn’t mean it is good for OSM and that it could be imported (for example speed profiles, if we ever get real gold data). Overture is more of a playground for big tech to play without OSM telling them what is good and what is not

OsmAnd works on iOS too