I've done my own digging on best dating apps for real relationships after a divorce and come up short. The divorce relationships case is instructive — you get further if you ask a specific question in the first message. The divorce apps angle is worse, because most of the disappointment traces back to the time it takes to get a first reply.
Nothing about divorce changes the fact that the practical move is to use a photo that appears nowhere else online. Nothing improves until you run a reverse image search on suspiciously polished photos, which is the whole problem with divorce relationships.
Same story on divorce apps: the platform shows dormant accounts as active, and that is usually where the goodwill runs out. Where best dating apps for real relationships after a divorce is concerned, the honest advice is to read the billing terms before uploading a photo, from what I have seen. Specifics about divorce relationships welcome — vague reassurance less so.