No. Undeveloped film is still light-sensitive, so opening the roll and exposing it for scanning would likely fog or destroy the images. Before any app or scanner can read it normally, the film must be chemically developed so the latent image becomes visible and the film is no longer light-sensitive.

Your best option is to send the rolls to a film lab for development, and either have the lab scan them or scan the developed negatives afterward with a proper film scanner or scanning setup. If the rolls are very old, the emulsion may be fragile and could peel or flake during processing, so a lab may handle it cautiously.

In short: don’t unroll and scan undeveloped film with a phone app; develop it first.