Most certainly, if the data that the mobile app consumes is bounded and the same data is accessed frequently. Uber for example could have benefited from a sync architecture immensely (I tried to implement one back in the day, but was too late to the party as hypergrowth blocked any attempts at switching architectures). Sync architectures are not only great from a user experience point of view, but also for developer productivity and velocity. Sync takes care of a slew of problems that makes feature development slow. I gave a talk on this at last year's Local First conf https://www.youtube.com/watch?v=VLgmjzERT08&t=4s.