Murena (the company behind the /e/ mobile OS) is developing a FOSS app, maybe it will suit your needs : https://murena.com/en/murena-maps-your-questions-and-ans

Murena (the company behind the /e/ mobile OS) is developing a FOSS app, maybe it will suit your needs : https://murena.com/en/murena-maps-your-questions-and-answers/ https://murena.com/en/murena-maps-your-questions-and-answers...