Great app poor performance – TMB App (Metro Bus Barcelona) Review

The app itself is great, if we speak about the GUI , however the app crash very often and don't allow to keep in the background the route you take so when you swich between apps you lose the route . As I said before great app. Ans as a suggestion I would love the app to keep track of you in the background when you ask for it, that way the app will be able to alert you when you're close to your destination.
Review by Dgonzalez360ven on TMB App (Metro Bus Barcelona).