Here are some apps that might help you navigate around the metro. Anything else you feel worth adding, comment down below and I'll add it to the thread.
Komyut - a homegrown app by the founders of r/HowToGetTherePH
Moovit - can be repurposed as an alarm clock of sorts that will wake you up on your train stop
Sakay.ph - a good tool for commuting around Metro Manila