Best apps for tracking how far you run and for how long

[GuyM1]

Advice wanted please

[AlMorr Ambassador Graduate]

I use Mapmyrun or walk for my running or walking, I have found it to be around 98% or more accurate, when I start a run or walk it starts immediately not like previous apps I have had which took sometimes 5 minutes to start.

[5dogs Graduate]

I use mapmyrun same as AlMorr - easy to use and provides a fair bit of information.