Oh thanks for reviving this thread
@gudetama I'd lost it!
I had nearly finished C25K but changed phones and lost the app! I have run 5k a few times though and once you get so far in I find you don't need the app so much.
Do you use a distance tracker? Map My Run is a good one, just tells you when you've run a kilometre and in what time.
I still can't get under 30 minutes, I think my closest was 32 but started at 43! Keep at it (and try wearing a knee support?)
I have embarkd on the 30 Day Shred which is good for exercising everyday as I don't need to go out in the horrid weather and as I tell myself, it's only 20 minutes (though I am a bit achey!)