TrackDay for iPhone

I tried it out at Heartland Park Topeka on a motorcycle track day. I started the lap timer and put it in my jacket pocket and the laps were about 15 seconds slower than what I was running. I compared my laptimes to my garmin virb. Maybe your not supposed to put your phone in your jacket pocket but I am not comfortable attaching my phone anywhere to my bike. Maybe a ram mount might be more accurate or maybe in a car, not sure but it was not accurate for me.

When I read the description of this app I thought it looked really promising. I then tried it at a track day for three sessions and was completely disappointed: the app did not record all the laps I did on the track! I ended up going back to using Pirelli Diablo, which has less features, but it's been very reliable. Really regret having spent money on this app and purchasing the track map I went to.

It's cheaper than a transponder and let's me know if I'm getting faster. Good app.

I rode ncbike all weekend and tried in my suit pocket, mounted on the bike and everything and the gps was very inaccurate, at one session it said top speed was 35mpg, when I reality I was hitting 155-165 down the straight. Wasted $5-6

I use it every Track day. It's a little quirky if you go off the race line or make a major correction but it paints a good picture of your progress. Well worth the $$

I'm happy with it. It worked first time out with my iPhone 4S on a ram mount attached above the front of my gas tank. I wish I could analyze the data more, but it's a great cheap way to get lap stats.

Just downloaded it haven't got to use it yet couple days going to VIR for Ducati Fun Days track day with Cornerspeed you need to add them to the track day list FYI thanks!

Needs a major update. Expensive and won't even log laps correctly.

Seems pretty accurate. May mess around with the mounting position, but satisfied so far.

Gps isn't accurate enough