Kawasaki Sportsbike Riders Club - Australia - Online Forum

Has anyone used an iPhone to time laps?
I'm wondering if there's a good app that allows to just have the phone in your pocket before you head out for a few laps and be smart enough to give lap times and top speed achieved etc.
Not that I'd be using it around the Creek on the 18th or anything!!!

the best app so far is racechrono which runs on Symbian (nokia). Not sure about the new version of Symbian but the old phones, like the E and N models works great. Need an external GPS receiver to pair it via bluetooth and it is smart enough to count the laps, lap time, top speed, etc.

Takes a snapshot every second (dont know if that can be changed) of your location and it calculates speed that way. best of all its free.
The developer was talking about making an Android adaptation but i wouldn't expect anything for a while. Dont think he can write this app for iPhone as Apple would probably reject it and not allow it on the market. Also iphones have a shit GPS receiver so even if it did work i wouldnt want to use it. Pairing an iphone to an external GPS receiver is impossible as Apple have also decided to block anything that isnt a headset or audio device to connect via bluetooth.

short answer, yes there are lap timers out there, ive seen and used 3-4 free and paid apps and compared to racechrono they are all rubbish.

Although if you want to get very fast lap times there is an app for iphones which clocked me doing 1:31 at EC

With the Racechrono you just make sure you get an external GPS that works at 5Hz i.e. samples 5 times per second so the accuracy is right up there.

You can also download Racechrono to run on your PC so you can review the files on a screen a bit bigger than the little one on your phone. Great stuff for seeing where you are fast and where you can make up some time.

Only for use at tracks like Marulan or Wakefield though as your bike will explode into a ball of highly radioactive flame and meltdown to the earth's core if you try and use it at Eastern Creek or Phillip Island.....apparently

None of that's any help for the iPhone though obviously

Simple answer No!... the i phone apps don't work, Myself & a few other members have tried unsuccessfully to get them to work. As Wasabi said best bet is get an old nokia a receiver & download race chrono