Harry's LapTimer Petrolhead App Reviews

The best laptiming application, great design, retina display ! The most usefull application on track ! Enjoy.

This application really rocks... and when I experienced a challenging issue due to my old device, the support delivered through the night was fantastic, efficient and to the point allowing me to use it on the next day while on the race track!!! This deserves a 6* rating!

This application is fantastic, working with a lot of accessories or alone. Congrats to Harald Schlangmann for his awsome work.

i try yesterday the new harry s timer grand prix with the new design what a disapointement during recording all features looking perfect then when i came back home only 1 video no possibility to overlay anylap at least with previous version i was able to do this perfectly why pay 25 euros for a such bad application

Using this software in a Track Day makes all the difference! You can see live your lap times and also capture nice moments using the video recorder function! Of course, the best feature is the video+data overlap! Works great!

amazing app, best service. Have an IPod touch 1st Gen. and a TomTom GPS device. Harry made the programm running on this configuration. Thanks a lot. Yesterday on the Nordschleife first testing. Some problems to find the right track automaticly , Nordschleife of Nordschleife BTG (thats special). At the end it was my fault. I think I should make some experts settings on detection. Bridge is very early (make 2 sec.). I will test in Spa in 3 weeks. For me "timer" is the best view. I need to concentrate on the track. Green color for better time would be fine. keep racing

This app is a disaster! For almost 20£ it should be perfect- instead it crashes the whole time and refuses to save video. Im furious- I bought this app for a one off track day at Spa-Francorchamps and although the app confirmed it had saved the lap each time I passed the start finish line, when I came to review the video later on, there was just a big, fat "NO" where the footage should be. Not a single bit of video from the whole day! The help file claims the video has synchronized itself to somewhere else or been deleted, neither of which I have done. I wish Id stuck with CMS Lap Timer; its better, simpler, more reliable and much more fairly priced than Harrys Lap Timer.

Thank you so much for putting so much hard work into this app, I use it every time Im at the track now and its perfect. Keep up the excellent work please keep those updates coming they are appreciated! Many thanks from Canada!

Ive been using this app for over a year now and its one of the most well supported apps I own. For anyone doing autocross or any highperformace driving days at a track this app is what you want. Ive got over 200 laps at my local track this summer and gigs of synced video. Having this app has help me improve my line through corners and pick up 3 seconds average (2.2km track) which is HUGE.

Intuitive and informative. Tried this out on my last track day and was impressed with the video and ability to overlay speed, acceleration, and position on track into a final video in a nondestructive way. Cant wait to use it to improve even more

Every updates bring fabulous new features. Everthing works flawlessly and amazingly. Great for time attack and lapping peaople and cheaper than driftbox. Kudos from canada. Only downside is we need more track from Canada In database

This latest version crashes when overlaying video... I upgraded in app to the Grand Prix version and my best lap overlaid OK but I cant overlay any others, perhaps due to the PIP?

Amazing just getting the hang of it

Buy yourself an external GPS receiver ($99) to get 5-10Hz accuracy and Harrys LapTimer is by far the best value for comparing your laps at the track. You can learn so much about where you lose/gain time on the track. Full HD video with overlays in app are amazing too!

Promises camera integration with video overlay. Purchased it for this reason only. Does not control GoPro without purchase of "Gran Prix" Add-on. Bought the Add-on. Does not control GoPro (albeit now saying it does), and does not create the video overlay with the GoPro. I just wasted fifty bucks on an application Im never going to use because it does not do what it advertises to do. Plus, "Not eligible for a refund"... Awesome! Not...

Pls add the moscow race way. Thx

Fantastic app, very accurate lap times, and great telemetry data. The UX is pretty clunky and could use a design overhall.

The best timing app or AutoX and track days, and helped me win my first race by keeping me on pace for 20 laps

To say this app is anything less awesome is insane. In my opinion this has been the best purchase I have made from the App Store. The app itself has helped me to become a better driver at autocross events as well as hpde events at the local race track. It allows you to overlay data from sensors you have plugged into your car or phone that help create videos that blows my friends and family away. I highly recommend this app to any weekend racers out there. You will not regret it.

I kid you not- as a weekend track addict (I try and do about 6-8 weekends a year) I find Harrys Lap Timer to be the best investment I have made that has made me improve my times! Being able to capture consistent data points, sector/lap times and being able to overlay video (with MultiCam support of GoPro!) allows one to see where they are doing well and where one can improve. My favorite things about the app: * support for OBDII sensors * support for external GPS * support for multi cameras (iPhone, iPad and GoPro cameras) * in-device support for overlaying multiple videos, data points from sensors on to track map * ability to set a Reference lap and compare all other laps to it Only a fellow track addict can develop such an app - and it shows how well its been written!