Harry's LapTimer Grand Prix Reviews – Page 2
4/5 rating based on 39 reviews. Read all reviews for Harry's LapTimer Grand Prix for iPhone.
Harry's LapTimer Grand Prix is paid iOS app published by Harald Schlangmann
Unparalleled functionality. Confusing interface.
Robert Mohns
There is nothing else quite as awesome as this app. GPS+video+OBD-II data+custom tracks=amazing road or track videos and detailed data for number geeks. But the interface is arcane, confusing and not entirely consistent with iPhone conventions, so it has a steep learning curve. Plan to spend some time figuring it out. But once you do, you'll be tracking your track days, autocross, and perhaps even your daily commute, and making video of your best laps with data overlays and picture-in-picture of your reference laps or 2nd camera. Fun stuff, worth the work!
Excellent HPDE Application
John in MD
Harry's lap timer is great, I use it at all of the HPDE's I attend. The graphs generated are great tools to learn where you can pick up a few seconds. The videos are excellent and allow you to show others just what you're up to on the weekends!
What an app!
jeffers7
This application is just plain amazing. Used it at Watkins Glen and it performed great. Even synced some gopro videos. The videos look so professional and give you something to share with others. Highly recommended.
Track Junkie!
CoverPhire
While there are certainly more precise equipment and software out there available to the hardcore racers, it's hard to deny Harry's work in his laptimer series. I owe both the Laptimer Pro and Laptimer trainer. For the cost of the apps, and the fact that I already had an iPhone 4 and iPad for other reasons, they are dollar for dollar, some of the best data acquisition and analyzing software a track junkie could invest in. For beginners: It allows for raw video recording followed by overlaying the data onto the edited video so that one may see the data of their lap in a fun manner. For the hobbyist: Simply record the session and sort through the laps to see how one handled each corner in terms of acceleration and cornering data. For a track junkie: Add additional external sensor for a data acquisition system that still costs hundreds to thousands less to anything else out there today. For instance, the internal GPS of the iPhone runs at about 1 Hz. Third party GPS sensors are available from $100 for a 5 Hz sensor, $150 for a 10 Hz sensor, and 20 Hz competitive sensor for around $400. The higher the hertz, the more accurate the time is, as well as the data acquisition. Again, best investment I have made towards my tracking experience.
Absolutely Superb
XxSWATxX
Was introduced to Harry's Lap Timer GP this weekend at COTA. Downloaded it to my phone at lunch, borrowed a friends' OBD-II bluetooth scanner and iPhone suction cup mount and voila! I was in business. Incredibly seemless and powerful. Worked without a hiccup. Now I have memories and a learning tool to last a lifetime. Thanks, Harry! Well done!!
Great App
WilsonSteele
Fantastic app, i've been using it at track days and racing for several years. Get an external GPS device, mount it on your dash for the next track day, and you wont believe how usefull it is...