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JV Chrono is a GPS laptimer, OBD reader, video recording with overlays and analysis system for all types of events related to the motoring world or outdoor sports.

• Laptimer for loop and point-to-point tracks.
• External GPS and OBD II compatible.
• Video recording with overlays.
• GoPro HERO control.
• Steering wheel and byke lean angle measurement.

Perfect for loop or point-to-point tracks ("LAPTIMER" mode), B roads (“OBD II" mode) and acceleration measurements ("DRAG RACE" mode).

Improve your driving skills during the session. The app shows your current position within the track (very useful when the track is unknown) with the areas where you have gained/lost time or gone faster/slower than the reference lap. Modify the racing line and immediately see if you have improved or not. Improve regularity thanks to the predictive lap time.

Analyze your laps and share your data with your friends. The app includes an advanced analysis tool to improve your driving and compare different laps, including laps from your friends. The app synchronizes automatically and plays the videos recorded during the session to analyze them together with the data. Export data to different formats including Google Earth or CSV to generate video overlays.

Focus on driving and avoid looking at the device’s screen. Lets the app play voice messages with the elapsed or delta time with the reference lap. Introduce notes with any text to be played when crossed to remember braking points or the racing line to follow. Perfect for bikers with a bluetooth headset.

Get the most out of your device's sensors. Measure the steering wheel angle to analyze understeer or oversteer, or get the byke lean angle.

Record video with overlays during the session without postprocessing. The app includes in the video the current speed, acceleration, track position or vehicle data obtained by OBD. Use the "REMOTE" mode to control another device like an action camera, recording from the most impressive point.

Only app that increases safety on track. It includes a proximity alert to detect other app users that are close to you in other to notify that you will overtake or being overtaken. Avoid accidents or lost time behind slower vehicles that haven’t seen you.

Connect a Bluetooth OBD ELM327 device and record vehicle data like rpm, accelerator command or engine temps. It includes a gear shift light and sound indicator and coolant/oil temp alerts. Analyze your heel and toe with the gear ratio parameter. Data is recorded at maximun rate, regardless of GPS rate.

Command a GoPro HERO camera connected by wifi. It displays the current status and allows to control the GoPro manual or automatically. Control your GoPro with your GPS position or bluetooth commands!

• Interpolates data to obtain precise lap times.
• Running in the background. Designed to carry the device locked in your pocket. Voice messages are still played.
• Select the reference lap between the last, best or ideal lap.
• Supports internal GPS and external GPS bluetooth device.
• Configure commands from a bluetooth device (headset or car radio). Handle the app using gloves.
• Continue sessions, record data without track or change track to a finished session.
• 150+ predefined tracks included in the app from 23 countries.
• Edit track screen to create your own tracks.
• Import and export sessions and tracks to exchange them between devices.
• Help dialogs on each screen of the app and quick start guide.
• Texts in English and Spanish.
• Voice messages in English, Spanish, German, French, Italian and Portuguese.

For any question or support, please visit our website ( or send us an email to

You are allowed to use this product only within the laws of your country/region. SharewareOnSale and its staff are not responsible for any illegal activity. We did not develop this product; if you have an issue with this product, contact the developer. This product is offered "as is" without express or implied or any other type of warranty. The description of this product on this page is not a recommendation, endorsement, or review; it is a marketing description, written by the developer. The quality and performance of this product is without guarantee. Download or use at your own risk. If you don't feel comfortable with this product, then don't download it.

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