Harry's LapTimer GrandPrix

25.1.0

Harald Schlangmann

4.17

148 reviews

5,000+
Downloads

$22.99

Harry's LapTimer is the advanced tool for car enthusiast and track day visits.

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About Harry's LapTimer GrandPrix

Harry's LapTimer GrandPrix is a sports app developed by Harald Schlangmann.

Download Statistics

Harry's LapTimer GrandPrix has been downloaded 8.8 thousand times. In the last 30 days, the app was downloaded 22 times. It is ranked in the top 100 sports apps.

User Ratings

Harry's LapTimer GrandPrix is rated 4.17 out of 5 stars. The rating is based on 150 ratings.

App Information

Harry's LapTimer GrandPrix costs $22.99 to download. The APK download size is 43.23 MB. The latest version available is 25.1.0. The last update was on June 28, 2026.

Technical Requirements

Harry's LapTimer GrandPrix requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play May 2015.

Description

Harry's LapTimer is the advanced tool for car enthusiast.

More data about Harry's LapTimer GrandPrix

Price	$22.99
Total downloads	8.8 thousand
Recent downloads	22
Rating	4.17 based on 150 ratings
Ranking	Highly ranked
Version	25.1.0
APK size	43.2 MB
Number of libraries	17
Designed for Android	5.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the Harry's LapTimer GrandPrix app

Harry's LapTimer GrandPrix compared with similar apps

Common keywords of similar apps

Laptimer Sensors Tool External Grandprix Advanced Sensor Smartphone Offers Edition Http Fixed Enthusiast Day Optimize Easy Chosen Show Friends Online Add Ii Step Functionality Visit Professional Enhanced User Check Petrolhead Cams Picture Track Support Added Device Car Data Drive Time Driving Racing Obd Information Gps Analyze Performance

Keywords missing from this app

Lap Speed Video App Race Speedometer Features Myracelab Laps Analysis Times Tracker Timer Tracks Racechrono Pro Timing Trip Recent Motorsports Vehicle Record Recording Real Odometer Drivers Share Cars Session Compare Insights Distance Carrera Devices Circuit

Google Play Rating history and histogram

100

Downloads over time

Harry's LapTimer GrandPrix has been downloaded 8.8 thousand times. Over the past 30 days, it has been downloaded 22 times.

Changelog of Harry's LapTimer GrandPrix

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Developer information for Harald Schlangmann

Harald Schlangmann

Harry@gps-laptimer.de

Website

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Comments on Harry's LapTimer GrandPrix for Android

★★★★★ Charles Kowalczyk · Nov 7, 2015

Best Lap Timer available with support second to none If you are looking for a lap timer for your track days, you can end your search here. iOS's users have had the pleasure of this wonderful lap timer for a while and now the Android version is just as good. If you have any ideas to make the app better or need help using it, there is a forum for this app and Harry himself will generally reply within 12 hours. Can't ask for better ongoing support than that!

★★★★★ Hans Caspary · May 1, 2017

If you are a track rat, this app is phenomenal! 🏎️🏎️🏎️

★★★★★ Mike Davies · Sep 1, 2017

I love this app. It takes a little bit of time to get set up, but it's well worth it if you want to do any sort of analysis. Reading other reviews on here, it's clear that people are simply not taking this time, and have not tried other massively more expensive telemetry solutions. I can hook up an external 10Hz GPS, an OBD-II Bluetooth dongle, and a GoPro for dual video recording, and it just works! Find me something else that comes close for this price (accessories included) and I'll eat my hat. I show up at the track, mount my phone, turn on my GPS, plug in my OBD-II dongle, and fire up the GoPro, and then just load a track and go! End of session or day, I review. I learn. I go faster! It's amazing, and frequently reminds me that slow is fast as I think I've done a killer lap and then learn I'm actually 1-2s off my pace. Great job Harald, thanks for the very dedicated support, and keep up the good work.

★★★★★ Nicholas Barbato · May 22, 2025

Great app for quality and easy to use racetrack data logging. Harry offers great support and app integrates well with OBD data, external gps units and video recording devices.

★★☆☆☆ Jezza G · Oct 12, 2016

Impenetrable interface I am very used to hi tech gadgets and software and getting the best out of them. I spent a lot of time reading all the haphazardly presented documents and trying it out before my first track day. Suffice to say that on a whole track day I wasted much of the time trying to get the software to talk to the Gopro hero 3+ and record. I only managed to record 2 x 15-min sessions the whole day. A complete waste of money, I wish I could get a refund. I will be buying the new Garmin virb, 1 easy on/off button.

★☆☆☆☆ Johnny Guindi · Jul 7, 2018

On my phone's built-in GPS the app almost never detects me crossing the start/finish line but works perfectly on other apps like Track Addict which is completely free. Not only that but the external camera compatibility is completely broken. Save some money and look for some other options out there that happen to be much better, reliable and also completely free.

★☆☆☆☆ A Google User · Jun 3, 2015

Waste of money Do not buy this app. Complete waste of money. Had a free app before and worked really well for free. Tried this all day at my last track day with full 3g service and did not work once... Maybe it needs to be hard-wired on to the car, but you are not allowed in the UK and why would a free app work over this when I paid £20... Absolutely rubbish and biggest waste of my money.

Google Play Rankings for Harry's LapTimer GrandPrix

Top rankings

Rank	Country	Category	List
58	Australia	Sports	Top Grossing

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Ranking history in Australia

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Technologies used by Harry's LapTimer GrandPrix

Harry's LapTimer GrandPrix is requesting 24 permissions and is using 17 libraries.

Permissions

Development tools

test access to protected storage

Your location

approximate (network-based) location, precise (GPS) location

Network communication

view network connections, view Wi-Fi connections, pair with Bluetooth devices, full network access, Google Play billing service, Google Play license check, receive data from Internet

Your accounts

read Google service configuration

Storage

modify or delete the contents of your USB storage

Phone calls

read phone status and identity

Hardware controls

take pictures and videos, record audio

System tools

access Bluetooth settings, run at startup, prevent phone from sleeping

Extra

android.permission.BLUETOOTH_CONNECT, android.permission.BLUETOOTH_SCAN, android.permission.HIGH_SAMPLING_RATE_SENSORS, com.google.android.gallery3d.permission.GALLERY_PROVIDER, com.harrys.laptimertrainer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION, com.harrys.laptimertrainer.permission.MAPS_RECEIVE

Ad network libraries

None found

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components

Android Jetpack VersionedParcelable Android Jetpack Annotations Android Library Icon

Android Jetpack Annotations Android Jetpack Widgets Android Library Icon

Android Jetpack Widgets Android Jetpack AppCompat Android Library Icon

Android Jetpack AppCompat AndroidX Activity Android Library Icon

AndroidX Activity Android Activity Saved State Android Library Icon

Android Activity Saved State Google Cloud Messaging (GCM) Android Library Icon

Google Cloud Messaging (GCM)

AndroidX Legacy: Support Library core utils

AndroidX Legacy: Support Library core UI Google Maps SDK Android Library Icon

Google Maps SDK jsoup: Java HTML Parser Android Library Icon

jsoup: Java HTML Parser

Google Play Licensing Service AndroidX GridLayout Android Library Icon

AndroidX GridLayout Eclipse Paho MQTT Android Library Icon

Eclipse Paho MQTT Splunk MINT Android Library Icon

Splunk MINT

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