iPhone Screenshots

What’s New

Version 1.3.6

1. Added confirmation to day passes.
2. Optimised telemetry overlay in video export.
3. Fixed bug when importing user profile.

Ratings and Reviews

4.8 out of 5
24 Ratings

24 Ratings

Melsimj ,

Awesome trackday timer

Great performance logger: TDG is more than I expected, it's not just another iPhone Laptimer, there's a lot more to it! There are some genuinely good features that helped me understand my on track metrics - braking/acceleration and improved my riding ability' it's really that good! The recent release added a feature that allows 'File imports' from 3rd Party accessories, since I'm not keen on mounting my iPhone on my bike, I set up the trip recording feature on the Dual XGPS160 (external GPS) after I finish my session, TDG syncs the imported .kml file from the Dual XGPS160 with the track Database, it finds the nearby track and any sector data! I get to see all my laps and sector times, Its a shame I can't upload to the leaderboard, yet! Highly recommended!

Harmeet07 ,

The best app ever!

Man I love this app, it's Genius (pardon the pun) I've never really been interested in chasing lap times, you only crash when you do. But these guys are on a mission to unlock the science of going faster, but doing so safety and deep level understanding. The main benefit for me was the GoPro integration ( I have 3 GoPro HERO5 cameras), it's faultless, simple and above all clever! When you add the google maps to the mix and vehicle telemetry, it's GENIUSSSSSSSSSSS!

Userbey ,

I love this app!

Wow! I love this app, being a woman in a male dominated sport, it’s usually all about lap times, but I discovered the GoPro import, and the Genius ability to export 4k video with the usable data overlays, I was sold! It’s the only feature I use now, way better than GoPro’s native version, the TDG overlays tells me much more and gives context to my performance, now I’m interested in lap times 😉simply Genius.


Avant Garde Associates Limited
195.8 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© Avant Garde Associates Ltd
In-App Purchases
  1. Single Session £2.99
  2. Group Buy £5.99
  3. G'licious 6 £71.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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