The Journal
Reading your own data.
Notes on telemetry, technique, and the culture around driving well.
Is TripRank Free? Free vs Pro, Explained
If you’ve searched “Is TripRank free?” — good news: yes, TripRank is free to download and use. You can track drives, log trips, and build a driving history…
How TripRank Works: GPS Tracking, Scores & Pro Features
How does TripRank work? Start a trip and TripRank tracks your GPS position and speed the whole drive — even with no signal — then turns that raw…
What Is TripRank? The Driving App, Explained
What is TripRank? It’s an iPhone app that tracks your drives using GPS, then turns each trip into live stats and a post-drive scorecard — top speed, G-force,…
Speed From GPS: How Accurate Is It, Really?
Speed from GPS is accurate to within about 0.1–0.5 mph under a clear sky, and it gets noisy — or drops out for a second — in tunnels,…
iPhone Speedometer: 4 Ways to See Your Speed on iOS
Your iPhone has no built-in speedometer app, and Apple Maps only shows the posted speed limit — not how fast you’re actually going. To see live speed on…
First Track Day: What to Actually Check Before You Go
A first track day fails for boring reasons long before driving skill enters the picture. The pre-track checklist that matters.
Understanding G-Force: What Your Car Is Actually Doing Mid-Corner
0.9G, 1.1G, 1.3G — what lateral, braking, and combined G-force actually mean, street versus track.
How a GPS Speedometer Actually Calculates Your Speed
GPS speed isn't read off a dial — it's calculated. What happens between satellite signal and the number on your screen.