Guardian alert

SpeedMark

Protect

every drive.

Speed limits in real time.
Get warned the moment you go over.
(and let others know, too, if you want)

Real-time speed limit alert

How It Works

Getting Started

Launch & go

Subscribe and start driving — no account needed to track.
Runs in the background. Even in your pocket.

Real-time limits & alerts

See your speed and current limit. Warnings escalate for your safety — yellow as an early warning, red when you're over, audio if speeding persists, flashing as a final alert.

Getting More

Optional Guardian Alerts

Invite up to 3 people you trust. They get an alert if you drive well over the limit — no constant location tracking. Privacy-first, always.

Auto-recorded & ready

Your last 2 minutes are always recorded — replay instantly on a map. Export if you ever need proof. Save to keep forever.

Why SpeedMark?

Real-Time Speed Limits & Alerts

SpeedMark shows the posted speed limit as you drive and warns you the moment you go over — the speedometer turns from white to orange to red, with an optional sound.

Share on Your Terms

Invite people you trust and they'll get an alert if you drive well over the limit — no continuous location sharing, no tracking. Safety, not surveillance.

Stored Only on Your Phone

Your driving data stays on your device and is never uploaded. No account required. You decide when to replay, export, or share — and with whom.

SpeedMark app features SpeedMark app features

Know the limit. Stay ahead of it.

You're on an unfamiliar road and the limit drops without warning. You're already over before you see the sign. SpeedMark catches it first — glance down, ease off, done. No ticket, no close call. Set up a Guardian and the people who care know you're driving safely — without ever seeing where you are.

Unfamiliar roads, changing zones, accidental speeding you didn't even notice — covered.

Drive safer, every day.

Need proof? It's already there.

Your last 2 minutes are always recorded — GPS-verified speed, route, and timing, stored only on your phone. If you're ever fighting a questionable ticket, sorting out an accident, or filing an insurance claim, your record is right there to replay or export.

Accused of speeding? Your driving record is already saved.

Your proof. Ready when it matters.

"I had no idea how often I drifted a few over until SpeedMark started flashing red. A couple weeks in, I just drive calmer now."

— Martin, Hungary

"My son just started driving. I get a heads-up if he's really speeding — no live map, no tracking his every move. It's the only thing he actually agreed to."

— Adrienn, United States

"Every other driving app wanted my location around the clock. SpeedMark keeps it all on my phone. That's exactly why I trust it."

— Sandra, Germany

Intelligent Speed Assistance (ISA)

The safety tech the world is making mandatory — for the car you already drive.

Intelligent Speed Assistance reads the posted speed limit and warns you the moment you go over. It's now required in every new car sold in the European Union, U.S. states are writing it into law, and highway-safety regulators call it one of the most promising tools to stop speeding — which still kills more than 11,000 Americans every year.

22,000 fatal U.S. crashes a year ISA could prevent1
64% less excessive speeding in a 500-vehicle NYC pilot1
2024 the year ISA became mandatory in all new EU cars2

In-car ISA only comes in new vehicles and managed fleets. The hundreds of millions of cars already on the road have none. SpeedMark puts ISA-style speed awareness on your phone — real-time limits and instant warnings — so the car you already drive gets it too.

1 Governors Highway Safety Association, 2026.  2 EU General Safety Regulation.  SpeedMark is an independent app that provides advisory speed-limit alerts; it is not a certified in-vehicle ISA system.

Protect
every drive.

Download on the App Store