Live BAC countdown
Watch your number drop in real time. Know precisely when you're fit to drive again.
The smarter drinking companion
Never get a DUI again.
Know your limit. Own your night. Ok To Drive tracks your BAC in real time and tells you the exact moment you're clear to get behind the wheel — no guessing, no regrets.
Free · Doctor-informed algorithm · Phones & tablets
Sound familiar?
"I'm probably fine to drive."
That's how most nights turn into fines, lost licences, and lives changed forever. You've felt fine before — and you weren't. Ok To Drive replaces gut feeling with a live number and a countdown you can trust.
At a glance
Green means go.
Red means absolutely not.
Your BAC updates as the night progresses. One look — on your phone or your home screen widget — and you know exactly where you stand.
Clear to drive
You're under the limit. Keys are OK — if you feel alert too.
Easy there
Still metabolizing. Monitor your BAC and wait it out.
Do not drive
Call a ride. Sleep it off. Your future self will thank you.
The truth
Coffee won't save you.
Cold showers won't either.
Only time lowers your BAC. Not water, not food after the fact, not "feeling sober." Ok To Drive uses a medically-informed algorithm — built with doctors — to estimate when your body has actually processed what you drank. We'll tell you the exact minute you're clear.
Built for real nights out
Everything you need to stay safe
Push when you're clear
Get notified the moment you're back in the green — so you're not checking your phone every five minutes.
Track the whole crew
Multiple profiles for you and your friends. Everyone knows their own status.
Hangover heads-up
See what tomorrow looks like before you order another round.
Hydration nudges
Stay ahead of the morning after with timely water reminders.
Widget on your home screen
Your BAC status, always one glance away — without opening the app.
Full drink library
Beer, wine, spirits, cocktails — or build your own custom drink in seconds.
Calendar & habits
Look back at your nights over time and spot patterns before they become problems.
How it works
Three taps. Total clarity.
Log what you're drinking
Tap your drinks as you go. We factor in weight, gender, food, and fatigue.
Watch the traffic light
Green, yellow, or red — your BAC updates live as the night unfolds.
Drive only when you're clear
Wait for the notification. Then — and only then — grab your keys.
Know your limit.
Own your night.
Download free. Make smarter choices. Never wonder "am I OK?" again.
See it in action
Built for your Phone
Ok To Drive provides well-informed estimates — not medical or legal advice, and not a guarantee of fitness to drive. Everyone metabolizes alcohol differently. Never use this app as your sole basis for deciding to drive. When in doubt, don't.