Real-time Monitoring
Measure blood alcohol levels in seconds to see if your body is currently in an elevated state.
Alcohol Intelligence
Know your alcohol level with one breath.
blo uses breathalyzer technology to translate alcohol readings into clear daily insights so your decisions are based on data, not guesswork.
A clearer reading than guessing
Understand where your alcohol level stands right now, then make confident choices before you drive, sleep, or head out again.
Personalized trends
Track readings over time and connect patterns with drinks, timing, hydration, and sleep.
No strips. No pricks.
Take repeatable, non-invasive breath tests anywhere without strips, pricks, or paper tests.
Built on breathalyzer science
When alcohol is in your system, a breathalyzer can detect it in your breath and estimate your BAC. blo captures that signal and turns it into an easy, actionable metric.
Be first when blo launches
Join the waitlist for launch updates, early pricing, and first access to a smarter breathalyzer.