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Safedrink
Know when you'll be sober — a BAC timer tuned to your body
Log each drink and Safedrink estimates your BAC and counts down to zero. Personalized with Watson's body-water formula, keeps ticking in your notification shade, no account, data stays on device. Free, open-source core. Reference only — never drive on it.
Hi PH — I'm the developer. Built it after one too many mornings wondering whether last night's drinks had cleared. Log each drink as you go; the app personalizes the Widmark r via Watson's total-body-water formula, shows a plain Widmark estimate side by side, and keeps counting in the notification shade after you close it. No account, no server — everything stays on the device. Android only for now (iOS is next). Happy to answer anything about the formula — the calculation core is open source in the repo linked above. It's a reference estimate, not a medical device; please never use it to decide whether to drive.
About Safedrink on Product Hunt
“Know when you'll be sober — a BAC timer tuned to your body”
Safedrink was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #94 on the daily leaderboard. Log each drink and Safedrink estimates your BAC and counts down to zero. Personalized with Watson's body-water formula, keeps ticking in your notification shade, no account, data stays on device. Free, open-source core. Reference only — never drive on it.
On the analytics side, Safedrink competes within Android, Health & Fitness, Open Source and GitHub — topics that collectively have 251.1k followers on Product Hunt. The dashboard above tracks how Safedrink performed against the three products that launched closest to it on the same day.
Who hunted Safedrink?
Safedrink was hunted by Tim Jang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Safedrink including community comment highlights and product details, visit the product overview.
Tim Jang