The $1 million smartphone breathalyzer that failed the ultimate test

Technology · Published 18 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: Imagine a keychain device that turns your phone into a sobriety test. Breathometer promised a revolutionary way to measure blood alcohol content on the go, backed by a massive Shark Tank investment. Instead, it became a cautionary tale of marketing hype over technical reality.

Breathometer was born in 2012 from the vision of serial entrepreneur Charles Michael Yim. He identified a gap in the market: existing portable breathalyzers were too expensive and bulky for casual use. By designing a small device that plugged into a smartphone's audio jack, the company could offload the heavy processing power to the phone's hardware. This allowed the physical sensor to be small enough to fit on a keychain, creating a seamless user experience where the app could instantly provide one-click calls to taxis or friends if a user exceeded legal limits.

The project gained significant momentum through public interest and high-profile media. An Indiegogo crowdfunding campaign that ended in April 2013 far exceeded its $25,000 goal, raising over $138,000 from early adopters. This was followed by a landmark appearance on Shark Tank in September 2013, where all five investors provided a total of $1 million for a 30% stake in the company. Despite this massive capital injection, the product struggled with fundamental reliability.

The downfall came in 2017 when the Federal Trade Commission (FTC) intervened. The agency charged the company with knowingly making false marketing claims about accuracy, noting that the device frequently underreported blood alcohol content. The resulting settlement forced the app's shutdown and required full refunds for customers who purchased the Original or Breeze models, which totaled $5.1 million in sales. Following the scandal, the company pivoted to a dental health product called Mint, which measured sulfur compounds to detect bad breath and gum disease, before eventually disappearing from major retail sites.

The Breathometer story serves as a classic study in the risks of 'hardware-as-a-service' models where the software's promises outpace the sensor's capabilities. It highlights the danger of leveraging a high-profile platform like Shark Tank to scale a product before its core technology is sufficiently validated for safety-critical measurements.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Breathalyzers do not measure blood alcohol directly, and their accuracy depends on human physiology.
• The rise and fall of the 'dumbphone' era
• The smartphone that pushed human biology—and legal boundaries—to the limit
• Can we turn human breath into a digital health fingerprint?
• The pocket-sized supercomputer that replaced your entire gadget collection
• The invisible trade-off between hands-free convenience and digital privacy
• The microwave sweet spot: balancing distance with data capacity
• The web and the internet are not the same thing.
• The journey from a click to a loaded webpage
• The invisible journey from a URL to your screen
• The invisible journey from a typed URL to a loaded webpage
• The internet is the hardware; the web is just the software

More in Wireless · More in Technology · Latest · A–Z · All topics