2.4
790 reviews
100K+
Downloads
Content rating
Everyone
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About this app

Easily estimate your BAC (Blood Alcohol Content) with a BACtrack smartphone breathalyzer and this free companion app. Designed by BACtrack, the leading manufacturer of personal and professional breathalyzers, this app connects to your device wirelessly via Bluetooth®, and allows you to measure your alcohol level with the award-winning BACtrack Mobile, BACtrack C6, and BACtrack C8 smart breathalyzers.

BACtrack makes it easy to understand how alcohol affects the body, empowering you to make smarter, more informed decisions. In this version of the BACtrack app:

• Pairing is automatic once you turn on your BACtrack and open the app; results are communicated via Bluetooth® to display on your phone.
• Quickly and easily estimate your BAC and read safety information about corresponding impairment levels.
• ZeroLine® estimates when your BAC will return to 0.00%.
• Saved BAC readings allow you to get a clear picture of your drinking habits.

The most trusted brand of breathalyzers on the market, BACtrack has been featured in Fast Company, CNET, and Bloomberg. BACtrack was rated #1 Breathalyzer by Car and Driver Magazine, and has won top awards from Popular Science, Good Design Australia and the Edison Awards. Download now and test your BAC anywhere, anytime!

BACtrack was the first company to ever receive FDA clearance to sell breathalyzers to consumers for personal use. Using a personal breathalyzer is a great way to enjoy yourself responsibly. As with anything health related, you should seek advice from your doctor or other qualified health professional before changing habits.
Updated on
Dec 4, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Photos and videos, and Device or other IDs
This app may collect these data types
Personal info, Health and fitness and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.3
766 reviews
Ian Bunch
October 22, 2025
What I like: I like how the app gives advice or information about symptoms depending on the detection results. What I don't like: When adding an entry, there is an option to select and record what drink either I or my friend had. However the drinks list has no search function, and the app doesn't even do the bare minimum to present this list in alphabetical order! How the hell am I supposed to find anything in this list, assuming it is on there at all?
1 person found this review helpful
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D J
July 5, 2025
this device is so buggy... it never connects on the first try. it says it's connected to Bluetooth and prompts you to begin a reading and then 5 seconds later it disconnects - and then you have to close the app and start again hoping that it will stay connected. this same issue has happened with multiple different phones by the way. also, now I just opened the app and the app said to "review terms" to continue and scroll to the bottom. I scrolled to the bottom and there's no button to continue!!
7 people found this review helpful
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KHN Solutions, LLC.
July 18, 2025
Hello DJ, I am sorry to hear that you are experiencing this issue. My team is happy to help troubleshoot this with you right away. Please reach out to support@bactrack.com and provide screenshots of what you are seeing so we can dive into this and resolve as quickly as possible. Thank you, Breanna Davis Director of Customer Success
Aaron Smith
April 2, 2023
The unit does not reliably connect or work when it is connected. I raised this issue with Bactrack when it arrived. Even though I told them it was an app problem and not a hardware problem, they had me return the unit. They kept it for a month and then sent it back saying nothing is wrong. Yet, the connection issue still persists.
5 people found this review helpful
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What’s new

We have made adjustments to enhance your experience. Update the app and keep enjoying all the new features.