iPhone Screenshots


The Smokerlyzer® app is an aid to help people stop smoking, one breath at a time.

Stopping smoking is hard and due to withdrawal from nicotine you can often feel less healthy during your attempt, but with Smokerlyzer you can instantly see the level of poisonous Carbon Monoxide (CO) leaving your body with a single breath.

Whether you are attempting to quit smoking for good, simply cut back or motivate a loved one, monitoring CO levels with the Smokerlyzer® app will help you accurately track and manage your smoking throughout the quitting process so that you can set and achieve attainable goals. You’ll use it very much like you would use a set of scales if you were trying to lose weight. The less you smoke, the lower your reading, the healthier you are!

Share your results - Email your results daily to friends/family/health professionals who can help motivate you to stay on track in your attempt to stop smoking.

Track your progress - our simple graph will help you track your progress over time, your aim is to get into the green and stay there.

CO breath monitoring is a proven motivational aid that has been helping people to stop smoking for 30 years.

For best results we recommend using the app with the iCO Smokerlyzer®, the world's first Smokerlyzer® breath CO monitor for use with your smartphone. Which is purchased

Quit smoking successfully today!

What's New

Version 1.04

German language corrections.
Fixed some layout issues.


Bedfont Scientific Ltd.
9.5 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Dutch, French, German, Italian, Polish, Portuguese, Spanish, Swedish
Age Rating
You must be at least 17 years old to download this application.
Frequent/Intense Alcohol, Tobacco, or Drug Use or References
© Bedfont Scientific Limited 2014


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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