Your personalised allergy companion app

If you’re affected by pollen from grass, trees or weeds, our app can help you track your hay fever symptoms so you can manage your day.

Get daily pollen, weather and air quality data for any location in the UK, together with a 3-day forecast. Receive personalised allergy insights, discover daily tips and more useful features.

Get our free app now:

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With more than 95 years of allergy research behind us, we know a lot about allergies. And we want to share our knowledge with you. That’s why we created the klarify app.

Quick, easy and accurate allergy insights

klarify gives you location-based pollen, weather and air quality forecasts. You can also check the allergy calendar to see low and peak pollen seasons. Regularly log how you feel your hay fever is affecting you to get personalised insights. And learn about your hay fever triggers, such as grass, weeds and trees.

Our app makes life with allergies surprisingly simple

Get reliable data about pollen, air quality and air pollution and find relevant allergy information you can trust. Discover how to take better care of your allergy, learn about treatment options and much more.

All of this at your fingertips, whenever and wherever you need it.

Best Wishes

Your klarify team

klarify: the smart way to manage your allergy

App Store and Google Play reviews


Amazing! I’ve been searching for an accurate app where I can log my symptoms and check the pollen count, specifically grass pollen. I came across this a year ago but the app only worked in Germany. I am thrilled it now works in the U.K!! I don’t know where I would be without it. And I can’t believe it’s free!


BRILLIANT! Love this app very useful. A must for any sufferer.


Klara is excellent, it keeps me aware of the pollen before I go out.


Well specified app with superb insight as to what factors may adversely impact you.


BRILLIANT! So interactive and well made, I'm dumbfounded as to why it doesn’t have 10 million + downloads! It’s such a well thought out and useful app! One problem is that the only link that actually works to create an account is on the 'My page' page, the other links don't work once you receive the email


Amazing app. Truly helps me predict when my allergies will be bad, and what activities I can do that day. Also helps me track how I feel and what medicines I’ve taken.

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