COVID Symptom Study

152K reviews
Content rating
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About this app

Take 1 minute each day and help fight the spread of COVID-19 in your community
* Report your health daily even if you feel well
* Get a daily estimate of COVID in your area
* Help slow the outbreak near you

Join millions of people supporting scientists at Stanford University, Harvard University, Massachusetts General Hospital, and King's College London to help fight coronavirus by identifying:

* How fast the virus is spreading in your area
* High-risk areas in the US
* Who is most at risk, by better understanding symptoms linked to underlying health conditions

You will contribute to advance research on COVID-19 in partnership with leading health researchers globally like TwinsUK, one of the most clinically detailed studies in the world.

This app (formerly known as the Covid Symptom Tracker) allows you to help others, but does not give health advice. If you need health advice please visit the CDC website at: [](

This app has been designed for everyone to report their status not just those who are ill.

It was designed by doctors and scientists at King's College London, Guys and St Thomas’ Hospitals and Zoe Global Limited, a health technology company.

In the US the app is being used by the Nurses' Health Study to identify symptoms in active healthcare workers who are treating people with COVID across the country and risking their own health to help us.

In response to recommendations by Stand Up To Cancer (SU2C), the app also includes questions for cancer patients and survivors, such as if they are living with cancer, what type of cancer and what treatment they are receiving.

If you would like to help out in this difficult time, then you can. Download the app and share daily your own status, even if you are well. With your help we can understand much better the situation across the nation, how the disease presents itself to different people, and how it progresses.

This is a new virus which the world has never seen before. There are a wide range of symptoms, which differ between people. With your help we can understand better how the disease presents itself depending upon individual factors such as health and age.

No information you share will be used for commercial purposes.

There are two parts to the app:

You will be asked to share some general information, such as your age and some health details, such as whether you have certain diseases.

We will ask you every day to let us know how you feel, so you can share your symptoms. We will also ask whether you have visited the hospital, what treatment you received there, and whether you have been tested for COVID-19 (Coronavirus).
Updated on
Jul 13, 2022

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
App info and performance
This app may collect these data types
Personal info, Health and fitness, and App activity
Data is encrypted in transit
You can request that data be deleted
152K reviews
S Greenhouse
July 6, 2022
Update July 2022: reminders have disappeared again. Update 22 December: reminders have disappeared again. I have been using this app since it was released. The update caused two problems. One is having to relog into the app, with which some reviewers are having problems. The second glitch is the loss of reminder notifications. I have notifications allowed on my phone, but it appears the app is not sending them.
75 people found this review helpful
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Dominic Pinto
July 4, 2022
Currently i.e. this morning the app won't open up and get the message 'COVID Symptom Study keeps stopping' and 'close app' and 'send feedback' - Have tried several times and get the same message, and have sent feedback twice. The problem persists as I daily try to start the app, it stops and I send feedback. I tried again yesterday (July 3rd) and it worked, and again earlier today.
5 people found this review helpful
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Philip Withnall
July 1, 2022
The app has always been easy to use, and the latest update seems to successfully fix crashes in it. The only problem now is that the app is using 500MB of storage for no discernible reason. On an 8GB phone, that’s quite a lot of the available storage! Could it be made less space-hungry please?
10 people found this review helpful
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What's new

Fixed a bug where quick LFT tests were sometimes being added to the incorrect user