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Android Apps > Health & Fitness > COVID Symptom Study
COVID Symptom Study icon

COVID Symptom Study

5.1.0
Zoe Limited
4.66
148,881 reviews
1,000,000+
Downloads
Free

Help slow COVID-19 by self-reporting your symptoms daily, even if you feel well.

This app is currently not available on Google Play.

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About COVID Symptom Study

COVID Symptom Study was a health & fitness app developed by Zoe Limited. It was removed from Google Play Jul 12, 2025 and is no longer available for download.

Download Statistics

COVID Symptom Study had been downloaded 1.6 million times before it became unavailable.

User Ratings

COVID Symptom Study was rated 4.66 out of 5 stars, based on 150 thousand ratings.

App Information

COVID Symptom Study was free to download. The APK download size was 40.64 MB. The last available version was 5.1.0. The last update was on September 26, 2023.

Technical Requirements

COVID Symptom Study required Android 5.0+ or higher. The app had a content rating of Everyone. The app had been available on Google Play March 2020.

Description
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: [https://www.cdc.gov/coronavirus/2019-ncov/index.html](https://www.cdc.gov/coronavirus/2019-ncov/index.html)

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:

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

SYMPTOM TRACKING
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).

Recent changes:
Minor tweaks and fixes for ZOE's Ferment Experiment
Show more Show less

More data about COVID Symptom Study

Price Free to download
Total downloads 1.6 million
Rating 4.66 based on 150 thousand ratings
Version 5.1.0
APK size 40.6 MB
Number of libraries 48
Designed for Android 5.0+
Suitable for Everyone
Ads NO ads

App Performance Report

Get a detailed PDF report for COVID Symptom Study with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Google Play Rating history and histogram

Downloads over time

COVID Symptom Study has been downloaded 1.6 million times.

Changelog of COVID Symptom Study

Show changelog

Developer information for Zoe Limited

Zoe Limited

Website

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Address:

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Share COVID Symptom Study

Comments on COVID Symptom Study for Android

★★★★★ Really good app. Still reporting my symptoms daily. Easy to use. Good opportunities for other research studies too.
★★★★★ Very quick and easy to use. Only problem there wasn't a Forgotten Password function, so had to uninstall and start again after a couple of days Update: the ZOE team added Forgotten Password function - excellent! Update April 2024 - still completing the daily report. Grateful to be able to contribute citizen data, especially as I currently have covid!! Excellent app, kudos to Tim Spector and all the team.
★★★★★ Easy to register and quick to report each day with the satisfaction of knowing that you are contributing to the research against COVID-19 and its variants and many other health issues. I'm still happy to contribute.
★★☆☆☆ I posted in this app every day for approaching 4 years. Then it stopped working, as I could no longer log in. Logging in had never been an issue before. There's no option to retrieve a lost password, and the 'don't have an account' option is grayed out. I emailed Zoe, but received an unhelpful response and nothing has changed. So, it used to be a good app, but now it's useless
★★☆☆☆ Why am I not able to sign in anymore. I've been using this app since Covid-19, and now, all of a sudden, I can no longer log in. WHY
★★☆☆☆ Initially a covid symptom app, now completely turned around to be a bogus health app promoting BS like unnecessary glucose monitors for all. Uninstalling now. Would like to know whether it has done any data mining whilst it has been installed on top of the voluntary input of covid symptoms and vaccination dates and names that I think were requested.

Technologies used by COVID Symptom Study

COVID Symptom Study is requesting 20 permissions and is using 48 libraries.
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