Studies from all over the world have confirmed that over 85% of COVID-19 cases detected through surveillance and tests had a fever, making it a primary symptom for detecting the disease.

We use advanced spatial analytics to identify abnormal increases of body temperature in any region. This allows us to predict the risk of new outbreaks of COVID-19.

Please take a moment to provide your exact body temperature. Precise information helps us to build more accurate models, which will ultimately help us save lives.

We need your location to identify patterns of illness in your area. It will never be used to individually identify you.

If you agree to allow access to location services, your location will be automatically detected to identify which county you are in. If you deny access to location services, you will have to manually include your zip code.

If you are above the age of 13 and residing in the US, you can download this app and submit your daily body temperature and other symptoms.

When you download the app, you will have to create an anonymized profile by submitting your gender and age range. You will then be able to report your body temperature, as well as other other symptoms including dry cough, breathing difficulties, and loss of smell or taste. Fever is also listed as a symptom for those who do not have a thermometer. You are allowed to enter this data more than once per day if you wish.

If you want to submit your symptoms, you will not have to write any text explaining them. Our user-friendly interface allows you to report everything by simply selecting your temperature and clicking on checkboxes. It will take less than 10 seconds.

We have plans of rolling this out to other countries in the future, but for now it’s only available in the US.

Don’t worry, given the large availability of options in the market this might be tricky. We have gathered the basic instructions for using the most common thermometers.

Digital thermometer

A digital thermometer is usually used two ways: orally or placed in the armpit.

If you are using an oral thermometer, do not eat or drink anything for at least five minutes before you take your temperature because the temperature of the food or beverage could make the reading inaccurate. Place the thermometer under your tongue and keep your mouth closed during this time. Hold the thermometer in the same spot for about 40 seconds.

In either case, the thermometer will beep when reading is done (this method may take longer than 30 seconds).


This type of thermometer measures the temperature inside of the ear by reading the infrared heat there. For best results, make sure to follow the instructions on the device about placing the tip correctly. They should not be used if you have too much earwax, or an earache.


Forehead thermometers are also used to measure temperature but may not be as reliable as the digital thermometers. They are placed on the forehead and measure the infrared heat that comes off of the head.

We are primarily interested in the real-time body temperature information of people across the US. This helps us in identifying regions which are experiencing unexplained increases in influenza like illnesses. We use the optional additional symptoms information to further narrow down potential COVID-19 hotspots.

This app is not a diagnostic tool. For more information regarding COVID-19 please visit the CDC website

Thanks for thinking on it! We welcome all new ideas and suggestions for improving our system. Please, send an email to and we’ll get back to you.

You can use the app as long as you are over 13 years old, and you don’t need parental consent for submitting your data.

Given the urgency of the circumstances, this app was developed in very short time, and some errors might arise. We welcome any and all feedback about our app, so please use the form below on the website or directly send an email to

We are continuously working on improving the app, and new updates will be made available in the relevant app store. Thank you for your patience.

No, you don’t have to provide any personal data. The first time you open the app you will have to create a profile by submitting only your age range and gender. You will never be asked to provide personal information such as your name, birth year, or email address.

Some thermometers aren’t recommended due to their inaccuracy.

  • Plastic strip thermometers only measure the skin temperature.
  • Pacifier thermometers are not precise and are difficult to use correctly because they have to stay in the child’s mouth for long enough to record a temperature.
  • Smartphone app thermometers.
  • Old glass thermometer that contains mercury. These types of thermometers were found in nearly every house and hospital at one time before digital thermometers were available. The mercury thermometers are difficult to read and do not always provide accurate information, so we don’t recommend their used.

As of now, the website doesn’t have the option for submitting your data. We plan to have this feature available in the near future.

In the currently available version of the app this is not possible. We are working to include this functionality in future releases so that more than one person, e.g. members of a family, can submit all the information using a single device.

Unfortunately, it is not possible to change the default settings of the daily reminder. We will incorporate this feature in future releases of the app.

Not for now, but we’re working to include this functionality in future releases.


Our analytical algorithms are capable of handling some missing data. But the more information you provide us, the better predictions we will be able to make.

The raw collected anonymized data is linked to a randomly generated ID and securely stored in a server. Location data will be aggregated at county level to avoid identification.

The data obtained from the participants will be available only to the team. We will never share the data in any form. The results of our analysis are made available publicly, in the form of responsive maps, and can be shared to government agencies to improve the efficiency of healthcare and social interventions.

Never. This app is for research use only, so we will never use it for commercial purposes.