COVID Symptom vs SickPredict™
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COVID Symptom
Easily record and monitor your COVID-19 symptoms over time. This app helps alleviate anxiety by providing a clear history of your health status and test results. Contribute to vital COVID research by sharing anonymized data.
- Track key COVID symptoms
- View symptom history
- Alleviate anxiety
- Contribute to COVID research
- Share symptom reports with doctors
- Record test results
Read full descriptionHide full description
An easy-to-use app to track and record COVID-19 symptoms. There is no fee to use this app. In this time of crisis, every resident of the world is anxious about getting COVID-19, and views every sneeze, every cough, and fever as a sign that they may have COVID-19. Governments of every country are concerned about the spread of COVID-19, and are in search of solutions to help their citizens, and understand and prevent the spread of COVID-19. Are you anxious about COVID-19? Are you having fever, cough, or other symptoms? Have you been tested for COVID-19? Have you had contact with someone with COVID-19? Does a family member or friend have COVID-19? Do you want to contribute towards COVID research? In an attempt to solve these issues, we have built this COVID-19 symptoms tracker. Here are the key things you can do with this app: - Track key COVID symptoms - See history of your symptoms - Help alleviate anxiety - Help scientists and researchers to track, study, and model prevalence of COVID-19 in our communities - Share a report of your symptoms with your doctor - Maintain a record of your COVID-19 test results We have a well-researched list of COVID-19 related symptoms which can be tracked. Please note this app does not provide medical advice. If you have severe symptoms, please call 911, call your doctor, or go to the hospital emergency room. This app is currently not advised for use by people who are hospitalized with severe symptoms. Data Security: Your personally identifiable information, such as email ids and phone numbers will not be shared with anyone. We do not track your location, and do not collect or store any location data, except for a country and postal code that you can optionally enter. Your Donated Data will be made available to researchers. We may use aggregated, Donated Data to create heat maps showing prevalence of symptoms in the community, in order to help the public and policy makers better understand the spread of COVID-19. For questions and support, please contact help@covidsymptom.org You can also share this COVID symptoms tracker app with your friends and family to help them track their symptoms, contribute to COVID research and join our fight against COVID-19. Let's all unite and help each other out to fight this pandemic. If you would like to volunteer to help this project, please contact "volunteer@covidsymptom.org"
SickPredict™
This app leverages data from your Apple Watch to predict potential health changes up to 72 hours in advance. It calculates a personalized 'SickNumber™' and tracks your health metrics over time, providing alerts for risk level changes. It is intended for general wellbeing and informational purposes only.
- Predicts health changes up to 72 hours in advance
- Calculates personalized SickNumber™
- Tracks health changes over time
- Provides periodic risk level alerts
- Integrates with Apple Health data
- Uses machine learning algorithms
Read full descriptionHide full description
Requires an Apple watch and iPhone. Experience the future of personalized health! Based on tested scientific research and data from your Apple watch, the SickPredict™ App calculates, in real-time, your personalized SickNumber™ to help anticipate any upcoming changes in your health up to 72 hours in advance of experiencing any symptoms! Your personalized SickNumber™ is based on the specific health metrics gathered from your Apple watch. Key features: 1. Anticipates changes in your health up to 72 hours before you show symptoms! Research-tested, we can now predict oncoming illness with reasonable accuracy. Keep in mind, it is not perfect, but the scientific results have been conclusive in using certain data collected by your Apple watch to proactively identify potential changes in your health. 2. Track your health changes over time. Use this app to calculate your daily SickNumber™ and track your history. This app uses machine learning algorithms to track changes in your SickNumber™ over time. 3. Receive periodic alerts. The SickPredict™ app sends you daily notifications of your SickNumber™ and changes in your risk level. How It Works Over the past several years, research studies have been conducted involving more than 100,000 people wearing smart watches and the results were very positive, showing strong levels of accuracy in the ability to predict illness from health data that was recorded by the wearables. This app integrates with Apple Health and uses a multitude of data that is provided by your wearable everyday such as Active Energy, Body Temperature, Heart Rate, Heart Rate Variability, Oxygen Saturation, Resting Energy, Steps, Resting Heart Rate, Sleep Data and more. The SickPredict™ App calculates, in real-time, your personalized SickNumber™. The daily SickNumber™ ranges from 1-10 to help anticipate any upcoming changes in your health. Here are the SickNumber™ risk levels: o Low risk is 1-4 o Medium risk is 5-7 o Elevated risk is 8-10 Suggestions/Comments • Although it is not required to use your wearable at night, it is highly recommended. The results are significantly better if you consistently wear your watch at night and consistently throughout the day. • Remember, do not rely on the SickPredict™ App for medical advice or diagnosis. The App is not a replacement or substitute for professional medical care. Use the App for informational, general wellbeing purposes only. Always consult your health professionals if you have any health concerns. Subscriptions Payment will be charged to the credit card connected to your iTunes account after your trial period ends and when your subscription starts. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the trial period or current subscription period. The subscription options for the Basic Access subscription include either a $3.99/month monthly fee or $28.99/ year annual fee. Both include a free 1 week trial. Manage your subscription by going to your Account Settings on your iPhone. Additional Information: Visit www.SickPredictApp.com Terms of Use: Visit https://sickpredictapp.com/terms-of-use/
Screenshots
Verdict
The clearest difference is in-app purchases: COVID Symptom at none against SickPredict™'s 2. COVID Symptom also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). On price, review sentiment, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SickPredict™ sells 2 in-app purchases, starting at $3.99 per month. COVID Symptom asks for nothing beyond the download.
COVID Symptom holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: COVID Symptom has 402 ratings behind it against 30, so its average is the more settled of the two. Written reviews split almost evenly too, at 72% and 73% positive.
COVID Symptom ships an update weekly, SickPredict™ every 2 months. The most recent releases landed on September 28, 2026 and July 5, 2026 respectively.
| Parameter | COVID Symptom | SickPredict™ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (402 ratings) — better | 4.1 (30 ratings) |
| Positive reviews | 72.4% of reviews | 73.1% of reviews — better |
| Number of ratings | 402 — better | 30 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 33 MB | 58 MB |
| Age rating | 4+ | 17+ |
| Developer | The University of Michigan | Health Logic Global |
Customer experience
COVID Symptom
SickPredict™
Bugs and requests
COVID Symptom
Reported bugs
4 issues- Symptom and health data not saving properly
- Gender and other settings not persisting
- Oxygen saturation readings not accepted below certain levels
- Inconsistent app behavior and crashes
Requested features
5 requests- Add more symptom options, including uncommon ones
- Allow users to add custom symptoms or notes
- Implement ability to retroactively add past symptoms and data
- Improve location data handling to accept more formats
- Generate comprehensive health reports for users
SickPredict™
Not enough reviews yet to summarise bugs or requests.
In-app purchases
COVID Symptom
No in-app purchases
SickPredict™
- Basic Access7 Days trial$3.991 Month
- Basic Access7 Days trial$28.991 Year









