# COVID Symptom vs SickPredict™

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.

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.

## The numbers

| Metric | COVID Symptom | SickPredict™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (402 ratings)](https://appshunter.io/ios/app/covid-symptom/id1510692333/reviews)** | [4.1 (30 ratings)](https://appshunter.io/ios/app/sickpredict/id1531998468/reviews) |
| Number of ratings | **402** | 30 |
| Positive reviews | 72.4% of reviews | **73.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Subscription |
| Size | 33 MB | 58 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [The University of Michigan](https://appshunter.io/developer/380339599) | [Health Logic Global](https://appshunter.io/developer/1531998470) |

## What reviewers say

### COVID Symptom

[App page](https://appshunter.io/ios/app/covid-symptom/id1510692333)

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.

**Highlights:** Track key COVID symptoms, View symptom history, Alleviate anxiety, Contribute to COVID research, Share symptom reports with doctors, Record test results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Helpful for tracking symptoms
- 🚀 Simple and intuitive interface
- 🚀 Convenient for daily health monitoring
- 👍 Great for research and public health data collection

**What reviewers complain about**

- 🐛 Glitchy and unreliable
- 🐛 Unable to add custom symptoms or notes
- 🐛 Cannot enter historical data
- 🐛 Issues with accepting location data (postcodes/zip codes)
- 🐛 Reports not generating or corrupted

**Reported bugs**

- 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**

- 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™

[App page](https://appshunter.io/ios/app/sickpredict/id1531998468)

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.

**Highlights:** 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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Access | $3.99 | per month |
| Basic Access | $28.99 | per year |


## Frequently asked questions

### Is COVID Symptom free?

COVID Symptom is free to download, with no in-app purchases.

### Is SickPredict™ free?

SickPredict™ is free to download, with in-app purchases available.

### Which has better reviews, COVID Symptom or SickPredict™?

COVID Symptom is rated higher. COVID Symptom averages 4.4 out of 5 from 402 ratings, while SickPredict™ averages 4.1 from 30 ratings.

### Do COVID Symptom or SickPredict™ have ads?

SickPredict™ shows ads; COVID Symptom does not.

### Which is updated more often, COVID Symptom or SickPredict™?

COVID Symptom ships an update weekly, and SickPredict™ every 2 months. Most recently, COVID Symptom was updated on September 28, 2026 and SickPredict™ on July 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*