# FluStar vs Wastewater Trends

The clearest difference is review sentiment: Wastewater Trends at 100% against FluStar's 0%. Wastewater Trends also leads on rating (4.9 vs 2.3) and ads (none vs shown). FluStar's advantage is update cadence (fortnightly vs every 4 months) and iOS requirement (11.0 vs 17.2). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Wastewater Trends holds the better App Store score, 4.9 against 2.3. Both are backed by a comparable volume of ratings — 13 and 7 respectively. Written reviews point the same way: 0% of FluStar's written reviews are positive against 100% of Wastewater Trends's.

FluStar ships an update fortnightly, Wastewater Trends every 4 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | FluStar | Wastewater Trends |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (13 ratings)](https://appshunter.io/ios/app/flustar-flu-tracker/id1483474643/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/wastewater-trends/id6475651538/reviews)** |
| Number of ratings | **13** | 7 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Ad-supported | **Free** |
| Size | 22 MB | 3 MB |
| Requires iOS | **11.0** | 17.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [IQVIA Inc.](https://appshunter.io/developer/376388241) | [Matthew Rothenberg](https://appshunter.io/developer/1724673668) |

## What reviewers say

### FluStar

[App page](https://appshunter.io/ios/app/flustar-flu-tracker/id1483474643)

Track current cold and flu activity by ZIP code across the US. Get information on influenza symptoms, past epidemics, and how to differentiate between a cold and the flu.

**Highlights:** Real-time flu activity by ZIP code, Cold and flu symptom information, Educational content on influenza, Data on past flu epidemics, Distinguish between cold and flu

**Features:** macOS Compatibility

**In-app purchases:** none


### Wastewater Trends

[App page](https://appshunter.io/ios/app/wastewater-trends/id6475651538)

Monitor community COVID-19 infection levels using national wastewater surveillance data. Visualize trends with interactive charts and home screen widgets to stay informed about viral activity in your area.

**Highlights:** Wastewater surveillance data for COVID-19, National and regional trend insights, Interactive viral load charts, Home screen widgets for quick updates, Community infection level monitoring

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FluStar free?

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

### Is Wastewater Trends free?

Wastewater Trends is free to download, with no in-app purchases.

### Which has better reviews, FluStar or Wastewater Trends?

Wastewater Trends is rated higher. FluStar averages 2.3 out of 5 from 13 ratings, while Wastewater Trends averages 4.9 from 7 ratings.

### Do FluStar or Wastewater Trends have ads?

FluStar shows ads; Wastewater Trends does not.

### Which is updated more often, FluStar or Wastewater Trends?

FluStar ships an update fortnightly, and Wastewater Trends every 4 months. Most recently, FluStar was updated on October 14, 2026 and Wastewater Trends on October 8, 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.*