# FluStar vs Sage Healthspan

The clearest difference is review sentiment: Sage Healthspan at 70% against FluStar's 0%. Sage Healthspan also leads on rating (4.6 vs 2.3) and ads (none vs shown). FluStar's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On price, ratings volume and update cadence there is nothing between them.

Both are free to download. Sage Healthspan sells 1 one-off in-app purchase. FluStar asks for nothing beyond the download.

Sage Healthspan holds the better App Store score, 4.6 against 2.3. Both are backed by a comparable volume of ratings — 13 and 17 respectively. Written reviews point the same way: 0% of FluStar's written reviews are positive against 70% of Sage Healthspan's.

FluStar ships an update fortnightly, Sage Healthspan every 3 weeks. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FluStar | Sage Healthspan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (13 ratings)](https://appshunter.io/ios/app/flustar-flu-tracker/id1483474643/reviews) | **[4.6 (17 ratings)](https://appshunter.io/ios/app/sage-healthspan/id6504351768/reviews)** |
| Number of ratings | 13 | **17** |
| Positive reviews | 0.0% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 22 MB | 183 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [IQVIA Inc.](https://appshunter.io/developer/376388241) | [Sage Healthcare, LLC](https://appshunter.io/developer/1716412773) |

## 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


### Sage Healthspan

[App page](https://appshunter.io/ios/app/sage-healthspan/id6504351768)

Understand, track, and improve your wellness with real health data. Upload blood test results for AI analysis, discover your biological age, and manage supplements. Access your information securely, even offline.

**Highlights:** Blood test result tracking, AI-powered health analysis, Biological age calculation (PhenoAge), Supplement shopping and subscriptions, Offline mode for data access, Secure sign-in options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited scans | $9.99 | one-time |


## Frequently asked questions

### Is FluStar free?

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

### Is Sage Healthspan free?

Sage Healthspan is free to download, with in-app purchases available.

### Which has better reviews, FluStar or Sage Healthspan?

Sage Healthspan is rated higher. FluStar averages 2.3 out of 5 from 13 ratings, while Sage Healthspan averages 4.6 from 17 ratings.

### Do FluStar or Sage Healthspan have ads?

FluStar shows ads; Sage Healthspan does not.

### Which is updated more often, FluStar or Sage Healthspan?

FluStar ships an update fortnightly, and Sage Healthspan every 3 weeks. Most recently, FluStar was updated on October 14, 2026 and Sage Healthspan on October 9, 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.*