Comparison

FluStar vs Sage Healthspan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FluStar

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
Read full description

FluSTAR provides up to date cold and flu activity information for every ZIP code in the country. If you're like most people -- catching the flu virus is something you'd rather NOT do. And if you have already come down with the flu, FluSTAR.com will provide you with information on how to help alleviate some of the symptoms caused by the influenza virus. FluSTAR.com can educate you about the Influenza virus, past flu epidemics as well as flu activity in every zip code in the United States. You will also see information on the difference between a cold and the flu. The FluSTAR system was developed to provide health care professionals and consumers with the most up to date information on the spread of the flu during the influenza season. Data for FluSTAR is gathered from different surveillance methods including RaPID Assay data, laboratory confirmation and clinical diagnosis data. Based on all of the surveillance methods, a regional as well as a national picture on influenza activity is generated.

About

Sage Healthspan

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
Read full description

Sage is your personal health companion — built to help you understand, track, and improve your wellness through real data. BLOOD TEST TRACKING Upload your blood test results and let Sage organize everything in one place. View trends over time, dive into individual biomarkers, and understand what your numbers mean with clear, easy-to-read insights. Edit your results anytime to keep your records accurate. AI-POWERED ANALYSIS Get intelligent analysis of your health data powered by AI. Sage reviews your blood work and highlights what matters most, so you can have more informed conversations with your healthcare provider. PHENOAGE BIOLOGICAL AGE Discover your biological age with PhenoAge — a science-backed calculation that uses your blood biomarkers to estimate how your body is aging compared to your calendar age. Track improvements over time as you make lifestyle changes. SUPPLEMENTS & SHOP Browse and purchase curated supplements tailored to support your health goals. Subscribe and save on the products you use regularly, and manage everything from your cart to checkout — all within the app. OFFLINE MODE Access your health data, test results, and AI analysis even without an internet connection. Sage keeps your most important information available wherever you are. SECURE SIGN-IN Sign in with Apple or email and password. Your health data is private and protected with industry-standard authentication. KEY FEATURES • Blood test result scanning and manual entry • Biomarker trend tracking with detailed history • AI-powered health analysis and insights • PhenoAge biological age calculation • Supplement shopping with subscription options • Secure Sign in with Apple support • Full offline access to your health data • Export and share your health records • Dark-mode friendly, clean interface Your health journey starts with understanding your data. Sage makes it simple.

Screenshots

FluStar4 screens
Sage Healthspan4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard7 real differences · 3 level
FluStar versus Sage Healthspan: the parameters behind the verdict, then further details
ParameterFluStarSage Healthspan
PriceFreeFree
Rating2.3 (13 ratings)4.6 (17 ratings) — better
Positive reviews0.0% of reviews70.0% of reviews — better
Number of ratings1317 — better
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size22 MB183 MB
Age rating17+17+
DeveloperIQVIA Inc.Sage Healthcare, LLC

Customer experience

FluStar

All ratings13 ratings
Positive30.8%
Neutral0.0%
Negative69.2%
Written reviews11 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Sage Healthspan

All ratings17 ratings
Positive88.2%
Neutral0.0%
Negative11.8%
Written reviews10 reviews
Positive70.0%
Neutral0.0%
Negative30.0%

In-app purchases

None

FluStar

No in-app purchases

1 purchases

Sage Healthspan

One-time1
  • Unlimited scans$9.99

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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