Comparison

FluStar vs SickPredict™

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

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.

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
Features
Read full description

SickPredict™ uses Apple Watch health trends to generate your personalized daily SickNumber™—a simple 1–10 wellness signal that may warn you up to 72 hours before you feel symptoms. Built on research from leading institutions and designed for proactive, everyday health awareness. Your SickNumber™ is personal—and improves over time. Your daily SickNumber™ • 1–4: Low risk • 5–7: Medium risk • 8–10: Elevated risk Built on real research. Studies involving 100,000+ wearable users validated the connection between wearable signals and oncoming illness. SickPredict™ puts that science on your wrist, every day. SickPredict™ learns your normal. The longer you use it, the smarter it gets. What you get: 1. Early wellness signal — up to 72 hours before symptoms appear 2. SickNumber™ calculated in real time from your Apple Watch data 3. Understands why you feel off before you do — HRV, sleep, temperature, oxygen and more 4. Personalized baseline that sharpens over time 5. Daily alerts the moment your risk level changes 6. Health trend history so you see patterns, not just numbers ________________________________________ NEW IN VERSION 3.0 — THE BIGGEST UPDATE YET Version 3.0 transforms SickPredict™ from a daily wellness score into your personal AI health intelligence system. AIM-E — Your Personal Health Agent Meet AIM-E. Ask her anything about your health trends, SickNumber™, or biometrics and get instant, personalized wellness insights in plain language. No medical jargon. No guessing. Just answers — like having a personal wellness companion available 24/7. "Why is my SickNumber elevated today?" "How has my HRV changed this week?" AIM-E reads your data and answers instantly. AIM-E is not a medical professional and does not provide medical advice or diagnosis. My Health Report — On-Demand Personalized Health Reports: One tap generates a comprehensive, personalized health report built from your key trends, risks, and recommendations — created by AIM-E from your actual biometric history. Not generic advice. Your data. Your report. Your insights. Continuous Wellness Tracking + Early Alerts: SickPredict™ now monitors your biometrics around the clock and sends early alerts the moment your risk increases — giving you an early heads up to pay closer attention to your health. Not once a day. Continuously. Smarter SickNumber™ Accuracy: The core algorithm behind your SickNumber™ has been significantly improved in v3.0 — more accurate, more responsive, and more personalized to your individual baseline than ever before. ________________________________________ Works best wearing your Apple Watch overnight and consistently throughout the day. Not a medical advice. SickPredict™ is a wellness and informational tool — not a diagnostic device. Always consult a healthcare professional for medical concerns. Requires Apple Watch + iPhone. Free 7-day trial. $9.99/month or $79.99/year after trial. Subscription auto-renews unless cancelled at least 24 hours before renewal date. Manage in iPhone Account Settings. 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. Additional Information: Visit www.SickPredict.com Terms of Use: Visit https://sickpredictapp.com/terms-of-use/

Screenshots

FluStar4 screens
SickPredict™4 screens

Verdict

The call

The clearest difference is review sentiment: SickPredict™ at 73% against FluStar's 0%. SickPredict™ also leads on rating (4.1 vs 1.7) and ads (none vs shown). FluStar's advantage is in-app purchases (none vs 2) and update cadence (fortnightly vs every 2 months). On price, ratings volume and device support 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. SickPredict™ sells 2 in-app purchases, starting at $3.99 per month. FluStar asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SickPredict™ holds the better App Store score, 4.1 against 1.7. Both are backed by a comparable volume of ratings — 25 and 32 respectively. Written reviews point the same way: 0% of FluStar's written reviews are positive against 73% of SickPredict™'s.

UpkeepUpdate frequency

FluStar ships an update fortnightly, SickPredict™ every 2 months. Both last shipped on November 3, 2026.

Scorecard7 real differences · 3 level
FluStar versus SickPredict™: the parameters behind the verdict, then further details
ParameterFluStarSickPredict™
PriceFreeFree
Rating1.7 (25 ratings)4.1 (32 ratings) — better
Positive reviews0.0% of reviews73.1% of reviews — better
Number of ratings2532 — better
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS11.0 — better15.0
Further details — not scored
Size22 MB54 MB
Age rating17+17+
DeveloperIQVIA Inc.Health Logic Global

Customer experience

FluStar

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

SickPredict™

All ratings32 ratings
Positive78.1%
Neutral0.0%
Negative21.9%
Written reviews26 reviews
Positive73.1%
Neutral0.0%
Negative26.9%

In-app purchases

None

FluStar

No in-app purchases

2 purchases

SickPredict™

Subscriptions2
  • Basic Access7 Days trial$3.991 Month
  • Basic Access7 Days trial$28.991 Year

Questions

Is FluStar free?
FluStar 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, FluStar or SickPredict™?
SickPredict™ is rated higher. FluStar averages 1.7 out of 5 from 25 ratings, while SickPredict™ averages 4.1 from 32 ratings.
Do FluStar or SickPredict™ have ads?
FluStar shows ads; SickPredict™ does not.
Which is updated more often, FluStar or SickPredict™?
FluStar ships an update fortnightly, and SickPredict™ every 2 months. Most recently, FluStar was updated on November 3, 2026 and SickPredict™ on November 3, 2026.

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