Comparison

ZYRTEC® ALLERGYCAST® vs FluStar

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

Head to head
About

ZYRTEC® ALLERGYCAST®

This app provides personalized allergy forecasts and pollen counts based on local data like pollen, air quality, and weather. Track your symptoms to receive daily predictions and multi-day forecasts, helping you manage seasonal allergies effectively.

Highlights
  • Personalized allergy impact score
  • Daily symptom severity predictions
  • Multi-day pollen and weather forecasts
  • Interactive pollen and air quality maps
  • Symptom tracker and Allergy Profile
  • Personalized allergy insights
  • Exclusive ZYRTEC savings
Features
Read full description

The ZYRTEC® AllergyCast® app is your go-to allergy tracker and pollen forecast tool, eliminating the guesswork in managing allergies. Using local data like pollen count, air quality and weather, it provides a personalized allergy impact score, predicting how your seasonal allergies will make you feel each day. Think of it as a "real-feel" forecast for your allergies! Wondering about today's pollen count? Get that and more at your fingertips with AllergyCast®. Beyond just pollen counts, the app offers personalized daily symptom severity predictions. Sign in, track your symptoms, and unlock personalized predictions that get more accurate over time. When you start using the app, you'll receive a local pollen forecast and a generalized symptom severity prediction. Consistently log your symptoms for more personalized predictions. Each day you’ll receive daily allergy symptom severity predictions and multi-day forecasts, factoring in your tracked symptoms and local weather. Did AllergyCast® predict a "Mild" day? Enjoy less sniffling. "Severe" symptoms predicted? You may want to be prepared. AllergyCast® App features include: - Multi-day forecasts for symptom severity predictions, pollen, weather, and air quality based on your current location. - Interactive pollen & air quality maps to see the pollen and air quality levels along with the top allergens in your area. - An enhanced allergy symptom tracker & personalized Allergy Profile. - Personalized allergy insights to learn which specific pollens may be triggers for your outdoor allergies. - Trends based on your tracked symptoms, including a personalized Allergy Profile. - Exclusive savings, coupons & offers for ZYRTEC® products.

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.

Screenshots

ZYRTEC® ALLERGYCAST®4 screens
FluStar4 screens

Verdict

The call

The clearest difference is rating: ZYRTEC® ALLERGYCAST® at 4.2 against FluStar's 2.3. ZYRTEC® ALLERGYCAST® also leads on review sentiment (40% vs 0%) and ads (none vs shown). FluStar's advantage is update cadence (fortnightly vs every 2 months) and monetization model (ad-supported vs free with in-app purchases). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ZYRTEC® ALLERGYCAST® holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: ZYRTEC® ALLERGYCAST® has 544 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 40% of ZYRTEC® ALLERGYCAST®'s written reviews are positive against 0% of FluStar's.

UpkeepUpdate frequency

ZYRTEC® ALLERGYCAST® ships an update every 2 months, FluStar fortnightly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
ZYRTEC® ALLERGYCAST® versus FluStar: the parameters behind the verdict, then further details
ParameterZYRTEC® ALLERGYCAST®FluStar
PriceFreeFree
Rating4.2 (544 ratings) — better2.3 (13 ratings)
Positive reviews40.2% of reviews — better0.0% of reviews
Number of ratings544 — better13
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size9 MB22 MB
Age rating17+17+
DeveloperMcNeil-PPC, IncIQVIA Inc.

Customer experience

ZYRTEC® ALLERGYCAST®

All ratings544 ratings
Positive78.9%
Neutral4.6%
Negative16.5%
Written reviews102 reviews
Positive40.2%
Neutral10.8%
Negative49.0%

FluStar

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

In-app purchases

None

ZYRTEC® ALLERGYCAST®

No in-app purchases

None

FluStar

No in-app purchases

Questions

Is ZYRTEC® ALLERGYCAST® free?
ZYRTEC® ALLERGYCAST® is free to download, with no in-app purchases.
Is FluStar free?
FluStar is free to download, with no in-app purchases.
Which has better reviews, ZYRTEC® ALLERGYCAST® or FluStar?
ZYRTEC® ALLERGYCAST® is rated higher. ZYRTEC® ALLERGYCAST® averages 4.2 out of 5 from 544 ratings, while FluStar averages 2.3 from 13 ratings.
Do ZYRTEC® ALLERGYCAST® or FluStar have ads?
FluStar shows ads; ZYRTEC® ALLERGYCAST® does not.
Which is updated more often, ZYRTEC® ALLERGYCAST® or FluStar?
ZYRTEC® ALLERGYCAST® ships an update every 2 months, and FluStar fortnightly. Most recently, ZYRTEC® ALLERGYCAST® was updated on October 16, 2026 and FluStar on October 14, 2026.

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