RxCalc vs PneumoRecs VaxAdvisor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RxCalc
This medical app provides essential pharmacokinetic calculations for healthcare professionals. It offers a fast interface and comprehensive results to streamline dosing regimen design and patient-specific adjustments for medications like vancomycin and aminoglycosides.
- Pharmacokinetic calculations
- Vancomycin dosing
- Aminoglycoside dosing
- Post-level adjustments
- Fast interface
- Comprehensive results
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RxCalc puts commonly used pharmacokinetic calculations in the palm of your hand with your iPhone or iPod Touch. The fast interface and comprehensive results help you spend less time crunching numbers and more time working on other, more important issues. This tool is designed to help pharmacists, and physicians, quickly perform the most commonly used pharmacokinetic calculations. Calculations for designing new vancomycin and aminoglycoside dosing regimens as well as patient specific post-level adjustments to current dosing regimens are included.
PneumoRecs VaxAdvisor
This application offers personalized pneumococcal vaccination guidance based on patient age, vaccination history, and medical conditions. It aligns with the Advisory Committee on Immunization Practices' recommendations for U.S. immunization schedules.
- Patient-specific vaccination recommendations
- Age-based guidance
- Vaccination history tracking
- Underlying medical condition prompts
- U.S. immunization schedule compliance
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This is the PneumoRecs VaxAdvisor App created by the Centers for Disease Control and Prevention (CDC) in collaboration with the Georgia Tech Research Institute. PneumoRecs VaxAdvisor provides patient-specific pneumococcal vaccination guidance consistent with the pneumococcal vaccination recommendations of the Advisory Committee on Immunization Practices. Vaccination providers enter a patient’s age and respond to prompts about the patient’s pneumococcal vaccination history and underlying medical conditions. The app then displays patient-specific pneumococcal vaccination recommendations consistent with the recommended U.S. immunization schedule.
Screenshots
Verdict
The clearest difference is price: PneumoRecs VaxAdvisor at Free against RxCalc's $2.99. PneumoRecs VaxAdvisor also leads on update cadence (every 3 months vs every 25 months) and ratings volume (60 vs 5). RxCalc's advantage is rating (4.6 vs 3.4) and review sentiment (53% vs 27%). On ads, 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
PneumoRecs VaxAdvisor is free to download; RxCalc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RxCalc holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: PneumoRecs VaxAdvisor has 60 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 53% of RxCalc's written reviews are positive against 27% of PneumoRecs VaxAdvisor's.
RxCalc ships an update every 25 months, PneumoRecs VaxAdvisor every 3 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | RxCalc | PneumoRecs VaxAdvisor |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.6 (5 ratings) — better | 3.4 (60 ratings) |
| Positive reviews | 53.3% of reviews — better | 26.9% of reviews |
| Number of ratings | 5 | 60 — better |
| Update frequency | Every 25 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 12+ | 17+ |
| Developer | Rob Fahrni | Centers For Disease Control and Prevention |
Customer experience
RxCalc
PneumoRecs VaxAdvisor
In-app purchases
RxCalc
No in-app purchases
PneumoRecs VaxAdvisor
No in-app purchases
Questions
Is RxCalc free?
Is PneumoRecs VaxAdvisor free?
Which has better reviews, RxCalc or PneumoRecs VaxAdvisor?
Do RxCalc or PneumoRecs VaxAdvisor have ads?
Which is updated more often, RxCalc or PneumoRecs VaxAdvisor?
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