PneumoRecs VaxAdvisor vs ClinCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
ClinCalc
This medical app assists in calculating daily energy and protein requirements based on user height and weight. It also incorporates age-specific calculations for comprehensive nutritional assessment.
- Energy needs calculation
- Protein needs calculation
- Height and weight input
- Age-based calculations
- Nutritional assessment tool
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This is an app to help calculate energy and protein needs by utilizing height and weight. Also includes additional calculations based utilizing age.
Screenshots
Verdict
The clearest difference is rating: ClinCalc at 5.0 against PneumoRecs VaxAdvisor's 3.4. ClinCalc also leads on update cadence (monthly vs every 3 months). PneumoRecs VaxAdvisor's advantage is ratings volume (60 vs 3). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ClinCalc holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: PneumoRecs VaxAdvisor has 60 ratings behind it against 3, so its average is the more settled of the two.
PneumoRecs VaxAdvisor ships an update every 3 months, ClinCalc monthly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | PneumoRecs VaxAdvisor | ClinCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (60 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 26.9% of reviews | — |
| Number of ratings | 60 — better | 3 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Centers For Disease Control and Prevention | Peter Weiss |
Customer experience
PneumoRecs VaxAdvisor
ClinCalc
In-app purchases
PneumoRecs VaxAdvisor
No in-app purchases
ClinCalc
No in-app purchases
Questions
Is PneumoRecs VaxAdvisor free?
Is ClinCalc free?
Which has better reviews, PneumoRecs VaxAdvisor or ClinCalc?
Do PneumoRecs VaxAdvisor or ClinCalc have ads?
Which is updated more often, PneumoRecs VaxAdvisor or ClinCalc?
Other comparisons
