Gout Central vs Valve PPM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gout Central
Manage gout and protect your kidneys with this app. It offers tools to track vital health metrics, understand the connection between kidney disease and uric acid, and share reports with your doctor. Access comprehensive information on gout prevention and treatment.
- Gout Flare Tracker
- Health Metrics Tracking (weight, BP, eGFR, uric acid)
- Kidney Disease & Uric Acid Link Explanation
- Healthcare Provider Reporting
- Medical Information on Gout
- Medication Tracking & Reminders
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“Gout Central" empowers patients with the most essential tools and information for controlling gout and protecting their kidneys. Guidance is provided on the optimal use of nutrition, lifestyle, and medication for the prevention and treatment of gout flares. Tools such as the Gout Flare Tracker help both the patient and doctor devise the best treatment plan based on individual needs. Includes easy-to-use tools to track your weight, blood pressure, eGFR, albumin-to-creatinine ratio, uric acid, and gout flare history. Helps you understand the link between kidney disease, high uric acid, and gout. Allows you to send reports about your gout flares, weight, and blood pressure to your healthcare provider or caretaker with the push of a button. Provides helpful medical information about gout and its risk factors, symptoms, treatments, and much more. Organized by: My Profile My Health Tools (including the Weight Tracker, Blood Pressure Tracker, eGFR Tracker, Albumin-to-Creatinine Ratio Tracker, Uric Acid Tracker, Gout Flare Tracker, Medicine Tracker, and Medicine Reminder Alerts) My Diagnosis My Doctor Appointments My Medications Questions Nutritional Information The National Kidney Foundation is the leading organization in the US dedicated to the awareness, prevention and treatment of kidney disease for hundreds of thousands of healthcare professionals, millions of patients and their families and tens of millions of Americans at risk. Learn more at www.kidney.org
Valve PPM
This tool assists medical professionals in assessing implanted prosthetic cardiac valves. It offers guidance for checking existing valve function and selecting the optimal valve before implantation based on patient and prosthesis parameters.
- Assess implanted valve function
- Select optimal valve before implantation
- Analyze patient and prosthesis parameters
- Identify potential patient-prosthesis mismatch
- Determine intrinsic prosthesis dysfunction
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Valve PPM is an innovative mobile tool developed to support echocardiography professionals in their effort of assessing the functionality of implanted prosthetic cardiac valves. The application provides guidelines for assessing an already implanted valve (Check Valve Function) and for choosing a valve before implantation (Optimal Valve Selector). The algorithms behind the App have been derived after an extensive research of the published materials on the aortic and mitral prosthetic valve assessment. - Check Valve Function After selecting a particular valve type, the patient characteristics (weight/height) and the prosthesis actual parameters (peak velocity, mean gradient, VTI prosthesis, VTI LVOT and LVOTd), Valve PPM will provide the user with an answer regarding the normal function of the valve, the potential patient prosthesis mismatch or the intrinsic prosthesis dysfunction. - Optimal Valve Selector The user will be required to select a valve position (aortic/mitral) and the patient characteristics (weight/height) and Valve PPM will instantly indicate the minimum Effective Orifice Area (EOA) in order to avoid Patient Prosthesis Mismatch (PPM).
Screenshots
Verdict
The clearest difference is review sentiment: Valve PPM at 100% against Gout Central's 0%. Valve PPM also leads on rating (5.0 vs 4.3). Gout Central's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (9.0 vs 15.1). On price, ratings volume, ads and in-app purchases 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.
Valve PPM holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 0% of Gout Central's written reviews are positive against 100% of Valve PPM's.
Gout Central ships an update fortnightly, Valve PPM every 2 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Gout Central | Valve PPM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 3 |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 37 MB |
| Age rating | 17+ | 12+ |
| Developer | National Kidney Foundation | KRUTSCH |
Customer experience
Gout Central
Valve PPM
In-app purchases
Gout Central
No in-app purchases
Valve PPM
No in-app purchases








