eGFR vs Responsum for CKD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eGFR
Calculate glomerular filtration rate (GFR) using various formulas for different age groups. Provides information on kidney disease classification and risk minimization. Always consult a doctor for medical decisions.
- GFR calculation
- Schwartz formula for children
- CKD-EPI, MDRD, Cockcroft formulas
- Information on kidney disease
- Risk minimization guidance
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As an important parameter for assessing kidney function, the glomerular filtration rate, or GFR, is widely used. With the eGFR app, you can calculate an estimated glomerular filtration rate (eGFR) based on serum creatinine. For children and adolescents up to 18 years of age, the Schwartz formula is available. For adults, the CKD-EPI, MDRD and Cockcroft-Gault formulas can be used depending on the desired calculation. In addition, the app provides background information on the individual formulas, guidance on the interpretation of GFR values, and information on risk reduction. The eGFR app is intended solely for calculation and informational purposes and does not replace medical diagnosis, advice or treatment. Medical decisions should not be made solely on the basis of the information provided in the app. In case of health concerns, abnormal values, or before making medical decisions, medical advice should be sought.
Responsum for CKD
Access curated summaries of CKD research, treatments, and living tips vetted by experts. Connect with a patient community, store your medical information in a secure One-Sheet, and find resources like clinical trials and support groups.
- CKD article summaries
- Patient community connection
- Secure Patient One-Sheet
- Access to clinical trials
- Financial assistance resources
- Patient support groups
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Key Features: • With the Responsum for CKD app, you’ll receive a continuous stream of updated, CKD-related article summaries on every important topic, including research, treatments, and living tips - all vetted by an independent Content Advisory Council made up of leading experts. • Connect with other patients like you and join a growing patient community to share stories, advice, and experiences. • Keep everything in one place with our Patient One-Sheet, a secure, printable, and shareable form that allows you to easily store and maintain all your basic information – doctors, insurance info, medications, and their dosages, and other key data. • Find access to useful resources such as clinical trials, financial assistance, and patient support groups. "Responsum Health reminds our community members that content on our platform is not meant to be taken as medical advice; but rather helpful and informative insights to help you manage your condition and under the care of your physician. It's imperative that you work with your doctor and get their insights before making any changes, adjustments or modifications to your established care plan."
Screenshots
Verdict
The clearest difference is ratings volume: Responsum for CKD at 181 against eGFR's 4. Responsum for CKD also leads on iOS requirement (12.0 vs 16.4). On price, rating, review sentiment and update cadence 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.
On the App Store both sit at effectively the same score — 4.8 for eGFR against 4.8 for Responsum for CKD. That said, the two scores are not equally well evidenced: Responsum for CKD has 181 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
eGFR ships an update fortnightly, Responsum for CKD every 3 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | eGFR | Responsum for CKD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) | 4.8 (181 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 181 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 66 MB |
| Age rating | 17+ | 17+ |
| Developer | Christian Schramm | Responsum Health |
Customer experience
eGFR
Responsum for CKD
In-app purchases
eGFR
No in-app purchases
Responsum for CKD
No in-app purchases








