# NefroCalc vs RheumaHelper

NefroCalc and RheumaHelper both sit at 5.0 stars, but that hides the real split: 100% of NefroCalc's written reviews are positive against 59% of RheumaHelper's. NefroCalc also leads on monetization model (free vs ad-supported) and iOS requirement (8.0 vs 18.0). RheumaHelper's advantage is ratings volume (130 vs 1) and update cadence (every 2 months vs every 8 months). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NefroCalc holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: RheumaHelper has 130 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of NefroCalc's written reviews are positive against 59% of RheumaHelper's.

NefroCalc ships an update every 8 months, RheumaHelper every 2 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | NefroCalc | RheumaHelper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nefrocalc/id466002518/reviews)** | [4.8 (130 ratings)](https://appshunter.io/ios/app/rheumahelper/id581905758/reviews) |
| Number of ratings | 1 | **130** |
| Positive reviews | **100.0% of reviews** | 58.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 20 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Oscar Sosa](https://appshunter.io/developer/466002525) | [Modra Jagoda, spletno oblikovanje in razvoj mobilnih aplikacij d.o.o.](https://appshunter.io/developer/546792104) |

## What reviewers say

### NefroCalc

[App page](https://appshunter.io/ios/app/nefrocalc/id466002518)

This medical app provides quick calculations for glomerular filtration rate (GFR) using multiple established formulas. It supports CKD-EPI, MDRD, Cockcroft-Gault, and the Schwartz formula for pediatric use.

**Highlights:** GFR calculation, CKD-EPI formula, MDRD formula, Cockcroft-Gault formula, Schwartz formula for children

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RheumaHelper

[App page](https://appshunter.io/ios/app/rheumahelper/id581905758)

This medical tool offers rheumatologists a comprehensive set of disease activity calculators and classification criteria for daily use. It provides verified content based on published research and is designed for easy reference on mobile devices.

**Highlights:** Disease activity calculators, Classification criteria, Verified medical content, Award-winning tool, Easy mobile reference

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NefroCalc free?

NefroCalc is free to download, with no in-app purchases.

### Is RheumaHelper free?

RheumaHelper is free to download, with no in-app purchases.

### Which has better reviews, NefroCalc or RheumaHelper?

NefroCalc is rated higher. NefroCalc averages 5.0 out of 5 from 1 ratings, while RheumaHelper averages 4.8 from 130 ratings.

### Do NefroCalc or RheumaHelper have ads?

Neither NefroCalc nor RheumaHelper shows ads.

### Which is updated more often, NefroCalc or RheumaHelper?

NefroCalc ships an update every 8 months, and RheumaHelper every 2 months. Most recently, NefroCalc was updated on October 23, 2026 and RheumaHelper on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*