# NKF KDOQI vs CRRT_Calc

The clearest difference is iOS requirement: NKF KDOQI at 13.0 against CRRT_Calc's 15.6. On price, rating, ratings volume and update cadence there is nothing between them.

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 — 5.0 for NKF KDOQI against 5.0 for CRRT_Calc. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

NKF KDOQI ships an update every 11 months, CRRT_Calc every 8 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | NKF KDOQI | CRRT_Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/nkf-kdoqi/id1514625642/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/crrt-calc/id1540765253/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 67 MB | 19 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [National Kidney Foundation](https://appshunter.io/developer/418198855) | [Chien-hung Lu](https://appshunter.io/developer/1540765255) |

## What reviewers say

### NKF KDOQI

[App page](https://appshunter.io/ios/app/nkf-kdoqi/id1514625642)

Access comprehensive, evidence-based recommendations for diagnosing and treating kidney disease. These guidelines aim to improve clinical practice and patient outcomes worldwide.

**Highlights:** Kidney disease diagnosis, Treatment recommendations, Evidence-based guidelines, Clinical practice improvement, Patient care decision support

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

**In-app purchases:** none


### CRRT_Calc

[App page](https://appshunter.io/ios/app/crrt-calc/id1540765253)

This application assists clinicians in managing Continuous Renal Replacement Therapy (CRRT). It supports four CRRT modalities and allows for quick calculations of dose, filtration fraction, and dilution factor.

**Highlights:** CRRT management, Supports four CRRT modalities, CVVH, CVVHDF, CVVHD, SCUF, Quick dose calculation, Filtration fraction calculation, Dilution factor calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is NKF KDOQI free?

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

### Is CRRT_Calc free?

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

### Which has better reviews, NKF KDOQI or CRRT_Calc?

NKF KDOQI and CRRT_Calc are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do NKF KDOQI or CRRT_Calc have ads?

Neither NKF KDOQI nor CRRT_Calc shows ads.

### Which is updated more often, NKF KDOQI or CRRT_Calc?

NKF KDOQI ships an update every 11 months, and CRRT_Calc every 8 months. Most recently, NKF KDOQI was updated on November 3, 2026 and CRRT_Calc on November 3, 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.*