# iDoctus vs NephroCalc™

The clearest difference is price: iDoctus at Free against NephroCalc™'s $3.99. iDoctus also leads on update cadence (weekly vs every 10 months) and ratings volume (41 vs 1). NephroCalc™'s advantage is rating (5.0 vs 4.8) and chart position (#168 vs unranked). On ads, in-app purchases and device support there is nothing between them.

iDoctus is free to download; NephroCalc™ costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NephroCalc™ holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: iDoctus has 41 ratings behind it against 1, so its average is the more settled of the two.

iDoctus ships an update weekly, NephroCalc™ every 10 months. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | iDoctus | NephroCalc™ |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.8 (41 ratings)](https://appshunter.io/ios/app/idoctus/id530457100/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nephrocalc/id573215712/reviews)** |
| Number of ratings | **41** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#168** |
| Size | 177 MB | 24 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [iDoctus](https://appshunter.io/developer/530457103) | [ScyMed, Inc](https://appshunter.io/developer/545140733) |

## What reviewers say

### iDoctus

[App page](https://appshunter.io/ios/app/idoctus/id530457100)

This medical reference tool provides doctors with quick access to drug information, interaction checkers, and clinical calculators. It aims to improve daily practice efficiency and patient safety with up-to-date, scientifically verified content.

**Highlights:** Medical and pharmacological reference, Drug interaction checker, Clinical calculators, Scientific updates, Specialized knowledge centers, Offline access

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

**In-app purchases:** none


### NephroCalc™

[App page](https://appshunter.io/ios/app/nephrocalc/id573215712)

**Currently charting:** #168 Top Paid · Medical (US App Store)

This medical calculator app provides over 100 essential formulas and equations for assessing patients with kidney disease and acid-base disorders. It features innovative Master panels for combined calculations and a physician-friendly interface for efficient patient data management.

**Highlights:** Over 100 renal and acid-base equations, Innovative MultiCalx™ Master panels, Customizable mCalx™ DARK calculator, Physician-friendly intuitive interface, Automatic unit conversion, Color-coded normal-abnormal outputs, Fully referenced clinical data

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

**In-app purchases:** none


## Frequently asked questions

### Is iDoctus free?

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

### Is NephroCalc™ free?

NephroCalc™ costs $3.99, with no in-app purchases.

### Which has better reviews, iDoctus or NephroCalc™?

NephroCalc™ is rated higher. iDoctus averages 4.8 out of 5 from 41 ratings, while NephroCalc™ averages 5.0 from 1 ratings.

### Do iDoctus or NephroCalc™ have ads?

Neither iDoctus nor NephroCalc™ shows ads.

### Which is updated more often, iDoctus or NephroCalc™?

iDoctus ships an update weekly, and NephroCalc™ every 10 months. Most recently, iDoctus was updated on October 23, 2026 and NephroCalc™ on October 7, 2026.

---

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