# Fluid Calculator vs NeoCardioLab

The clearest difference is device support: Fluid Calculator at 5 against NeoCardioLab's 3. Fluid Calculator also leads on iOS requirement (11.0 vs 13.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

Fluid Calculator ships an update every 6 days, NeoCardioLab weekly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Fluid Calculator | NeoCardioLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/neocardiolab/id1590210400/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free | Free |
| Size | 9 MB | 35 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Elliot Williams](https://appshunter.io/developer/991432050) | [gabriel altit](https://appshunter.io/developer/1590210402) |

## What reviewers say

### Fluid Calculator

[App page](https://appshunter.io/ios/app/fluid-calculator/id1579638823)

This app offers a straightforward and elegantly designed calculator experience. It focuses on core functionality, ensuring ease of use for anyone, anywhere. Enjoy a fluid interface with a unique visual effect that enhances the user experience.

**Highlights:** Basic calculation functionality, Simple and intuitive design, Fluid user interface, Parallax visual effect, Ad-free experience, Works offline

**In-app purchases:** none


### NeoCardioLab

[App page](https://appshunter.io/ios/app/neocardiolab/id1590210400)

This app offers extensive educational content on neonatal hemodynamics and cardiovascular research. It provides learning modules, video clips, and an atlas for understanding echocardiography, POCUS, and congenital heart defects.

**Highlights:** Neonatal hemodynamics education, Echocardiography (2D & 3D) modules, Targeted Neonatal Echocardiography (TnECHO), Point of Care Ultrasound (POCUS) training, Near Infrared Spectroscopy (NIRS) modules, Congenital heart defect resources, Research updates and webinars

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fluid Calculator free?

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

### Is NeoCardioLab free?

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

### Do Fluid Calculator or NeoCardioLab have ads?

Neither Fluid Calculator nor NeoCardioLab shows ads.

### Which is updated more often, Fluid Calculator or NeoCardioLab?

Fluid Calculator ships an update every 6 days, and NeoCardioLab weekly. Most recently, Fluid Calculator was updated on November 7, 2026 and NeoCardioLab 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.*