# GadCalc vs DoseCal

The clearest difference is update cadence: DoseCal at every 5 days against GadCalc's every 18 months. On price, ads, in-app purchases and device support there is nothing between them.

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

GadCalc ships an update every 18 months, DoseCal every 5 days. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GadCalc | DoseCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gadcalc/id1051070769/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 9 MB | 12 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [University of Wisconsin-Madison Shared Apps](https://appshunter.io/developer/908478605) | [Kyle Yee](https://appshunter.io/developer/1709716149) |

## What reviewers say

### GadCalc

[App page](https://appshunter.io/ios/app/gadcalc/id1051070769)

This medical app assists with calculating MRI contrast agent doses. It provides access to package inserts and lists standard and specific doses for FDA-approved agents. It's a convenient tool for healthcare professionals.

**Highlights:** Calculate MRI contrast agent dose, View contrast agent package inserts, Access online and offline inserts, Look up standard doses, Find University of Wisconsin specific doses

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

**In-app purchases:** none


### DoseCal

[App page](https://appshunter.io/ios/app/dosecal/id6468309583)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GadCalc free?

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

### Is DoseCal free?

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

### Do GadCalc or DoseCal have ads?

Neither GadCalc nor DoseCal shows ads.

### Which is updated more often, GadCalc or DoseCal?

GadCalc ships an update every 18 months, and DoseCal every 5 days. Most recently, GadCalc was updated on September 29, 2026 and DoseCal on October 7, 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.*