# MC Authentication App vs Radiology References

The clearest difference is in-app purchases: MC Authentication App at none against Radiology References's 4. MC Authentication App also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 months). On price there is nothing between them.

Both are free to download. Radiology References sells 4 in-app purchases, starting at $1.99 per 7 days. MC Authentication App asks for nothing beyond the download.

MC Authentication App ships an update every 3 days, Radiology References every 5 months. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | MC Authentication App | Radiology References |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 months |
| Monetization | Free | — |
| Size | 14 MB | 19 MB |
| Requires iOS | **10.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Advanced Data Systems Corporation](https://appshunter.io/developer/1122048132) | [HVALABS, LLC](https://appshunter.io/developer/1875666107) |

## What reviewers say

### MC Authentication App

[App page](https://appshunter.io/ios/app/mc-authentication-app/id1350534408)

This native mobile application works with a cloud-based healthcare platform to provide secure authentication for healthcare providers. Users register and validate their device using One-Time Passwords (OTP) to authenticate activities.

**Highlights:** Native iOS application, Secure OTP validation, Device registration, Activity authentication, Works with Medics Cloud

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💰 Earns cashback/money back
- 💸 Saves money
- 🚀 Efficient and fast
- 💡 Innovative concept

**What reviewers complain about**

- 🤔 Requires remembering to use
- ⏳ Can be time-consuming
- ⚠️ Offers vary
- ⚠️ Not all needed icons available
- ⚠️ Lots of ads

**Reported bugs**

- Bookmark functionality only
- Lots of ads

**Requested features**

- More online shopping rebates
- More icon options


### Radiology References

[App page](https://appshunter.io/ios/app/radiology-references/id6744572227)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $5.99 | per month |
| Yearly Premium | $24.99 | per year |
| Yearly Premium | $34.99 | per year |


## Frequently asked questions

### Is MC Authentication App free?

MC Authentication App is free to download, with no in-app purchases.

### Is Radiology References free?

Radiology References is free to download, with in-app purchases available.

### Do MC Authentication App or Radiology References have ads?

Radiology References shows ads; MC Authentication App does not.

### Which is updated more often, MC Authentication App or Radiology References?

MC Authentication App ships an update every 3 days, and Radiology References every 5 months. Most recently, MC Authentication App was updated on October 14, 2026 and Radiology References on September 25, 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.*