# Clinical Calculator PLUS vs Perception Key

The clearest difference is in-app purchases: Perception Key at none against Clinical Calculator PLUS's 5. Perception Key also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Clinical Calculator PLUS sells 5 in-app purchases, starting at $1.49 per year. Perception Key asks for nothing beyond the download.

## The numbers

| Metric | Clinical Calculator PLUS | Perception Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/clinical-calculator-plus/id1242209873/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Asnan Clinic EG](https://appshunter.io/developer/1727768175) |

## What reviewers say

### Clinical Calculator PLUS

[App page](https://appshunter.io/ios/app/clinical-calculator-plus/id1242209873)

Access over 350 medical calculators and scoring systems for healthcare professionals. This comprehensive tool simplifies complex formulas, providing quick and accurate results without an internet connection after initial download. It offers easy navigation and detailed information for each calculation.

**Highlights:** Over 350 medical calculators and scoring systems, Easy access to formulas via alphabetical, category, or historical lists, Built-in calculator for input processing, Detailed help information for each formula, Remembers last entered values, Offline access to content, SmartSearch for medical terms

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25% Off - Limited Time Offer | $1.49 | per year |
| 20% Off - Limited Time Offer | $1.59 | per year |
| 15% Off - Limited Time Offer | $1.69 | per year |
| ClinicalCalculator PLUS 1Y Sub | $4.99 | per year |
| Clinical Calculator PLUS™ | $4.99 | one-time |


### Perception Key

[App page](https://appshunter.io/ios/app/perception-key/id6476829247)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Clinical Calculator PLUS free?

Clinical Calculator PLUS is free to download, with in-app purchases available.

### Is Perception Key free?

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

### Do Clinical Calculator PLUS or Perception Key have ads?

Clinical Calculator PLUS shows ads; Perception Key does not.

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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.*