# PTH Calculator vs GuardiaApp

The clearest difference is in-app purchases: PTH Calculator at none against GuardiaApp's 2. PTH Calculator also leads on device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. GuardiaApp sells 2 one-off in-app purchases. PTH Calculator asks for nothing beyond the download.

PTH Calculator ships an update every 37 months, GuardiaApp every 29 months. The most recent releases landed on October 26, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PTH Calculator | GuardiaApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/guardiaapp/id1435582140/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 54.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 29 months** |
| Monetization | — | Free |
| Size | 25 MB | 55 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [AVANTO CREATIVE APPS S.L.](https://appshunter.io/developer/1080379340) | [Iberpixel](https://appshunter.io/developer/593664050) |

## What reviewers say

### PTH Calculator

[App page](https://appshunter.io/ios/app/pth-calculator/id1137356636)

**In-app purchases:** none


### GuardiaApp

[App page](https://appshunter.io/ios/app/guardiaapp/id1435582140)

This medical app assists healthcare professionals during shifts and patient handovers. It offers detailed information on over 130 common pathologies and includes 34 clinical tools like scales, calculators, and drug infusion calculations.

**Highlights:** Pathology clinical guides, Diagnostic tests and treatments, Clinical scales and calculators, Drug infusion rate calculations, Assistance for medical shifts, Patient handover support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suscripción 6 meses | $1.99 | one-time |
| Suscripción 12 meses | $3.99 | one-time |


## Frequently asked questions

### Is PTH Calculator free?

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

### Is GuardiaApp free?

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

### Do PTH Calculator or GuardiaApp have ads?

Neither PTH Calculator nor GuardiaApp shows ads.

### Which is updated more often, PTH Calculator or GuardiaApp?

PTH Calculator ships an update every 37 months, and GuardiaApp every 29 months. Most recently, PTH Calculator was updated on October 26, 2026 and GuardiaApp on October 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.*