# PRN Graph vs Rx whizz

The clearest difference is in-app purchases: PRN Graph at none against Rx whizz's 3. Rx whizz's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rx whizz sells 3 in-app purchases, starting at $8.99 per month. PRN Graph asks for nothing beyond the download.

PRN Graph ships an update every 3 months, Rx whizz every 3 weeks. The most recent releases landed on September 8, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | PRN Graph | Rx whizz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/rx-whizz/id995343512/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 310 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Glamorous Goat B.V.](https://appshunter.io/developer/843276618) | [RX-Whizz B.V.](https://appshunter.io/developer/1542251366) |

## What reviewers say

### PRN Graph

[App page](https://appshunter.io/ios/app/prn-graph/id843276615)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rx whizz

[App page](https://appshunter.io/ios/app/rx-whizz/id995343512)

This app allows authorized healthcare professionals to quickly and securely write and send legally compliant prescriptions from any location. It stores patient and medication data locally for easy access and privacy. Prescriptions can be sent via email to patients, assistants, or pharmacies.

**Highlights:** Write and send prescriptions globally, Legally compliant prescription generation, Secure local data storage, Patient and medication history, Quick data entry with auto-suggestions, Email prescription delivery

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RX-Whizz basic abonnement | $8.99 | per month |
| RX-Whizz basic (jaarlijks) | $99.99 | per year |
| gMail integration RX-Whizz | $11.99 | one-time |


## Frequently asked questions

### Is PRN Graph free?

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

### Is Rx whizz free?

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

### Do PRN Graph or Rx whizz have ads?

Neither PRN Graph nor Rx whizz shows ads.

### Which is updated more often, PRN Graph or Rx whizz?

PRN Graph ships an update every 3 months, and Rx whizz every 3 weeks. Most recently, PRN Graph was updated on September 8, 2026 and Rx whizz on September 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.*