# RadOnc Reference vs ESMO Interactive Guidelines

The clearest difference is update cadence: RadOnc Reference at every 2 months against ESMO Interactive Guidelines's every 6 months. RadOnc Reference also leads on iOS requirement (6.0 vs 12.0). ESMO Interactive Guidelines's advantage is ratings volume (150 vs 45). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for RadOnc Reference against 4.8 for ESMO Interactive Guidelines. Both are backed by a comparable volume of ratings — 45 and 150 respectively. Written reviews split almost evenly too, at 80% and 80% positive.

RadOnc Reference ships an update every 2 months, ESMO Interactive Guidelines every 6 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | RadOnc Reference | ESMO Interactive Guidelines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (45 ratings)](https://appshunter.io/ios/app/radonc-reference/id563419791/reviews) | **[4.8 (150 ratings)](https://appshunter.io/ios/app/esmo-interactive-guidelines/id1037353712/reviews)** |
| Number of ratings | 45 | **150** |
| Positive reviews | 80.0% of reviews | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 6 MB | 195 MB |
| Requires iOS | **6.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Pretesh Patel](https://appshunter.io/developer/563419794) | [European Society for Medical Oncology - ESMO](https://appshunter.io/developer/515544538) |

## What reviewers say

### RadOnc Reference

[App page](https://appshunter.io/ios/app/radonc-reference/id563419791)

A comprehensive iPhone reference tool for Radiation Oncologists, offering quick access to essential clinical information. It includes cancer staging, contouring atlases, DVH constraints, calculators, medications, and ICD-9 codes.

**Highlights:** Cancer Staging, Contouring Atlases, DVH Normal Tissue Constraints, Clinical Calculators, Prescribed Medications, Oncology ICD-9 Codes

**Features:** macOS Compatibility

**In-app purchases:** none


### ESMO Interactive Guidelines

[App page](https://appshunter.io/ios/app/esmo-interactive-guidelines/id1037353712)

Access concise, practical treatment recommendations based on the latest scientific research. This app provides interactive tools, algorithms, and calculators to support healthcare professionals in decision-making and guideline navigation.

**Highlights:** Concise treatment recommendations, Interactive decision-making tools, Treatment algorithms and calculators, Keyword search functionality, Bookmarking and note-taking, News and push notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is RadOnc Reference free?

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

### Is ESMO Interactive Guidelines free?

ESMO Interactive Guidelines is free to download, with no in-app purchases.

### Which has better reviews, RadOnc Reference or ESMO Interactive Guidelines?

ESMO Interactive Guidelines is rated higher. RadOnc Reference averages 4.7 out of 5 from 45 ratings, while ESMO Interactive Guidelines averages 4.8 from 150 ratings.

### Do RadOnc Reference or ESMO Interactive Guidelines have ads?

Neither RadOnc Reference nor ESMO Interactive Guidelines shows ads.

### Which is updated more often, RadOnc Reference or ESMO Interactive Guidelines?

RadOnc Reference ships an update every 2 months, and ESMO Interactive Guidelines every 6 months. Most recently, RadOnc Reference was updated on October 7, 2026 and ESMO Interactive Guidelines on September 30, 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.*