# Rad Onc Calc vs RSS Events

The clearest difference is update cadence: Rad Onc Calc at every 6 weeks against RSS Events's every 12 months. Rad Onc Calc also leads on ratings volume (12 vs 3). RSS Events's advantage is rating (5.0 vs 4.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RSS Events holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 12 and 3 respectively.

Rad Onc Calc ships an update every 6 weeks, RSS Events every 12 months. The most recent releases landed on October 4, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Rad Onc Calc | RSS Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (12 ratings)](https://appshunter.io/ios/app/rad-onc-calc/id1494077153/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rss-events/id1669050105/reviews)** |
| Number of ratings | **12** | 3 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 12 months |
| Monetization | Free | Free |
| Size | 57 MB | 63 MB |
| Requires iOS | 14.0 | 14 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Matthew Culbert](https://appshunter.io/developer/1435398886) | [The Radiosurgery Society](https://appshunter.io/developer/1669050257) |

## What reviewers say

### Rad Onc Calc

[App page](https://appshunter.io/ios/app/rad-onc-calc/id1494077153)

A radiation oncology calculator and reference tool for medical professionals. It provides quick access to essential calculations and treatment constraints.

**Highlights:** Radiation oncology calculations, Treatment constraints reference, Quick access to essential data, Comprehensive tool for professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### RSS Events

[App page](https://appshunter.io/ios/app/rss-events/id1669050105)

Access conference schedules, speaker details, and exhibitor information. Enhance your learning by taking notes directly on presentation slides and posters. Connect with attendees and colleagues through in-app messaging and social sharing features.

**Highlights:** View conference schedule, Access speaker and exhibitor details, Take notes on presentation slides, Draw directly on slides, In-app messaging, Share information with attendees

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rad Onc Calc free?

Rad Onc Calc is free to download, with no in-app purchases.

### Is RSS Events free?

RSS Events is free to download, with no in-app purchases.

### Which has better reviews, Rad Onc Calc or RSS Events?

RSS Events is rated higher. Rad Onc Calc averages 4.6 out of 5 from 12 ratings, while RSS Events averages 5.0 from 3 ratings.

### Do Rad Onc Calc or RSS Events have ads?

Neither Rad Onc Calc nor RSS Events shows ads.

### Which is updated more often, Rad Onc Calc or RSS Events?

Rad Onc Calc ships an update every 6 weeks, and RSS Events every 12 months. Most recently, Rad Onc Calc was updated on October 4, 2026 and RSS Events 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.*