# ONCOassist vs Iylon

The clearest difference is ads: Iylon at none against ONCOassist's shown. Iylon also leads on iOS requirement (12.0 vs 15.6). ONCOassist's advantage is update cadence (every 10 days vs every 4 months). On price, in-app purchases and device support there is nothing between them.

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

ONCOassist ships an update every 10 days, Iylon every 4 months. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | ONCOassist | Iylon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (116 ratings)](https://appshunter.io/ios/app/oncoassist/id558299114/reviews)** | — |
| Number of ratings | **116** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 244 MB | 76 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Portable Medical Technology Ltd](https://appshunter.io/developer/558299117) | [IYLON PRECISION ONCOLOGY LLC](https://appshunter.io/developer/1554427966) |

## What reviewers say

### ONCOassist

[App page](https://appshunter.io/ios/app/oncoassist/id558299114)

This app provides oncology professionals with a comprehensive suite of decision-support tools. It offers access to treatment protocols, survival rates, medical calculators, toxicity criteria, staging information, drug details, and news, all designed to aid in patient care and save time.

**Highlights:** NCCN Treatment Protocols, Adjuvant Survival Rate Calculators, Medical Formula Calculators, CTCAE Toxicity Criteria, AJCC TNM Staging, Prognostic Scores, Oncology Drug Information, Drug Interaction Checker

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Extremely helpful app
- 👍 Very practical and useful
- 👍 Great resource for building plans
- 👍 Up-to-date information
- 👍 Life saver for clinical research

**What reviewers complain about**

- 💡 Would be better if Radiation oncology topics were included
- 💡 Would be convenient if there was an option in Spanish
- 💡 Please add Russian language

**Requested features**

- Radiation oncology topics
- Option in Spanish
- Russian language


### Iylon

[App page](https://appshunter.io/ios/app/iylon/id1554427964)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ONCOassist free?

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

### Is Iylon free?

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

### Do ONCOassist or Iylon have ads?

ONCOassist shows ads; Iylon does not.

### Which is updated more often, ONCOassist or Iylon?

ONCOassist ships an update every 10 days, and Iylon every 4 months. Most recently, ONCOassist was updated on October 16, 2026 and Iylon on October 4, 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.*