# ONCOassist vs Blood Components

The clearest difference is ads: Blood Components at none against ONCOassist's shown. Blood Components also leads on monetization model (free vs free with in-app purchases). ONCOassist's advantage is update cadence (every 10 days vs every 19 months). On price, review sentiment, 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, Blood Components every 19 months. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ONCOassist | Blood Components |
| --- | --- | --- |
| 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 | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 19 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 244 MB | 16 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Portable Medical Technology Ltd](https://appshunter.io/developer/558299117) | [NHS](https://appshunter.io/developer/1192687136) |

## 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


### Blood Components

[App page](https://appshunter.io/ios/app/blood-components/id1221434626)

This app provides clinicians with a summary of national guidelines for the appropriate use of blood components. It facilitates robust documentation of transfusion indications, referencing key medical guidelines.

**Highlights:** Summarizes national blood transfusion guidelines, Facilitates appropriate blood use, Enables documentation of transfusion indications, References NBTC, BSH, and NICE guidelines, Acts as a clinical reference tool

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

**In-app purchases:** none


## Frequently asked questions

### Is ONCOassist free?

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

### Is Blood Components free?

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

### Do ONCOassist or Blood Components have ads?

ONCOassist shows ads; Blood Components does not.

### Which is updated more often, ONCOassist or Blood Components?

ONCOassist ships an update every 10 days, and Blood Components every 19 months. Most recently, ONCOassist was updated on October 26, 2026 and Blood Components on October 8, 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.*