ONCOassist vs Embolus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ONCOassist
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.
- NCCN Treatment Protocols
- Adjuvant Survival Rate Calculators
- Medical Formula Calculators
- CTCAE Toxicity Criteria
- AJCC TNM Staging
- Prognostic Scores
- Oncology Drug Information
- Drug Interaction Checker
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Please note: This application, as a decision-support aid, is to be used by a practicing healthcare professional(“HCP”) and does not replace clinical judgement. It is not designed for use by patients and does not replace the advice of a doctor. ONCOassist is a comprehensive suite of decision support tools developed by oncology professionals, for oncology professionals. It includes a range of breakthrough tools designed to manage patient care effectively. Let's take a closer look at some of the features available: • NCCN Treatment Protocols: Developed in collaboration with the NCCN, this tool provides information on regimens taken from the NCCN template database. • Adjuvant Tools: These tools offer 5 and 10-year overall survival rates for patients with and without chemotherapy in an adjuvant setting. Breast cancer, colon cancer, and GIST tools are among the many adjuvant decision support tools available. • Useful formulas: Body Surface Area, Chemotherapy Dose Calculator, QTc, ECOG Performance Score, Khorana Score, MASCC Risk Index, and many more are included. These calculators simplify medical calculations and include frequently needed conversions and dosage calculations. • Common Toxicity Criteria for Adverse Events (CTCAE v4.0 & 5.0): This tool provides a standardized classification of adverse effects of drugs used in cancer therapy. CTCAE versions 5.0 and 4.0 are available in an easy-to-use and interactive format. • AJCC TNM staging: The tool provides criteria for every malignancy and includes the AJCC 7th, 8th, and 9th edition staging criteria. • Prognostic Scores: This tool offers over 17 prognostic scores for a range of specialties. It helps with prognostication, risk stratification, and determining eligibility for specific treatments or clinical trials. • Drug info section: Over 200 oncology drugs are available in an easy-to-use and interactive format. • Drug interaction checker: This tool helps users quickly check for potential drug interactions. • IO toxicity management tool: This tool is designed to manage immune-related adverse events. • ONCOnews: From breaking news to in-depth analysis, ONCOnews brings together all oncology news sources in one place. • ONCOvideos: This offers access to the most recent videos from Oncology Spotlight, which provides insights into the experiences of oncology professionals. Additionally, users can watch OncoAlert and Oncology Brother videos. ONCOassist offers oncology professionals the following benefits: Saves Time Oncology professionals no longer waste time searching through the internet for safe validated information to aid them with their decision making, all of the tools and information they need is available within ONCOassist and is available without the need for internet access. Improves quality of care ONCOassist promotes the use of evidence-based medicine. It is also the only CE approved oncology app on the market. Helps Empower Patients Adjuvant decision support tools contain patient-friendly information to allow for a more collaborative decision-making process. Regularly updating ONCOassist will be updated regularly with new prognostic tools and calculators. We will listen to your feedback and update accordingly. Email us at any time using feedback@oncoassist.com. ONCOassist is regulated by the Irish Health Products Regulatory Authority and is CE marked for conformance as a medical device.
Embolus
This app provides clinical case studies and data interpretation exercises focused on laboratory haemostasis. It's designed to test and improve your knowledge for postgraduate Haematology exams and offers realistic patient and lab data.
- 70 clinical cases
- 6 key haemostasis areas
- Realistic patient data
- Lab data interpretation
- Exam question familiarization
- Progress tracking
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Embolus originates from the popular website, Practical-Haemostasis.com, and is our second Haemostasis product. See sangmedicine.com for additional information. The app offers clinical cases and data interpretation exercises in laboratory haemostasis and is designed to both assess and reinforce your knowledge in this area and in addition to assist with your preparations for post-graduate examinations in Haematology. Embolus is intended for doctors in haematology training programmes, laboratory staff and anyone with an interest in laboratory haemostasis. #FEATURES# STUDY 70 different cases addressing 6 key areas of Haemostasis: - Screening Tests - Factor Assays - Genetic Tests - Platelet Function Tests - Thrombophilia Tests - Miscellaneous Tests EXPLORE realistic patient and laboratory data FAMILIARISE yourself with exam question format TRACK your progress and highlight areas that you feel require additional reading/review
Screenshots
Verdict
The clearest difference is in-app purchases: ONCOassist at none against Embolus's 8. ONCOassist also leads on review sentiment (100% vs 71%) and update cadence (every 10 days vs every 2 months). Embolus's advantage is ads (none vs shown). On price, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Embolus sells 8 one-off in-app purchases. ONCOassist asks for nothing beyond the download.
ONCOassist holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: ONCOassist has 115 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 100% of ONCOassist's written reviews are positive against 71% of Embolus's.
ONCOassist ships an update every 10 days, Embolus every 2 months. The most recent releases landed on September 19, 2026 and September 7, 2026 respectively.
| Parameter | ONCOassist | Embolus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (115 ratings) — better | 4.7 (16 ratings) |
| Positive reviews | 100.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 115 — better | 16 |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 244 MB | 43 MB |
| Age rating | 17+ | 17+ |
| Developer | Portable Medical Technology Ltd | Sang Medicine Ltd |
Customer experience
ONCOassist
Embolus
Bugs and requests
ONCOassist
Requested features
3 requests- Radiation oncology topics
- Option in Spanish
- Russian language
Embolus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ONCOassist
No in-app purchases
Embolus
- Screening Tests$1.99
- Factor Assays$1.99
- Platelet Function Tests$1.99
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- Genetic Tests$1.99
- Thrombophilia Tests$1.99
- Miscellaneous Tests$1.99
- Cloud Sync$1.99
- Haemostasis$9.99









