VTE Calc vs Embolus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VTE Calc
This medical app provides quick access to common scoring systems for calculating the risk of deep venous thrombosis (DVT) or pulmonary embolism (PE). It includes Wells' scores for DVT and PE, the PERC score, and a built-in creatinine clearance calculator for administering low molecular weight heparins.
- Wells' score for DVT
- Wells' score for PE
- PERC score
- Creatinine clearance calculator
- Risk assessment tools
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VTE Calc gives you immediate access to the most commonly used scoring systems for calculating the risk of deep venous thrombosis (DVT) or pulmonary embolism (PE). It includes the Wells' scores for DVT and PE and well as the PERC score. If you need to administer low molecular weight heparins, VTE Calc has a creatinine clearance calculator built in.
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 update cadence: VTE Calc at every 2 days against Embolus's every 2 months. VTE Calc also leads on monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 18.0). Embolus's advantage is ratings volume (16 vs 4). On price, rating, ads and in-app purchases 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. VTE Calc sells 1 one-off in-app purchase and Embolus sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for VTE Calc against 4.7 for Embolus. Both are backed by a comparable volume of ratings — 4 and 16 respectively.
VTE Calc ships an update every 2 days, Embolus every 2 months. The most recent releases landed on August 15, 2026 and September 7, 2026 respectively.
| Parameter | VTE Calc | Embolus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 4.7 (16 ratings) |
| Positive reviews | — | 71.4% of reviews |
| Number of ratings | 4 | 16 — better |
| Update frequency | Every 2 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 20 MB | 43 MB |
| Age rating | 12+ | 17+ |
| Developer | Lindum Medical Ltd | Sang Medicine Ltd |
Customer experience
VTE Calc
Embolus
In-app purchases
VTE Calc
- VTE Calc - remove advertising$0.99
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
