# VTE Calc vs Seizure Decision Tool

The clearest difference is in-app purchases: VTE Calc at none against Seizure Decision Tool's 1. VTE Calc also leads on update cadence (every 2 days vs every 6 weeks) and iOS requirement (9.0 vs 16). On price, ads and device support there is nothing between them.

Both are free to download. Seizure Decision Tool sells 1 one-off in-app purchase. VTE Calc asks for nothing beyond the download.

VTE Calc ships an update every 2 days, Seizure Decision Tool every 6 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | VTE Calc | Seizure Decision Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/vte-calc/id1335332895/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 weeks |
| Monetization | Free | — |
| Size | 20 MB | 0 MB |
| Requires iOS | **9.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Lindum Medical Ltd](https://appshunter.io/developer/1092857686) | [ATIF ELNIL](https://appshunter.io/developer/1886307011) |

## What reviewers say

### VTE Calc

[App page](https://appshunter.io/ios/app/vte-calc/id1335332895)

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.

**Highlights:** Wells' score for DVT, Wells' score for PE, PERC score, Creatinine clearance calculator, Risk assessment tools

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

**In-app purchases:** none


### Seizure Decision Tool

[App page](https://appshunter.io/ios/app/seizure-decision-tool/id6761344492)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Seizure Decision Tool — Full Access | $14.99 | one-time |


## Frequently asked questions

### Is VTE Calc free?

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

### Is Seizure Decision Tool free?

Seizure Decision Tool is free to download, with in-app purchases available.

### Do VTE Calc or Seizure Decision Tool have ads?

Neither VTE Calc nor Seizure Decision Tool shows ads.

### Which is updated more often, VTE Calc or Seizure Decision Tool?

VTE Calc ships an update every 2 days, and Seizure Decision Tool every 6 weeks. Most recently, VTE Calc was updated on November 6, 2026 and Seizure Decision Tool on November 2, 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.*