# Thrombosis vs SPIRO

The clearest difference is review sentiment: Thrombosis at 75% against SPIRO's 0%. Thrombosis also leads on price (Free vs $3.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

Thrombosis is free to download; SPIRO costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thrombosis ships an update every 5 months, SPIRO every 7 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Thrombosis | SPIRO |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/thrombosis/id728181432/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | **Free** | Paid |
| Size | 36 MB | 125 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Thrombosis Canada](https://appshunter.io/developer/1098720492) | [Universite Laval](https://appshunter.io/developer/386592978) |

## What reviewers say

### Thrombosis

[App page](https://appshunter.io/ios/app/thrombosis/id728181432)

Provides healthcare professionals with up-to-date clinical tools and practice guidelines for managing thrombosis. Access interactive diagnostic aids, comprehensive treatment guides, and patient education materials.

**Highlights:** Interactive clinical tools, Comprehensive clinical guides, Patient education resources, User-friendly interface, Regular updates, Offline access

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

**In-app purchases:** none


### SPIRO

[App page](https://appshunter.io/ios/app/spiro/id1135982423)

This medical app assists healthcare professionals and students in interpreting spirometry tests. It provides diagnostic and treatment suggestions based on entered data and offers access to educational materials and respiratory health guidelines.

**Highlights:** Interpret spirometry tests, Diagnostic suggestions, Treatment suggestions, Access respiratory guidelines, Educational material, Patient follow-up tool

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thrombosis free?

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

### Is SPIRO free?

SPIRO costs $3.99, with no in-app purchases.

### Do Thrombosis or SPIRO have ads?

Neither Thrombosis nor SPIRO shows ads.

### Which is updated more often, Thrombosis or SPIRO?

Thrombosis ships an update every 5 months, and SPIRO every 7 months. Most recently, Thrombosis was updated on October 8, 2026 and SPIRO on October 15, 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.*