# Lanthier vs SPIRO

The clearest difference is review sentiment: Lanthier at 62% against SPIRO's 0%. Lanthier also leads on price (Free vs $3.99) and update cadence (every 2 months vs every 7 months). SPIRO's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 16.0). On ads and device support there is nothing between them.

Lanthier is free to download; SPIRO costs $3.99 up front. Lanthier sells 2 in-app purchases, starting at $19.49 per year. SPIRO asks for nothing beyond the download.

Lanthier ships an update every 2 months, SPIRO every 7 months. The most recent releases landed on September 10, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | Lanthier | SPIRO |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/lanthier/id701664895/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **61.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Subscription | **Paid** |
| Size | 70 MB | 125 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Les Éditions Formed inc.](https://appshunter.io/developer/442932971) | [Universite Laval](https://appshunter.io/developer/386592978) |

## What reviewers say

### Lanthier

[App page](https://appshunter.io/ios/app/lanthier/id701664895)

Access up-to-date internal medicine information and guidelines quickly and efficiently. This app offers a fast search function, intuitive menus, and direct links to PubMed references. It's designed for physicians, residents, and medical students to use at the bedside.

**Highlights:** Concise bedside information, Advanced search function, Intuitive menus, Direct links to PubMed, Personal note-taking, Cross-device synchronization

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lanthier - current users | $19.49 | per year |
| Lanthier - new users | $19.49 | per year |


### 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

**In-app purchases:** none


## Frequently asked questions

### Is Lanthier free?

Lanthier is free to download, with in-app purchases available.

### Is SPIRO free?

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

### Do Lanthier or SPIRO have ads?

Neither Lanthier nor SPIRO shows ads.

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

Lanthier ships an update every 2 months, and SPIRO every 7 months. Most recently, Lanthier was updated on September 10, 2026 and SPIRO on July 9, 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.*