# echOpen ON vs leCanon

The clearest difference is in-app purchases: echOpen ON at none against leCanon's 2. leCanon's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. leCanon sells 2 in-app purchases, starting at $29.99 per month. echOpen ON asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | echOpen ON | leCanon |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Freemium |
| Size | 67 MB | 50 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [echopen factory](https://appshunter.io/developer/1530808488) | [iAvicenne](https://appshunter.io/developer/1852728759) |

## What reviewers say

### echOpen ON

[App page](https://appshunter.io/ios/app/echopen-on/id1664469384)

**In-app purchases:** none


### leCanon

[App page](https://appshunter.io/ios/app/lecanon/id6755232768)

This medical tool provides rapid, evidence-based syntheses of the latest research for clinicians. It helps physicians and researchers quickly access and understand the most relevant and high-quality studies to inform clinical decisions and practice.

**Highlights:** Systematic medical literature review, Study prioritization by quality, Structured evidence synthesis, Regular source updates, Clinician-friendly interface, Privacy-first data handling

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| leCanon First Monthly | $29.99 | per month |
| leCanon First Yearly | $249.99 | per year |


## Frequently asked questions

### Is echOpen ON free?

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

### Is leCanon free?

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

### Do echOpen ON or leCanon have ads?

Neither echOpen ON nor leCanon shows ads.

### Which is updated more often, echOpen ON or leCanon?

echOpen ON ships an update every 4 months, and leCanon every 4 months. Most recently, echOpen ON was updated on October 16, 2026 and leCanon on October 24, 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.*