# SURF vs INESSS

The clearest difference is review sentiment: SURF at 67% against INESSS's 0%. INESSS's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SURF sells 1 in-app purchase, starting at $99.99 per year. INESSS asks for nothing beyond the download.

SURF ships an update every 5 months, INESSS monthly. Both last shipped on October 9, 2026.

## The numbers

| Metric | SURF | INESSS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Subscription | **Free** |
| Size | 204 MB | 337 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Philippe FURGER](https://appshunter.io/developer/1055742280) | [INESSS](https://appshunter.io/developer/1206046868) |

## What reviewers say

### SURF

[App page](https://appshunter.io/ios/app/surf/id1055743301)

Access evidence-based medical content for internal medicine, differential diagnosis, and lab values. This comprehensive guide is designed for residents, general practitioners, and specialists, offering a vast amount of information from multiple expert-authored books.

**Highlights:** Evidence-based medical content, Differential diagnosis of symptoms, Lab value interpretation, Comprehensive internal medicine, Links to external calculators, Accessible on multiple devices

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 year | $99.99 | per year |


### INESSS

[App page](https://appshunter.io/ios/app/inesss/id1206046869)

This application provides clinicians with optimal use guides and clinical support tools. It aims to promote clinical excellence and efficient resource use in healthcare and social services.

**Highlights:** Optimal use guides, Clinical support tools, Promotes clinical excellence, Efficient resource utilization, Recommendations for adoption and use

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

**In-app purchases:** none


## Frequently asked questions

### Is SURF free?

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

### Is INESSS free?

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

### Do SURF or INESSS have ads?

Neither SURF nor INESSS shows ads.

### Which is updated more often, SURF or INESSS?

SURF ships an update every 5 months, and INESSS monthly. Most recently, SURF was updated on October 9, 2026 and INESSS on October 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.*