# SURF vs Code Clear

The clearest difference is in-app purchases: Code Clear at none against SURF's 1. Code Clear also leads on update cadence (every 2 months 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. Code Clear asks for nothing beyond the download.

SURF ships an update every 5 months, Code Clear every 2 months. The most recent releases landed on September 22, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | SURF | Code Clear |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Subscription | — |
| Size | 204 MB | 22 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Philippe FURGER](https://appshunter.io/developer/1055742280) | [Skyscraper Software GmbH](https://appshunter.io/developer/1153555733) |

## 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 |


### Code Clear

[App page](https://appshunter.io/ios/app/code-clear/id6612018358)

**In-app purchases:** none


## Frequently asked questions

### Is SURF free?

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

### Is Code Clear free?

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

### Do SURF or Code Clear have ads?

Neither SURF nor Code Clear shows ads.

### Which is updated more often, SURF or Code Clear?

SURF ships an update every 5 months, and Code Clear every 2 months. Most recently, SURF was updated on September 22, 2026 and Code Clear on May 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*