# WikEM vs STI Tx Guide

The clearest difference is rating: WikEM at 4.8 against STI Tx Guide's 3.5. WikEM also leads on update cadence (every 5 days vs every 2 months) and ratings volume (4.7K vs 36). STI Tx Guide's advantage is in-app purchases (none vs 10). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WikEM sells 10 in-app purchases, starting at $1.99 per month. STI Tx Guide asks for nothing beyond the download.

WikEM holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: WikEM has 4.7K ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 54% of WikEM's written reviews are positive against 36% of STI Tx Guide's.

WikEM ships an update every 5 days, STI Tx Guide every 2 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | WikEM | STI Tx Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.7K ratings)](https://appshunter.io/ios/app/wikem/id576405449/reviews)** | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) |
| Number of ratings | **4.7K** | 36 |
| Positive reviews | **54.1% of reviews** | 35.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 157 MB | 36 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [OpenEM Foundation](https://appshunter.io/developer/766470023) | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) |

## What reviewers say

### WikEM

[App page](https://appshunter.io/ios/app/wikem/id576405449)

This app provides a continuously updated wiki and database of emergency medicine knowledge for physicians. Access key information offline for rapid reference during daily practice. An in-app subscription unlocks advanced AI-powered questions, favorites, and history features.

**Highlights:** Emergency medicine knowledge database, Continuously updated content, Offline access, AI-powered questions (subscription), Favorites and history (subscription)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WikEM AI Search | $1.99 | per month |
| Premium Features | $4.99 | per year |
| Personal Notes | $0.99 | one-time |
| Favorites and Lists | $5.99 | one-time |
| History and Favorites | $9.99 | one-time |
| WikEM Russian Content | $29.99 | one-time |
| WikEM Italian Content | $29.99 | one-time |
| WikEM Polish Content | $29.99 | one-time |
| WikEM Hindi Content | $29.99 | one-time |
| WikEM Turkish Content | $29.99 | one-time |

**What reviewers like**

- 💡 Useful and concise information
- 🚀 Great resource for quick reference
- 👍 Helpful for medical professionals

**What reviewers complain about**

- 🐛 Frequent login and account issues
- 🐛 App crashes and database loading problems
- 🐛 Compatibility issues with newer devices
- 🔋 High battery consumption

**Reported bugs**

- Login screen freezes
- Incompatible with older devices
- Broken hyperlinks and charts
- Search function not working as expected

**Requested features**

- Dark mode support
- Ability to save favorites and customize the app
- Improved search functionality
- Regular content updates


### STI Tx Guide

[App page](https://appshunter.io/ios/app/sti-tx-guide/id655206856)

Provides healthcare professionals with up-to-date, evidence-based recommendations for the prevention, diagnosis, and treatment of sexually transmitted infections. Features include clinical care guidance, sexual history resources, and patient materials for effective patient management.

**Highlights:** STI prevention recommendations, Diagnosis guidance, Treatment protocols, Clinical care assistance, Sexual history resources, Patient management tools

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

**In-app purchases:** none


## Frequently asked questions

### Is WikEM free?

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

### Is STI Tx Guide free?

STI Tx Guide is free to download, with no in-app purchases.

### Which has better reviews, WikEM or STI Tx Guide?

WikEM is rated higher. WikEM averages 4.8 out of 5 from 4.7K ratings, while STI Tx Guide averages 3.5 from 36 ratings.

### Do WikEM or STI Tx Guide have ads?

Neither WikEM nor STI Tx Guide shows ads.

### Which is updated more often, WikEM or STI Tx Guide?

WikEM ships an update every 5 days, and STI Tx Guide every 2 months. Most recently, WikEM was updated on October 13, 2026 and STI Tx Guide on October 8, 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.*