# K vs AASM Link

The clearest difference is in-app purchases: K at none against AASM Link's 4. AASM Link's advantage is update cadence (every 10 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AASM Link sells 2 in-app purchases, starting at $17.49 per month. K asks for nothing beyond the download.

K ships an update monthly, AASM Link every 10 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | K | AASM Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/aasm-link/id6745556028/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 167 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [K-DOC Inc.](https://appshunter.io/developer/1555393730) | [American Academy of Sleep Medicine](https://appshunter.io/developer/476461157) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-doc-providers/id6503041517)

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

**In-app purchases:** none


### AASM Link

[App page](https://appshunter.io/ios/app/aasm-link/id6745556028)

This AI-powered medical tool provides sleep medicine professionals with instant access to clinical guidelines, standards of care, and quality measures. It features AI-enhanced search, study tools for board exams, and automatic updates for new or revised standards. Expert-curated reading lists are also available to tailor content to specific clinical interests.

**Highlights:** AI-enhanced guideline search, Board examination study tools, Automatic updates for standards, Expert-curated reading lists, Access to clinical practice guidelines, Quality measure information

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Member Sub - Monthly | $17.49 | per month |
| Non-Member Sub - Monthly | $24.99 | per month |


## Frequently asked questions

### Is K free?

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

### Is AASM Link free?

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

### Do K or AASM Link have ads?

Neither K nor AASM Link shows ads.

### Which is updated more often, K or AASM Link?

K ships an update monthly, and AASM Link every 10 days. Most recently, K was updated on October 13, 2026 and AASM Link on October 9, 2026.

---

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