# AASM Link vs ez1020

The clearest difference is in-app purchases: ez1020 at none against AASM Link's 4. ez1020 also leads on iOS requirement (13.4 vs 15.0). AASM Link's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. AASM Link sells 2 in-app purchases, starting at $17.49 per month. ez1020 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for AASM Link against 5.0 for ez1020. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

AASM Link ships an update every 10 days, ez1020 every 5 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | AASM Link | ez1020 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/aasm-link/id6745556028/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ez1020/id6748396079/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 167 MB | 36 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [American Academy of Sleep Medicine](https://appshunter.io/developer/476461157) | [Neuroscience Advisors LLC](https://appshunter.io/developer/1825616324) |

## What reviewers say

### 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 |


### ez1020

[App page](https://appshunter.io/ios/app/ez1020/id6748396079)

This app assists neurodiagnostic technologists in accurately and quickly placing EEG electrodes according to the International 10–20 System. It calculates standardized positions using minimal head measurements, streamlining the workflow for both students and experienced professionals.

**Highlights:** Compliant with International 10–20 system, Precise electrode mapping from 3 measurements, Optimized for ez1020 Tape Measures, Intuitive interface for clinical speed, No PHI stored or transmitted

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AASM Link free?

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

### Is ez1020 free?

ez1020 is free to download, with no in-app purchases.

### Which has better reviews, AASM Link or ez1020?

AASM Link and ez1020 are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do AASM Link or ez1020 have ads?

Neither AASM Link nor ez1020 shows ads.

### Which is updated more often, AASM Link or ez1020?

AASM Link ships an update every 10 days, and ez1020 every 5 days. Most recently, AASM Link was updated on October 9, 2026 and ez1020 on October 6, 2026.

---

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