# ATS Journals App vs APAPP ACE

The clearest difference is update cadence: APAPP ACE at every 4 days against ATS Journals App's every 3 months. ATS Journals App's advantage is iOS requirement (11.1 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ATS Journals App ships an update every 3 months, APAPP ACE every 4 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ATS Journals App | APAPP ACE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.4 (9 ratings)](https://appshunter.io/ios/app/ats-journals-app/id626126031/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 29 MB | 16 MB |
| Requires iOS | **11.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [American Thoracic Society Inc.](https://appshunter.io/developer/626126034) | [Focus Medical Communications, LLC](https://appshunter.io/developer/1744148484) |

## What reviewers say

### ATS Journals App

[App page](https://appshunter.io/ios/app/ats-journals-app/id626126031)

Access the full text of leading respiratory, critical care, and sleep medicine journals. Explore articles, abstracts, and podcasts, and manage your reading with bookmarks and tracking features. Optimized for mobile devices.

**Highlights:** Full-text articles, Abstracts and images, Bookmarks and reading tracking, Podcast series, Hyperlinked resources, Optimized for mobile

**Features:** macOS Compatibility

**In-app purchases:** none


### APAPP ACE

[App page](https://appshunter.io/ios/app/apapp-ace/id6502762731)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ATS Journals App free?

ATS Journals App is free to download, with no in-app purchases.

### Is APAPP ACE free?

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

### Do ATS Journals App or APAPP ACE have ads?

Neither ATS Journals App nor APAPP ACE shows ads.

### Which is updated more often, ATS Journals App or APAPP ACE?

ATS Journals App ships an update every 3 months, and APAPP ACE every 4 days. Most recently, ATS Journals App was updated on November 1, 2026 and APAPP ACE on November 4, 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.*