About this app
Compression-only CPR doubles a person's chance of surviving sudden cardiac arrest. This app walks viewers through the simple steps for performing compression-only CPR. For more information about CPR training classes at Duke, please call 1-888-ASK-DUKE. For questions and support, please contact: cprapp@dm.duke.edu
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 10, 2026 · 9:51 AM Free
Screenshots
