About this app
The 4AT is a simple and short (less than 2 min) delirium detection tool designed for easy and effective clinical use. It does not require special training. The 4AT is the best validated delirium tool in the literature. There are more than 25 diagnostic test accuracy studies involving more than 5000 patients. It is highly sensitive and specific. The 4AT is now one of the most commonly-used tools in practice globally. It is proven in routine care, with high completion rates and delirium detection at expected clinical rates.
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 20, 2026 · 6:11 AM Free
Screenshots
