I’m an RN...
There are no explanations and I can’t find the calculator you mentioned.
I gave you 5 * because it’s probably my fault.
I’ll update after I receive your answer and I’ve tried it.
Thank you

Archived App (Last seen on 5 Aug 2026)
This is an archived listing of the app previously available on the App Store.This medical reference tool helps healthcare providers assess stroke risk in patients with atrial fibrillation. It uses median and range values from reviewed studies to inform risk assessment, aligning with AHA 2019 guidelines.
1.0
April 30, 2020
The CHA2DS2VASc App is a medical reference tool designed to help healthcare providers assess the risk of stroke in patients diagnosed with atrial fibrillation. It provides risk scores based on established guidelines and study data.
No, the CHA2DS2VASc App is intended as a reference tool and not for making definitive medical decisions. Users are strongly advised to seek a doctor's advice in addition to using the app before making any medical decisions.
The app references the AHA 2019 guidelines for the Management of Patients with Atrial Fibrillation, which recommend oral anticoagulants for specific risk scores in men and women.
The app uses median and range values from all studies reviewed in its reference material, excluding outlier numbers, to present the risk of stroke.
The provided data does not specify platform availability beyond its existence as a mobile application. Further details on iOS or Android compatibility would require additional information.
The app was last updated on April 30, 2020, with version 1.0. There is no information available regarding the frequency of future updates.
The CHA2DS2VASc App has an age rating of 4+, making it suitable for a wide audience of medical professionals.
The CHA2DS2VASc App has a perfect rating of 5.0 stars, based on a single review. This indicates a highly positive reception from its initial users.