# CarDSPlus > Clinical study participant health data collection and secure storage app. (iPhone/iPad app by Rohan Khera.) - Source: https://appshunter.io/ios/app/cardsplus/id6470764242 (this page in markdown: same URL + `.md`) - Developer: [Rohan Khera](https://appshunter.io/developer/1709545475) - Category: Health & Fitness, Medical - Price: Free - Rating: 5.00/5 from 3 App Store ratings - Age rating: 4+ - Requires: iOS 16.6 · 9 MB - Languages: English - Released: 2024-01-11 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/cardsplus/id6470764242/reviews.md ## What is CarDSPlus? CarDS+ is developed by the Cardiovascular Data Science (CarDS) Lab to support participants enrolled in approved clinical studies. The app securely connects with supported wearable devices, including Apple Watch and Fitbit, to collect health data such as activity, heart rate, and ECGs. All data is encrypted during transfer and stored on secure, cloud-based servers. Data is used only for research purposes in accordance with the study protocol and relevant ethics approvals. CarDS+ is intended solely for participants in CarDS Lab–led studies. If you are not enrolled in a study, the app will not provide functionality. Individual studies that require more data will set up a secure system to collect any further information necessary and is mutually agreed. Supported iOS versions: 16.6 and up. DISCLAIMER: This mobile application provides general information and resources related to health and wellness topics for educational and informational purposes only. The content provided through this application is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always Consult a Qualified Healthcare Provider: Users of this application are strongly advised to consult with a qualified healthcare provider, such as a licensed physician, before making any decisions related to their health. This includes, but is not limited to, decisions about medical conditions, treatments, medications, or any other health-related concerns. The information provided in this application should not be considered as medical advice, endorsement, or recommendation of any specific healthcare provider, treatment, or medication. No Doctor-Patient Relationship: The use of this application does not establish a doctor-patient relationship between the user and the developers, owners, or content providers of this application. The information provided here is general in nature and may not be applicable to specific individual cases. Individual health situations and needs vary, and appropriate healthcare professionals should always be consulted for any health-related concerns. Emergency Situations: In case of a medical emergency, users should immediately contact their local emergency services number or go to the nearest emergency room. This application is not designed or intended for use in emergency situations. Reliance on Information: Any reliance on the information provided by this application is solely at the user's own risk. The developers, owners, and content providers of this application make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the information contained within the application. By using this application, the user acknowledges and agrees to the terms of this disclaimer. If the user does not agree with these terms, they should not use this application. ## Key features - Secure wearable device connection - Activity and heart rate tracking - ECG data collection - Encrypted data transfer and storage - Research-purpose data utilization - Study-specific functionality ## Frequently asked questions about CarDSPlus ### What is CarDSPlus used for? CarDSPlus is designed to support participants in approved clinical studies by securely collecting health data from wearable devices. This data is then used for research purposes in accordance with study protocols and ethics approvals. ### Does CarDSPlus work for everyone? No, CarDSPlus is intended solely for participants enrolled in CarDS Lab-led studies. If you are not enrolled in a study, the app will not provide any functionality. ### What kind of health data does CarDSPlus collect? CarDSPlus collects health data such as activity levels, heart rate, and ECGs from supported wearable devices like Apple Watch and Fitbit. ### Is my data safe with CarDSPlus? Yes, all data collected by CarDSPlus is encrypted during transfer and stored on secure, cloud-based servers. Data is used strictly for research purposes and in compliance with ethical guidelines. ### What devices are compatible with CarDSPlus? CarDSPlus is compatible with iPhones running iOS version 16.6 and up. It also connects with supported wearable devices, including Apple Watch and Fitbit. ### Does CarDSPlus provide medical advice? No, CarDSPlus provides general information for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment, and users should always consult a qualified healthcare provider. ### How often is CarDSPlus updated? The latest version of CarDSPlus is 5.2, and it was last updated on August 23, 2025. This indicates a recent update frequency. ### What is the user rating for CarDSPlus? CarDSPlus has a perfect rating of 5.0 stars based on 3 ratings, suggesting a highly positive user sentiment among its current users. ## Version history (last 5 releases) ### 5.2 — 2025-08-23 Minor bug fixes ### 5 — 2025-07-29 In-app FitBit integration added to the app. ### 4 — 2025-07-11 Cleaner UI and faster data uploads ### 3.1 — 2024-07-13 Resolved bugs. Faster data processing. ### 2 — 2024-01-13 'Contact Us' feature. Updated instructions to align with the current and approved functionality and intended use. ## More apps by Rohan Khera - [CarDSScan](https://appshunter.io/ios/app/cardsscan/id6751209518) All apps by Rohan Khera: https://appshunter.io/developer/1709545475 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*