BPScanner is an iOS app for capturing blood pressure monitor photos, extracting systolic, diastolic, and pulse readings, and saving reviewed readings to Apple Health.
The app is experimental and is not a medical device. Always review readings before saving them, and follow guidance from a qualified clinician for medical decisions.
- Camera and photo-library import for monitor images
- Roboflow-based scanner using a custom model trained for blood pressure monitor displays
- Gemini Vision scanner fallback support
- Manual entry and review before saving
- Apple Health integration for blood pressure and pulse history
- English and Latin American Spanish localization strings
- Xcode 26 or newer
- iOS 26 SDK or newer
- An Apple developer account with HealthKit capability enabled for device testing
- Optional: Roboflow and Gemini API keys for the cloud scanning paths
-
Open
BPScanner.xcodeprojin Xcode. -
Copy
Config/GeminiSecrets.example.xcconfigtoConfig/GeminiSecrets.xcconfig. -
Add any API keys you want to use:
ROBOFLOW_API_KEY = your_roboflow_key GEMINI_API_KEY = your_gemini_key -
Select the
BPScannerscheme. -
Build and run on a physical device for camera and HealthKit testing.
Config/APIKeys.xcconfig is tracked with blank defaults. Config/GeminiSecrets.xcconfig is ignored and should never be committed.
Roboflow is currently the primary scanner. Gemini support remains available in the codebase, and the Apple Vision OCR plus Foundation Models path is documented as an attempted local approach that was discarded for primary use because OCR struggled with seven-segment display digits.
See docs/SCANNING.md for the scanner architecture and tradeoffs.
Run the unit tests from Xcode with the BPScanner scheme. The existing tests cover view-model validation and Roboflow response parsing behavior.
See CONTRIBUTING.md.
Apache License 2.0. See LICENSE.