Android engineering
Kotlin and Java applications designed around local-first records, resilient lifecycle behavior, and accessibility-aware interfaces.
ARBH Labs · Developer
Built in-house.
Verified in the open.
Technical information for ARBH Labs Android products, release integrity, privacy architecture, and responsible testing.
Engineering systems
A small, deliberate production stack.
Android software, delivery, and verification are maintained as one traceable release pipeline.
On-device biosignals
PulseTrace processes camera and optional microphone signals on the device. Raw measurement media is not uploaded for cloud analysis.
Verified releases
Approved APKs are delivered from Cloudflare R2 with published file sizes and SHA-256 checksums for independent verification.
Responsible disclosure
Security and technical reports can be sent directly to [email protected].
Internal testing
Enroll a test device.
Authorized ARBH Labs devices can be excluded from public APK download totals. Enrollment stores a secure first-party browser token; no IP address, hardware identifier, or fingerprint is used.