15 posts found
Most wearable APIs are not built for you. They are built for partners who build features that keep you subscribed. Here is how the data lock-in actually works, and how Pulsyn does the opposite.
Most health trackers treat your phone as a dumb pipe to their cloud. When you turn on airplane mode, the app becomes a brick. Pulsyn's architecture assumes the opposite: your phone is the computer, the database lives locally, and the cloud is an optional extra.
A technical deep-dive into Pulsyn local-first encryption stack: SQLCipher, AES-256-GCM, 600,000 PBKDF2 iterations, and why we intentionally cannot recover your data if you lose your PIN.
Oura filed for its $11 billion IPO with 5 million subscribers and $2 billion in projected revenue. The catch: its core business model is a subscription paywall on health data that competitors already offer for free, sitting on top of a canceled Pentagon contract and an active class-action lawsuit.
Every smart ring app ships your biometric data to a server before showing you your own sleep score. The cloud isn't there for your convenience. It's there for their business model.
What I found inside a state government digital identity application with 500K+ installations
