Injyn
France / Europe
Mobile App
Injection tracking is a growing need, covering hormone therapy, GLP-1 and chronic self-injection, yet the tools are US-centric, siloed by use case, and rarely built with European privacy rules in mind.
Injyn is one privacy-first app across all three: log and plan injections, rotate sites, keep an inventory, and export something a doctor can actually read.
Project Story
One Rust workspace serves the whole product: a pure domain crate holds the rules, the Axum backend and the Dioxus app both depend on it, and neither can drift from the other.
Clean architecture is not decoration here. Use cases depend on traits, adapters sit at the edges, and auth hides behind a swappable provider so Kratos is never load-bearing.
Design Signals
Privacy is the feature, not the disclaimer: EU hosting, no third-party analytics, and a data model where an export belongs to the person who made it.