An offline-first mobile app for children who cannot rely on a connection

The app supports autistic children and the people who care for them: communication, learning to recognise emotions, predictable routines, sensory regulation, and progress a caregiver can actually understand.

Its users cannot depend on a network connection, and a loading spinner mid-routine is not a minor inconvenience — it breaks the predictability the whole tool exists to provide.

It handles data about children, which sets the security bar high and makes careful scoping an ethical requirement, not just a professional one.

Offline-first from the first commit, not added later. The app works fully without a connection and reconciles when one returns.

We scoped what the product deliberately is not: it is not a diagnostic, screening, or treatment tool, and it says so plainly. Being explicit about limits is part of building responsibly in this space.

Security decisions are justified in the code itself. Where a dependency handles something sensitive — hashing the caregiver PIN, for instance — the reason it was chosen sits next to the choice.