# GuardianOS

> GuardianOS is a configurable field operations platform for UK rail and depot crews, made by Hillmorton Design & Development. It runs the whole shift in one record: duty sign-on, briefings, van checks, travel, risk assessment (DSRA / EDRA), job work with stay-on-site or leave-site pauses, photo evidence, client release sheets, and timesheet and mileage export. Native Swift app for iPhone, native Kotlin app for Android, web portal for the office.

## Key facts
- For: UK rail contractors, depot operators, train cleaning companies
- Platforms: iOS (Swift, SwiftUI), Android (Kotlin, Jetpack Compose), web portal
- White label: one app per store; a company code loads the employer's name, logo, colours and modules
- Pricing: core per user, plus paid modules
- Protected rules: railway working-hour limits, minimum rest, fatigue review, immutable audit
- Out of scope by design: invoicing, payroll calculation (timesheets and mileage are exported as CSV)
- Status (October 2026): platform live in production; native apps in build, early access open; workflow proven live at Rail Shine

## Modules
- Core: core.auth, core.operations, core.staff, core.workforce_hours
- Safety pack: safety.van_checks, safety.dsra, safety.edra, safety.photos, safety.fatigue, safety.lone_worker, safety.impact
- Depot and more: ops.yard, ops.assets, ops.maintenance, ops.materials, ops.drive_mileage, ops.live_map, ops.reports, compliance.briefings, incidents.close_calls, documents.release_sheets

## Compared with
- Mitti (formerly SafetyCulture): strong on inspections, issues, training; does not run jobs, pauses, timesheets, mileage or release sheets
- Signal Software: rail rostering and fatigue; not a job and evidence app
- BigChange: general field service jobs, vehicle tracking and invoicing; no railway hours, fatigue or rail-specific workflows

## Pages
- [Landing page](https://guardianbyhm.app/): overview, shift flow, features, modules, comparison, FAQ