Develop a Cross-Platform Mobile App for Android & iOS

Description

We run a home services business — plumbers, electricians, about 80 of them on the road — and the app is for them, not for customers. Right now they get their jobs by WhatsApp and record what they did on paper. What the app needs to do: show today's jobs, capture what was done with photos, take a customer signature, and record parts used. What it needs to do well is work with no signal. A basement with no reception is a normal Tuesday, and an app that loses a completed job because the sync failed will be uninstalled by Wednesday. Offline-first with conflict resolution is the actual engineering here. The screens are simple.

• Build offline-first data handling with a queue that survives app kill and device restart
• Design conflict resolution for the case where dispatch reassigns a job the engineer already started
• Capture photos and signatures locally with deferred upload and visible sync state
• Keep the UI usable in gloves and in poor light — large targets, high contrast
• Ship to both stores and set up crash reporting before rollout

• Android and iOS apps published to the stores
• Offline-first sync with documented conflict resolution
• Photo and signature capture with deferred upload
• Crash reporting and a field pilot report with ten engineers