Contact person: Business Client

Phone:Show

Email:Show

Location: Copenhagen, Denmark

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m looking to have a cross-platform mobile app built for both iOS and Android that keeps a running total of the days I’ve spent outside my home country. The core flow is simple:

1. I enter or import individual departure and return dates.
2. The app instantly calculates the number of days abroad for each trip and maintains a cumulative tally that updates every time I add, edit, or delete a date range.
3. A dashboard shows my current-year total as well as all-time totals so I can quickly confirm residency or tax-related limits.

Key requirements
• Modern and sleek UI that feels consistent on iOS and Android.
• Email-based user authentication so my data is private and can sync across devices.
• Local persistence with secure cloud backup (Firebase, Supabase, or a comparable solution—open to your recommendation).
• Basic filtering (by year, custom date range) and an option to export my date log as CSV or PDF.

Nice-to-haves (if feasible within scope)
• Push reminders when I’m approaching a predefined day limit.
• Quick import from calendar or .ics file.
• Dark mode that matches system settings.

I’m flexible on tech stack, but React Native or Flutter make the most sense to keep one codebase. Hand-off will include full source code, brief setup documentation, and a TestFlight / APK build so I can verify everything before final sign-off.

If this sounds like a build you can confidently deliver, let me know your proposed timeline, tech choice, and any similar apps you’ve shipped." (client-provided description)