Business Day Counter

Business Day Counter is a focused Android utility for date interval, business-day, deadline, and age-style date calculations.

Key features:
- Calculate calendar-day and business-day gaps between two dates.
- Exclude weekends and optional manually entered holidays.
- Estimate future or past deadlines by day count.
- Keep recent date calculations in local device history.

Privacy and data:
- Works as a local tool.
- Does not require account sign-in.
- Does not include analytics, advertising, billing, or cloud sync in this release.
- Saved history and settings remain on the device unless the user deletes them or clears app data.

Limitations:
- Holiday handling depends on manual selections and does not download official holiday calendars.