Deadline & Calendar Pro

Deadline Pro is the simple, private way to calculate dates and stay on top of every deadline that matters. ADD / SUBTRACT Pick a starting date, type a number, choose days, weeks, months, or years — and see the result instantly. Toggle "Business days only" to skip weekends and public holidays for over 150 countries. DURATION BETWEEN Need to know how many days, weeks, business days, or hours fall between two dates? Tap two tiles and read the breakdown: years, months, and days, side by side. COUNTDOWNS Track every deadline that matters — visa renewals, court dates, contracts, birthdays, exams, anniversaries. Get a local reminder on the day, or a week ahead, or whenever you choose. Add events to your iOS Calendar in one tap. PRIVATE BY DESIGN No accounts. No servers. No analytics. No ads. Everything you enter stays on your device. Export your data to JSON at any time, or delete it with a single tap. The app makes zero network requests during normal use. FEATURES • Add or subtract days, weeks, months, years from any date • "Business days only" mode that skips weekends and public holidays • 150+ country holiday calendars, bundled — works fully offline • Duration between any two dates: total days, business days, weeks, hours • Countdowns with optional reminders and iOS Calendar integration • Light, dark, and system themes • Multiple date formats (MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD) • Week starts on Sunday or Monday • Available in English, Arabic (RTL), French, Spanish, German, Portuguese, Italian, Japanese, Chinese, and Hindi • Haptic feedback you can turn off • Export your data as JSON via the share sheet WHO IT'S FOR Lawyers and paralegals calculating filing deadlines. Project managers tracking sprint dates. Travelers watching visa expirations. Students counting down to exams. Anyone who's ever opened a calendar and started counting on their fingers. Pay once. Use forever. No subscription.