Calculate dates.
Track every deadline.
Deadline Pro adds and subtracts days, skips weekends and holidays in 150+ countries, measures durations, and keeps your countdowns front and center — all on your device, with no accounts and no tracking.
What it does
Three tools, one focused app — no clutter, no upsells.
Add & Subtract
Pick a date, type a number, choose days, weeks, months or years. Toggle business-days mode to skip weekends and public holidays automatically.
Duration Between
Tap two dates. See the breakdown in years, months and days, plus totals in business days, weeks and hours.
Countdowns
Track visa expirations, court dates, exams, anniversaries. Optional reminders fire locally. One tap adds events to your iOS Calendar.
Private by design
No accounts. No servers. No analytics. No ads.
Zero network calls
Holiday data for 150+ countries is bundled at build time. The app makes no network requests in normal use.
Your data stays local
Countdowns, calculations and preferences live in the iOS app sandbox on your device — nowhere else.
Export or delete anytime
Share a JSON copy of your data through the iOS share sheet, or wipe everything from this device with one tap.
Support
Questions, feedback, bug reports — all welcome.
Get in touch
Email is the fastest way to reach me. I typically reply within 1–2 business days. Include your iOS version and a short description of what you saw.
Legal
The fine print, kept short.