Deadline Backsolve: Pace Plan

Works backwards from your deadline and shows only today's share. Behind schedule, it answers in numbers: days to add, minutes to add, pages to cut. Offline, no account.

NOTE: The app interface is currently in Japanese only. The App Store listing is in English, but the app itself is not yet localized.

When you realize you won't hit the deadline, what you actually need is the answer to "so what do I change?"

Deadline Backsolve computes the shortfall and gives you concrete fixes: "push the deadline 3 days", "add 45 minutes per working day", "cut 4 pages". Real numbers, not a warning label.

■ Three inputs. Thirty seconds. What, how much, by when. That's the whole setup. Per-weekday hours and finer settings can wait until later.

■ You only look at today The home screen says "Today: 8 pages." That's it. No Gantt charts, no dense tables. Tap "+1 page" when you're done.

■ It follows your real week One hour on weekdays, three on weekends? Your quota is distributed by the time you actually have, not spread evenly into a plan you were never going to keep.

■ It learns your real pace It starts from an estimate, then switches to your measured minutes-per-unit once you have logged enough work. You never have to re-tune the estimate yourself.

■ Recovery plans, computed

• Switch to a later registered deadline (with hours gained)
• Extend the deadline by N days
• Add N minutes per working day
• Cut N units
• Finish each unit within N minutes
• Open up a day you had marked as rest Tap any of them to apply it to the plan immediately.

■ A focus timer that survives a crash It stores the start time and takes the difference, rather than ticking every second. Close the app, crash the app, it keeps counting. And it never plays a sound effect. Ever.

■ It does not go online No account. No server. No ads. No tracking. Your data lives on the device. Move it with a JSON export/import when you change phones. There is no sync to corrupt.

■ One-time purchase. No add-ons. Everything is unlocked at purchase. Unlimited projects and logs. No subscription.

Works for comics, novels, illustration books and merch, but also for article deliveries, reports and theses — anything with an amount and a due date. Name the unit whatever you like.