
TT Calendar: To-Do & Countdown
Color your month, see progress
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Make your effort visible. TT Calendar colors every day of your month by how much you actually got done — like a GitHub contribution graph for your life. The more you show up, the better your month looks, and your streaks are plain to see.
[COLORED MONTH]
One cell per day, colored by how full and how done it was: busy days in warm yellow, deep work in green, milestones in purple. How the month went, visible the moment you open the app.
[TO-DOS THAT PRIORITIZE THEMSELVES]
· Sort by deadline + planned date + importance, so what truly matters comes first
· List / Eisenhower matrix / Gantt / sticky-note views
· Repeating to-dos: daily, weekdays, weekly — finish one and the next is scheduled automatically; late check-ins never pile up
· Alarms and reminders: real system notifications at the moment you pick
[EVENTS & IMPORTANT DATES]
· Events with start/end times, color-coded (work / class / sports / play)
· Birthdays, anniversaries and exam dates on a single page
[COUNTDOWN DAYS]
How many days until the exam, the launch, the trip? Card-based countdowns; birthdays and anniversaries recompute their next date automatically, every year.
[INSIGHTS]
· Contribution heatmap: 26 weeks of daily completions, GitHub style
· Streak records and milestone badges
· Busyness forecast: see the next 14 days of load before it lands
[HOME-SCREEN WIDGETS]
Today's to-dos, events and countdowns right on your Home Screen; the monthly completion heatmap grows cell by cell.
[MOVE IN MINUTES]
Coming from TickTick or Todoist? Import a TickTick CSV backup or connect Todoist with your own API token — your history lands in minutes.
[YOUR DATA, YOURS]
· Everything stored locally; full offline use
· Optional sync via your own private GitHub repository — desktop and phone merge both ways
· No ads, no in-app purchases, no embedded tracking
See every day. Keep the streak.
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What's New in TT Calendar
1.1.0
October 24, 2026
· Now available in 8 languages (English, 简体中文, 繁體中文, 日本語, 한국어, Français, Español, Русский) · Import your history from TickTick (CSV backup) or Todoist (your own API token) in minutes · New guided onboarding tour — up and running in 3 minutes · Security hardening for the optional desktop companion and misc fixes
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