# TT Calendar: To-Do & Countdown — Color your month, see progress

> Color your month, see progress (iPhone/iPad app by 易安 邓.)

- Source: https://appshunter.io/ios/app/tt-calendar-to-do-and-countdown/id6814356398 (this page in markdown: same URL + `.md`)
- Developer: [易安 邓](https://appshunter.io/developer/6813529066)
- Category: Productivity, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 84 MB
- Languages: American English
- Released: 2026-10-02
- Data updated: 2026-10-31

## What is TT Calendar?

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.

## Is TT Calendar safe?

Not enough ratings yet to assess TT Calendar.

## Is TT Calendar legit?

TT Calendar: To-Do & Countdown has limited verification signals. The AppsHunter Legitimacy Score for TT Calendar is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1.0 — 2026-10-24

· 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

### 1.0.0 — 2026-10-03

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*