Do ① Thing
One habit. One day. Repeat.
About
This app helps you track a single daily habit or commitment with a simple, private check-in system. Monitor your progress with gentle statistics and visual calendars, and receive discreet reminders. Customize your experience with multiple themes and add private emoji notes to each day.
What's New in Do ① Thing
1.4
May 30, 2026
Rotate your phone — your one thing comes with you. Today's check-in, perfectly centered. The calendar's still there in portrait when you want the bigger picture.
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FAQ
What is Do ① Thing?
Do ① Thing is a simple daily habit tracker designed to help you focus on one commitment at a time. It offers a private check-in system, visual progress tracking, and customizable themes.
How does Do ① Thing track habits privately?
Do ① Thing is designed with privacy in mind. It never asks what your habit is, and only saves your daily check-in states. The meaning of your habit remains private to you.
What are the check-in states in Do ① Thing?
You can check in with four states: 'Done' if you completed your habit, 'Almost' for partial credit, 'Miss' if you didn't do it, and 'Reset' if you change your mind about the day's commitment.
Does Do ① Thing have ads?
No, Do ① Thing is ad-free. The developer has explicitly stated that there are no ads within the application.
What devices does Do ① Thing support?
Do ① Thing is available on iPhone, iPad, and Apple Watch. You can check in from your wrist with a single tap.
How much does Do ① Thing cost?
Do ① Thing is a one-time purchase of $1.99. It is not a subscription-based app, and there are no upsells.
How often is Do ① Thing updated?
The latest version of Do ① Thing is 1.4, which was last updated on May 30, 2026. Updates typically include bug fixes and feature enhancements.
Can I add notes to my daily check-ins in Do ① Thing?
Yes, you can add a private emoji to any day as a decorator. This emoji serves as a small, private reminder of how that day felt, separate from your check-in state.