Do ① Thing

One thing. That's all. Pick the single habit, ritual, or commitment that matters most to you today. Don't tell the app what it is — that part is private. Just check in: did you do it? Do 1 Thing is a deliberately simple daily tracker. Four states, one tap a day: • Done — you did it • Almost — partial credit • Miss — didn't happen today • Reset — change your mind Watch your streak grow. See weeks and months at a glance in a clean monthly calendar. Get a quiet reminder at the time you choose, with a one-tap check-in directly from the notification — no need to even open the app. PRIVACY BY DESIGN The app never asks what your "one thing" is, and it never knows. Only your daily check-in states are saved — the meaning lives in your head, where it belongs. No accounts. No tracking. No analytics. No ads. iPhone, iPad + APPLE WATCH Check in from your wrist with a single tap. The iPad layout gives each day room to breathe — larger cells, centered icons, the full month at a glance. iCloud keeps everything in sync across all your devices automatically. SIX THEMES Choose the look that matches your energy: • Jewel — bold and vibrant • Mindful — calm and cool • Focus — warm and grounded • Sunset — soft golds and rose • Ocean — deep teals and blue • Midnight — dark, rich, and easy on the eyes EMOJI DAY NOTES Add a quick emoji to any day as a private decorator — a small reminder of how that day actually felt. Separate from your check-in state, never used in stats. GENTLE STATS A streak counter, a 7/30/90-day breakdown, weekly bars, and a rolling success rate. Enough to feel progress, not enough to obsess. ONE-TIME PURCHASE Purchase once, yours forever. No subscriptions. No upsells. One thing. Every day. That's the whole idea.