build things worth keeping.

a habit tracker for iphone and apple watch. one tap to check in, streaks that respect your rest days, and you pay once.

Download on theApp Store

one-time purchase. no subscription, no ads.

three habits. one day. checked.

four screens, and you're done.

no feed, no badges to chase, no setup marathon. these are the real screens, straight from the app.

  1. today.

    every habit you're doing today, in one list. tap the circle when it's done and your streak shows up right under it. drinking water? tap up to 8.

    today screen: good evening, 4 of 7 habits done; morning run, meditate, read and strength train checked, drink water at 5 of 8
  2. new habit.

    name it, pick an emoji and a color, then say how many days a week and how many times a day. a reminder is there if you want one.

    new habit sheet: emoji grid, five colors, days per week and times per day steppers
  3. all.

    everything you track, in your order. habits you're building sit next to the ones you're quitting, like no reels or social media and no alcohol.

    all habits list including no reels or social media and no alcohol
  4. this week.

    how many habits are active, your best streak, and how much of the week you kept, laid out day by day.

    this week: 7 active, 2 day best streak, 12 percent weekly, completions chart and top habits

rest days don't break streaks.

tell cosas how many days a week a habit needs. a week counts when you hit that number, and your streak is how many weeks in a row you did. set it to 7 and it counts days instead.

try it on six example weeks.

days per week
3 days
6 weekscurrent streak

purple = checked in. green ring = counted in the streak.

cosas on apple watch: today, 5 of 6 habits completed, morning run done

glance. tap. move on.

cosas lives on your wrist too. check in mid-run or mid-meeting and your iphone catches up.

  • quick launch on ultra.set one habit to open straight from the action button.
  • on your watch face.complications show today's progress and your streak, and update the moment you check in.
  • add from your wrist.new habits and edits on the watch show up on your iphone.

the small stuff.

more than once a day.
water, stretches, pages. set times per day and tap up to your goal.
gentle reminders.
one daily nudge per habit, at the time you pick. off until you turn it on.
widgets.
today's habits on your home screen, plus a button in control center.
sign in with apple.
no password to invent, no email list to join.
your data is yours.
download everything as a csv from settings, any time.
pay once.
no subscription, no ads, no upsell screens.

a free book on habits.

the quiet power of showing up is a short, science-backed guide to habits that last: what they are in the brain, why your surroundings beat motivation, and how to come back after you fall off. eleven chapters, 39 pages.

start today.

a small thing, repeated. that's the whole idea.

Download on theApp Store

for iphone. apple watch optional.