The gym. The run. The prayer. The book you said you'd read. Dayone turns what you want into a week you actually keep, with a little cloud that locks in when you do.
7 days free on iPhone and Android. Then €29.99 a year.
Dayonenow
Gym in 30 min
After work, you go. 45 min.
local_fire_department5-day streak
menu_book
ReadKept at 21:40
How did it go?Great
You said you would. Let's go.
self_improvement
PrayKept at 07:04
check
fitness_center
Showed up anywayNew trophy
directions_run
directions_walk
favorite
9:41
Monday, 19 October
Day 23
ios_shareL
0100
Locked in
7 days · 18 of 23 kept
Up next
touch_app
check_circleThat's everything for today.
Rest of today
1 of 4 kept
homeHomecalendar_monthWeekfavoritePromises
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Whatever you promise yourself.
The gym three times a week. Prayer every evening. Twenty pages before bed. Dayone gives each promise a time, a nudge and a reason to keep going, so it stops being something you'll start next Monday.
scheduleIt happens at a set time
Every promise gets its days, its time and the thing you do right before it.
notificationsYou get reminded, not nagged
A heads-up before, a quick "did you keep it?" after. Never more than three a day.
boltYou see it adding up
Your Day count, your week and your cloud all move the moment you tap Done.
Three taps a day. That's the whole system.
1
Make a promise
Say what you'll do, which days and what time. Tie it to something you already do: after work, I go to the gym. That one line is the difference between a wish and a plan.
2
Get the nudge
A heads-up before it starts, and a quiet "did you keep it?" after. Tap Done right in the notification. You don't even have to open the app.
3
Tap Done
Two quick sliders: how hard was it to start, how did it go. Your cloud locks in, your score climbs and next week's plan learns from it.
9:41
Monday, 19 October
Day 23
closeNew promise
What will you do?
directions_runRun 5K
Which days?
MTWTFSS
What time?
remove07:00add
After what?
After my morning coffee
Add promise
Monday 19 October
17:30
Dayonenow
Gym in 30 min
After work, you go. 45 min.
Dayone1h ago
Did you keep it? Pray
Tap Done and your cloud locks in.
DoneSkip today
9:41
Monday, 19 October
Day 24
ios_shareL
In the zone
7 days · 21 of 24 kept
fitness_center
Gym
schedule18:00 · 45 min
How hard was it to start?Easy
How did it go?Great
closeMark as done
homeHomecalendar_monthWeekfavoritePromises
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Meet your cloud.
It shows you how you're really doing. Keep your promises and it puts its headband on. Let them slide and it gets a little rainy. It never nags, it just shows you. Drag the score and see.
Locked in
Lock-in score78
Built for the day you don't feel like it.
Your whole week, one look.
Every promise, every day, in its own colour. Kept ones get a check, missed ones fade. You see the week you're building, not a wall of numbers, and you can plan ahead as far as ten weeks.
local_fire_department5-day streak
Wednesday
fitness_center
GymKept · Went great
check
menu_book
ReadSkipped · Too tired
close
9:41
13 Oct – 19 Oct
Week
chevron_leftchevron_right
0 / 0 kept
Friday
3 promises · 75 min
self_improvement
Pray
Fairly easy to start · Went great
Kept
fitness_center
Gym
18:00 – 18:45 · 45 min
Kept
homeHomecalendar_monthWeekfavoritePromises
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A plan that fixes itself.
Your cloud looks back with you every week: what you kept, what slipped and one change that makes next week easier. Skipped because you were tired? It moves the promise earlier. No time? It makes it shorter. One tap and the plan is updated.
Your week
9 of 12 kept
star
BestGym, 3 of 3
replay
SlippedRead, 1 of 4 · No time
Make Read 10 min for a week?
Apply
9:41
October
Promises
auto_awesomeYour cloud
Your promises
fitness_center
Gym
Mon, Wed, Fri · 18:00 · 45 min
11
menu_book
Read
Every day · 21:00 · 20 min
7
self_improvement
Pray
Every day · 07:00 · 10 min
16
homeHomecalendar_monthWeekfavoritePromises
add
Right on your home screen.
The Up next widget shows what's coming, with Done and Skip right on it. Your cloud wears the promise's colour and talks you into it, with a new line every time. The Lock-in widget keeps your Day count and mood one glance away.
Dayonenow
Did you keep it? Gym
Done · Skip today
9:41
UP NEXT 1/3
fitness_centerGym
18:00 · 45 min
Lock in.
checkDoneSkip
Dayone
Day 2390
In the zone
Dayone
Dayone
Photos
Calendar
Notes
searchSearch
Trophies for showing up.
21 to earn, from your first kept promise to a full year. Some of the best ones aren't about streaks at all.
check_circleFirst promise kept
The first one is the hardest. Done.
fitness_centerShowed up anyway
It was hard to start, and you did it.
wb_twilightEarly bird
Kept a promise before 7 in the morning.
replayDay one again
You came back after a break. That's the real skill.
starPerfect week
Every promise in a week, kept.
favoritePart of you
66 days. Habits take about this long to stick.
military_tech100 promises kept
A hundred kept promises.
workspace_premiumOne year
A year of days you showed up.
The day it gets easy
Day 66
Built on how habits actually stick.
In a study from University College London, a new habit took a median of 66 days to feel automatic. So Dayone counts the days you show up, not days in a row. Your Day count only goes up.
After this, I do that. Tying a promise to something you already do is one of the best-studied tricks in behaviour science. Dayone asks for it every time you make a promise.
It learns from you. Every insight comes from your own check-ins: how hard it was to start, how it went and why you skipped.
No guilt. Missed a few days? "Day one again" is a trophy, not a reset.
Lally et al., European Journal of Social Psychology, 2009. Gollwitzer and Sheeran, Advances in Experimental Social Psychology, 2006.
Your first week is free.
Every feature, from day one. Cancel any time in your App Store or Google Play subscriptions and you won't be charged.
Prices shown in euros. Your store shows the price in your own currency. Dayone reminds you two days before your free week ends.
Questions
I've tried habit apps before and always quit. Why would this one stick?
Most habit apps hand you a checklist and leave the rest to willpower. Dayone plans each promise with a day, a time and something you already do, like "after work, I go to the gym". It nudges you at the right moment, and every week it changes the plan where you slipped. You don't have to become more disciplined. The plan gets easier to keep.
What if I miss a day, or a whole week?
You don't lose anything. Your Day count only goes up, so a bad week can't erase the good ones. Your cloud gets a little rainy, then brightens again with the next promise you keep. Come back after a break and you even earn a trophy for it: Day one again.
I'm busy. Do I really have time for this?
Checking in takes seconds: tap Done in the notification or on the home screen widget. Start with one promise, even five minutes. If you keep skipping because you're out of time, the weekly review suggests a shorter version so it still fits your day.
Will it nag me all day?
No. You get at most three reminders a day, and you choose the kind: a heads-up before, a quick check after, or both. Keep a promise and the rest of that day's reminders for it go quiet.
Can I use it for prayer and faith?
Yes. Pray is one of the starter promises. Set it for the times you pray, every day or on certain days, and tie it to something you already do. It works for anything you want to stay consistent with: prayer, reading scripture, gratitude, fasting.
Is it worth paying for?
The yearly plan works out to €2.50 a month, less than one coffee. If it helps you keep one promise you've been breaking for years, it has paid for itself. And you can try everything free for a week before you pay anything.
What happens to my progress if I get a new phone?
Sign in with Apple or Google and your promises, history and trophies are backed up. Sign in on the new phone and everything is there.
How does the free week work?
You get every feature for 7 days. Cancel before it ends in your App Store or Google Play subscriptions and you pay nothing. Dayone reminds you two days before it ends.