A habit tracker for one, two or a few
Tick off the day with the people you share it with.
Jatkuu is a small, private habit tracker. Start a room, invite your partner or a few friends with a link, and see each other's habits, streaks and moods every day. No account, no password, works offline.
Free. Add it to your Home Screen and it feels like an app.
Tuesday
Good evening, Mia
- 🚶Evening walkEach of us · 12 day streak
- 📵No phones at dinnerEach of us · together 4 nights
- 🪴Water the plantsAnyone · Jonas did it
- 📖Read 10 pagesMine · 3 of 5 this week
- 🧘StretchMine · weekdays
How was today?
How it works
- 1
Start a room
Pick who it is for: just you, the two of you, friends, family or a team. Your phone creates your identity. Nothing to sign up for.
- 2
Share the link
Invite with a link, a six-character code or a QR. Only the people you invite can open the room.
- 3
Tick, together
Each day shows your habits and theirs. A tap marks one done. Streaks, moods and a weekly look back come along.
Who it is for
One room per group of people. Be in as many as you like; nothing crosses over between them.
- Just meQuiet, offline, no account. The same tracker without anyone else in the room.More
- CouplesChores, workouts, evenings without phones. See your partner's day and cheer them on.More
- FriendsAn accountability group of three or four. Shared goals anyone can tick.More
- FamiliesEveryone's routines on one page, with habits that each of you does.More
- Small teamsDaily practices for a team of five or ten, without a workspace to administer.More
What you get
Yours, each of yours, or anyone's
Keep a habit to yourself, give everyone in the room their own copy, or share one that counts when anyone does it.
Streaks that forgive
One missed day a week can count as skipped, so a bad Tuesday does not erase a good month. Per habit, your choice.
Mood and energy
Two taps in the evening. Over weeks you see what moves them, and so can the people you choose.
Pings and reactions
A nudge when your partner is behind, a reaction when they are not. Nothing to type.
Off-schedule and catch-up
Did it on the wrong day? Count it anyway. Missed one? Add a reason and move on.
A weekly look back
Every week a short summary of what went well. The assistant that writes it stays off until you turn it on.
Private by construction
- No account, no password. Your phone holds a key; a 12-word phrase or an optional email gets you back in.
- A room opens only with its link. There is no directory, no search, no public profile.
- Offline first. Every tap is saved on the phone and synced when you are back.
- Your data, your call. Export it as a file or delete it, in Settings, at any time.
- Runs on Cloudflare under the GDPR. The optional assistant runs there too, not at another company.
- Free while it is small. No ads, no selling of data, no growth team.
Details in the privacy notice and the FAQ.
Five looks, light and dark.
Pick one here and this page changes with it. The app remembers your choice; light and dark follow your phone.
Questions people ask
How does my identity work, and why is there no password?
When you first open Jatkuu, your device creates a key pair. The public key is your identity in a room; the private key never leaves your device and signs every change you make, so nobody can act as you. There is nothing to log in to, so there is no password to remember or leak. Your backup is a 12 word recovery phrase that you can show, copy or save as a file in Settings.
Can I use Jatkuu on my own?
Yes. Pick "Just me" when you start. You get the same habits, streaks with forgiveness, catch-up reasons, mood and energy, insights and the weekly summary, without anyone else in the room. When you want company, the Room tab offers to turn it into a room for two or a group; your habits and history stay exactly as they are.
Can I be in more than one room?
Yes. One identity can be in any number of rooms: one with your partner, one with friends, one with the family. Tap the room name on the Room tab (or Settings, Room, Your rooms) to switch, start another room or join one with a link or code. Anyone can start a room, whether or not they are an admin somewhere else. Each room has its own habits, its own name and look for you, and its own admins; nothing crosses over between rooms. Rooms you joined on another device appear after tapping the refresh line in that list.
Does Jatkuu work offline?
Yes. Every check-in is saved on your device first and shows up immediately. When you are back online, Jatkuu syncs your changes to the room and pulls in your partner's. Two devices editing at the same time merge cleanly; the latest change to the same item wins.
How do streaks and the forgiving streak work?
A streak counts consecutive scheduled days (or periods, for habits like “3 times a week”) that you completed. Skipping a day with a reason neither breaks nor extends the streak. Missing a day breaks it, unless the habit has the forgiving streak turned on: then one missed day per week counts as skipped and the streak continues. You can turn this on or off per habit in the habit editor.
What does “day starts at 4:00” mean?
A late evening should still count as today. With the default of 4:00, anything you do before 4 in the morning belongs to the previous day. Checking in at 1:30 on Tuesday counts for Monday. You can change the hour in Settings under your profile.
Start today. Invite tonight.
A room takes a minute. The first habit takes ten seconds.