A streak only the two of you can keep.

Knot is the habit tracker for two: one habit, two people, one shared streak. You both check in every day. If one of you skips, it breaks for both.

For iPhone, iPad and Apple Watch. Knot is in testing and not on the App Store yet. Test invites are sent by email.
Knot app: the knot Running or strength training with Mara, 46 days in a row, the check-in button with photo and the last 31 days

Alone, the streak breaks. Together, it holds.

A knot is one habit plus one person. As long as you both check in every day, the streak grows. If one of you misses, it drops to zero for both. The other person notices right away, so quietly giving up is not an option.

  1. First, you tie the knot

    Pick a habit and a grace period after midnight. You get a code and a link.

  2. Then you invite your person

    Send them the code or the link. Once they join, your shared streak starts.

  3. Every day, you both check in

    A tap, or a photo as proof. Miss the window and your strand turns yellow.

  4. If it breaks, it breaks for both

    No check-in and no grace left: back to zero. Once a month a splice saves a missed day.

This is what Knot looks like.

One card per knot, one number that counts. Red means time is running out. No feed, no points, no guessing.

Knot app: list with two knots, running at 46 days and piano at 8 days
Knot app: the knot is fraying, a red countdown runs down the grace period, with buttons to nudge and to use a splice
Knot app: statistics with the hold rate per weekday, the longest streaks and badges

Your knots

The streak in big numbers, and who has already checked in.

When time runs short

After midnight the grace period counts down. Nudge or rescue the day.

What you achieved

With Knot+: the whole year, your weekdays, badges.

The screenshots show the German version. Knot follows your device language and speaks English and German.

Everything for a shared habit.

The whole app is one decision a day. No points, no leagues, no flood of notifications.

Grace period and splice

After midnight you still have up to 2 hours to save the day, up to 6 with Knot+. And once a month a splice rescues a missed day, six times with Knot+.

Nudges

A gentle push when the other person hasn't checked in yet, shown right on their card. With Knot+ in your own words.

Photo proof

Camera or library. The others in the knot see the picture and can keep it in their collection.

A chat per knot

Messages disappear after a period you choose, from one hour to 30 days. Tap Keep on the ones that should stay.

Several knots and groups

One knot is free. With Knot+ up to five, and groups of up to six people who all check in daily.

Apple Watch and Siri

Check in from your wrist or with a Siri shortcut. Widgets for home and lock screen come with Knot+.

One profile, all devices

With the same Apple account, iPhone and iPad use the same Knot profile automatically.

Works offline

Your latest knots and photos show up instantly and sync once you are back online.

Free for everyone. Knot+ is optional.

Knot stays free: one shared streak with chat and photo proof. Knot+ is for streaks that must not break, or for more than one.

YearlyBest price: about €2.08 a month
€24.99
3 monthsabout €3.00 a month
€8.99
Monthlybilled every month
€4.99
FamilyPer year, for up to 5 people (Apple Family Sharing)
€39.99

Billed through your Apple account, cancel anytime there. Prices in euros; the App Store shows the price for your country.

Questions.

What is Knot?

Knot is an app for iPhone, iPad and Apple Watch that lets two people keep a daily habit together. You share one streak: when you both check in, it grows. When one of you misses a day, it breaks for both.

Is Knot a habit tracker for couples?

Yes, and not only for couples. A knot connects you with one fixed person: your partner, a friend, your brother, a colleague. With Knot+ you can also build groups of up to six people.

How does a shared streak work?

A bit like a friend streak on Duolingo, but for a habit you pick yourselves. Every day you both check in, with a tap or a photo. You have until midnight plus a short grace period. If someone is still missing then, the streak goes back to zero.

Can Knot be my accountability partner app?

That is exactly what it is for. The other person in your knot sees right away whether you checked in today, and can send you a nudge. Every knot has its own chat as well.

What happens if the other person quits?

You get a notice, with an optional goodbye message. A two-person knot stays with you and waits until someone new joins with the code. The streak then starts at zero.

Do I get push notifications?

Yes. Knot tells you when someone checks in, nudges you, writes or reacts, and when your streak is about to break. Reminders for your own check-in are set in the app.

Is Knot available for Android?

No. Knot runs on iPhone and iPad, with a companion app for Apple Watch. Both people in a knot need an iPhone or iPad.

What does Knot cost?

Knot is free: one knot for two, with chat and photo proof. Knot+ protects your streak better (six splices instead of one, up to 6 hours of grace), shows the whole year with stats and badges, and adds more reminders, custom app icons and colors, widgets, posters, up to 5 knots and groups. From €4.99 a month or €24.99 a year, billed through your Apple account.