Knuff: Your people
are doing well!

The Knuff App is a simple check-in app that shows you at a glance how the people in your Bubble are doing. One quick check-in is enough—no long messages needed.

Your bubble

How are your Knuffs doing?

On your Bubble map you can immediately see how current the check-ins of your friends are. Whoever has just checked in remains outside in the green area. If the last check-in was a long time ago, the friend moves further towards the center, towards the red area.

Bubble theme "Sardegna"

Your Check-In

Effortless. Just tap.

No more messages, no more calls: Just choose a Knuffling you like, check in, and you’re done. Now your Bubble knows you’re okay. That way, everyone stays up to date and can react if someone doesn’t check in as usual.

Bubbles

Knuff brings everyone together

Create separate bubbles for family, close friends, or neighbors. Everyone in a bubble can see each other's check-in status — private, simple, and reassuring.

Knuff stream view showing group activity
Your Bubble

All your people. All in one place.

Your world is full of people who matter. Knuff brings them all together, so staying connected feels simple.

Grandparents
Margaret Portrait of Margaret, the maternal grandmother Margaret, 68 Maternal grandmother

Margaret, 68

Margarete lives alone and is recovering from hip surgery. She values ​​her independence and loves being able to stay connected to family life through small updates from her family.

See how Knuff helps
Thomas Portrait of Thomas, the paternal grandfather Thomas, 72 Paternal grandfather Janet Portrait of Janet, the paternal grandmother Janet, 69 Paternal grandmother

Thomas, 72 and Janet, 69

Werner and Silke live abroad and love staying in touch with their grandchildren from afar through photos and video clips.

See how Knuff helps
Parents
Sophie Portrait of Sophie, the mother Sophie, 45 Mother

Sophie, 45

Sophie is a busy mum of three who works from home. Knuff helps her know her children are okay and stay connected with colleagues throughout the day.

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Daniel Portrait of Daniel, the father Daniel, 48 Father

Daniel, 48

Daniel is a pilot and often far from home. A quick check-in on Knuff is all it takes to show his partner where he is and give her a little glimpse into his day, without needing to send a message or start a conversation. He can also use a dedicated bubble to let his football friends know when he’s ready for a match.

See how Knuff helps
Children
Olivia Portrait of Olivia, the oldest child Olivia, 19 Oldest child

Olivia, 19

Olivia has just moved to a new city for university. She enjoys her new independence while keeping in touch with her family and roommates.

See how Knuff helps
Noah Portrait of Noah, the middle child Noah, 15 Middle child

Noah, 15

Jakob checks in quickly and easily when he’s out with friends in the evening—with or without sharing his location. That way, everyone knows what’s up without any fuss.

See how Knuff helps
Grace Portrait of Grace, the youngest child Grace, 11 Youngest child

Grace, 11

Emma has recently started going to her new school on her own. Her parents feel reassured when she quickly checks in on Knuff after she arrives.

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Colleagues
Football team
Roommates
School friends

Choose a portrait to discover how Knuff helps.

Made in Germany

Knuff is built in Munich, Germany, by a small, independent team — not a big corporation. Your data stays entirely in Germany, too: we do not use AWS, Google, or other US cloud providers.

Download Knuff on the App Store Get Knuff on Google Play
FAQ

Frequently Asked Questions

What is Knuff?
With Knuff, you stay connected with your loved ones. Members of a bubble check in regularly to quickly show that everything is okay. If a check-in is missed, the other members are notified.We developed Knuff to bring people closer together and give them a good feeling in everyday life - whether between grandparents, children, parents, partners or friends.
Does Knuff replace WhatsApp or iMessage?
No, not necessarily. Knuff complements existing messengers. The focus is on knowing how people in your bubble are doing and informing you if someone has been inactive for a long time. But you can also discuss, share pictures, upload videos and simply stay in good contact with your loved ones.
On which devices does Knuff work?
Knuff is available for iPhone and iPad with iOS 16 or later, as well as Android smartphones.
Is Knuff really free?
You and your Knuffis can use the app for all basic functions free of charge. You can buy some fun extras from the Knuff Shop to upgrade your bubble, such as fresh designs or features that everyone in your bubble can then use. These are simple purchases, no subscriptions. In addition, every Knuff user can acquire Knuffle. Once acquired, you can use these in all bubbles for check-in.
I heard the Knuff app doesn’t offer subscriptions. Is that true?
Yes. Knuff does not offer subscriptions. Instead, features are available through Passes with a fixed validity period. You always remain in full control of your costs: there are no automatic renewals and no recurring charges.
A Pass expires automatically. You are only charged for another Pass when you explicitly confirm the purchase. This means your Pass can never renew without your knowledge.
You can extend your Pass at any time, even before it expires. The additional time is added in full to your current Pass, so none of your remaining paid time is lost.
This allows you to secure additional time in advance while always deciding for yourself if and when you want to pay again.
How does check-in work?
To check in to Knuff in the Knuff Bubble or in the Knuff Chat, click on the hand button. Then select a Knuffling, indicate how you feel, and check in.

You can optionally expand your check-in with:

  • Indicating whether you feel good or bad
  • A personal message
  • Uploading a photo or video
  • Taking a picture directly via the camera
  • A voice message
  • A poll for your group
  • Sharing your current location

    This keeps checking in to Knuff flexible and personal, depending on how much you want to share.
Where is my data stored?
Knuff is operated by a German team. Your data remains in Germany and is stored in our own German data center – not with US providers like AWS, Google or Microsoft.
I have heard that Knuff was developed by a German company and is fully operated in Germany/Europe.
Yes, Knuff is a European product. With great attention to detail, we do not see ourselves as a replacement, but as a very good complement to US mainstream apps.
Who can see my Knuff Check-Ins?
In Knuff you can only be seen by people who are part of the same Bubble as you. Your Knuff Check-Ins are always limited to the Bubble where they are created. Only members of that Bubble can see the Check-Ins, while other Bubbles do not have access to your Check-Ins.

This keeps your Knuff Check-Ins clearly within your selected groups and prevents them from being shared across Bubbles.
Can I choose who sees my Check-Ins?
In Knuff you don’t select individual recipients for each Check-In. Instead, Check-Ins are shared with all members of the Bubble where they are created.

However, you can create additional Bubbles to organize different groups of people. This allows you to control who receives which Check-Ins by choosing the Bubble you post them in.

Each Bubble acts as its own separate group, so your Check-Ins are only shared with the members of that specific Bubble.
What are the Knufflings doing? How do I get them?
Knufflings are the little figures that make the check-in process more personal. During check-in, you can select a Knuffling to accompany your check-in and thus make it more individual.

Knufflings are in-app purchases and can be purchased individually and also given as gifts. Knufflings are personal and after purchase available in all Bubbles without time limit.
What is the Bubble Store?
In the Bubble Store you can specifically expand your Bubble, for example with surveys, appointment scheduling, sharing locations or longer video clips. These functions apply to each Bubble in which they are activated and make collaboration and exchange within the group more flexible.
Are purchases in the Bubble Store a subscription?
In Knuff, purchases in the Bubble Store are not a subscription. They are one-time purchases for a certain period of time. They add up, so you can purchase a period multiple times and the end date will adjust accordingly.
Since they are not subscriptions, nothing renews automatically and you always have control over the costs.
For whom is a Bubble Store Pack activated?
In Knuff, a Bubble Store Pack is activated for the entire Bubble.

Once a pack is unlocked, all members of that Bubble can use the included features.
What does Sponsor mean?
In Knuff, Sponsor means that you purchase a pack for your entire Bubble.

Once you sponsor a pack, it is unlocked for the Bubble and all members can use the included features together.
Does a Bubble pack also apply to other Bubbles?
In Knuff, a pack only applies to the Bubble in which it was purchased or unlocked.

A pack is activated exclusively for that specific Bubble and is not available in other Bubbles.

It is however possible to sponsor Bubble packs in all bubbles via a separate purchase.
Can each Bubble member sponsor a pack?
In Knuff, each member of a Bubble can unlock a feature for the Bubble, which benefits everyone. This means that each Bubble member can buy a pack for the entire Bubble or contribute to unlocking a pack.
How can I delete a bubble?
A bubble is automatically deleted when the last member leaves the bubble.
How do I delete my account?
Tap the head icon in the top right of the app, then your name at the very top of the list > delete account.

Download Knuff

Knuff is available for iOS and Android. Download the Knuff App from the App Store or Google Play.