Where your child's wildest ideas get to happen.

Naniby is a storytelling app for kids aged 4+ where your child creates the story. They invent the hero, steer the plot, and the app illustrates and narrates their their story in real time. You follow along on your phone - see what they're making, help when they're stuck. When they're done, the story keeps going off-screen as a printable book, a bedtime audiobook, or a conversation over dinner.

Naniby speaks English, Polish and German

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Banana Hero and friends on an underwater adventure

Live AI Narration

Banana and Tomato dove deeper, past curious fish (at least four of them) and seaweed that couldn't decide which way to sway. The water turned from sunny blue to the interesting kind of green. And there, glowing on the sand, was a pearl—bright as a Very Small Moon having a Very Big Moment.

Banana"Tomato! That pearl is glowing brighter than Grandma's kitchen light!"

Tomato"Do you think there's a Very Tiny Moon living inside it?"

What is Naniby?

Naniby is a storytelling app for kids aged 4+ where your child creates the story. Two devices work as one: a tablet for the child to explore and narrate, and a phone for parents to guide, scaffold, and stay in the loop—without ads or algorithmic feeds.

Most kids' apps aim to keep children busy. And honestly? Sometimes that's exactly what you need. (We're parents too.)

Naniby is built differently. It begins as something you do together.

The tablet becomes a stage. Your phone becomes the Backstage Pass. Your child becomes a tiny showrunner.

You sit next to them, catching their ideas as they fly and sharing them into Naniby - by voice or text. They direct the story. They change the rules mid-scene. They insist the villain is "actually just having a bad day" and deserves a second chance.

Naniby listens, the AI improvises, and suddenly screen time stops being something they stare at and starts being something they make.

Is it educational? Probably. Is it fun? Definitely.

As your child grows more confident, Naniby will grow with them — until one day, they're telling the stories on their own.

(If you're curious why having a parent in the room changes everything about screen time, there's research on that. It's called Joint Media Engagement, and it's covered in Interesting Stuff)

Why We Built This

Kids aged 4+ don't need more content. They're already bursting with ideas - they just don't have a way to get them out yet. Naniby isn't here to entertain them. It's here to listen to them. The best screen time ends with "look what I made" - not "can I watch another one." And the best version of that starts with a parent in the room. That's it. That's the whole idea.

two devices, one story

How does Naniby work?

Naniby connects a child's tablet and a parent's phone into one shared story session. The child drives the adventure with voice and choices; the parent sees prompts, insights, and conversation starters to extend learning offline. Both screens stay in sync throughout every chapter.

Two devices, one story. The Tablet is where the chaos happens. Your Smartphone is where you keep up with it - seeing what they're creating, understanding what it means, and helping them when they need you.

Creative Canvas

Backstage pass

pick today's theme

What should today's story explore?

courage and confidence

friendship and kindness

problem-solving and creativity

behind the scenes

We set up loose parameters based on your choice - guidelines for the kinds of situations that appear. But the actual story? The characters, the plot, the weird turns? All your child.

Backstage pass

Parent Device: Smartphone View

WHEN THEY'RE STUCK

💭 "What if Banana could inflate like a balloon?"

opens up new possibilities

💬 "How do you think Tomato feels entering the cave?"

explores emotions

moments to notice

Vocab: 'Summit' Mastery

Alex correctly identified the 'summit' as the highest point of the mountain, showing advanced spatial vocabulary.

Social: Group Leadership

Alex demonstrated leadership by inviting Tomato to share the map when they were lost in the snowy forest.

Offline Bridge

Conversation Starters

"How did Banana feel when they reached the top of Mount Grumble today?"
"What would you do if you and Tomato found a secret cave?"

Offline Activity Tip

Build a "mountain peak" out of living room cushions for a real-life climb together!

Why does parent-in-the-loop matter?

Parent-in-the-loop means you stay involved without hovering. Naniby gives you scaffolding tips, developmental insights, and offline activities—so screen time becomes shared time and stories continue at the dinner table. You guide the journey with gentle prompts; your child creates the story.

Transforming the world's most powerful imagination into lifelong skills.

"Give voice to their wildest ideas as their first creative partner"

Setting the Stage

The Backstage Pass

First thing you do: pick a theme. Courage. Kindness. Problem-solving. Or just creative chaos. Think of it as choosing the weather, not the route - the story still goes wherever they take it. And if they hit a wall - the app gives you something to throw back at them: "What if the hero had a secret power?" or "How do you think the dragon feels right now?"

"Give voice to their wildest ideas as their first creative partner"

"Hidden growth behind every magic word."

the invisible structure

Story Stems

Behind every story is a structure - loose enough for chaos, sturdy enough to hold together. We use narrative frameworks designed by child development experts - Story Stems (there is an article about it in our Interesting Stuff section, if you're curious) - to help kids explore big feelings through small characters. A dragon battle becomes practice in standing up for yourself. A puzzle becomes trying different approaches. Your child won't notice - they're too busy deciding if the treasure chest should talk. But you might notice stories help them work through things without feeling like lessons.

"Hidden growth behind every magic word."

Hero Creation

Audio and Text Input

AI Narration added

The Magical Storybook

"Fear no night. Right. Easy for them to say," thought our hero, who was currently very small, slightly round, and standing in a forest that was definitely Too Dark. The lantern helped. A bit."

"If they can say it, they can be it."

the story unfolds

Their Story, Their Rules

Every story needs a hero. Your child makes theirs. Maybe it's a banana in a cape. A cloud with anxiety. A dinosaur afraid of its own shadow. We've seen weirder. Or maybe it's already sitting on their bed. Snap a photo of their favourite toy, a crayon drawing, a Lego build they made you admire three times already. Then that hero steps into a world that reacts to them. The narrator tells the story, your child steers it with their ideas. "What if the hero doesn't want to fight today?" The story adjusts. "Can the villain just be tired?" New scene. Different tale. The story doesn't have a "right" path. It just has the path they invent.

"If they can say it, they can be it."

"Understand the world they're building."

what just happened?

Moments to Notice

After each story, we'll show you what your child was working on - even if they didn't realize it. "Alex built a bridge for the shy monster." (Problem-solving + empathy) "Sam decided the dragon was just lonely." (Reframing conflict) "Jordan gave the hero a friend who's 'good at being quiet.'" (Understanding strengths) We're not grading. We're just pointing out the moments where your child did something interesting - so you can see how they think and what matters to them right now.

"Understand the world they're building."

beyond the screen

The Offline Bridge

The story doesn't end when the screen does. The tablet goes to sleep (it was feeling very sleepy), but the adventure wakes up. We give you three ways to keep it going - so "tablet time is over" doesn't end in negotiations with a tiny lawyer:

"The story follows them off the screen."

Printable DIY Mini-Books

We turn today's digital adventure into a printable DIY mini-book. They can fold it, color it, maybe spill something on it, and add it to their shelf next to the "real" books. Physical proof: "I made this."

Personalized Audiobook

High-energy creation is for daytime. Gentle listening is for bedtime. We convert today's adventure into a calm, screen-free audiobook. Same hero, same story, just whispered instead of shouted.

Physical Play Kit

Avoid the meltdown when the screen goes off. We provide conversation prompts and easy games based on today's plot. "What does the dragon do next?" "Build the hero's house from pillows." Keep the story going without the screen.

Built for families, not advertisers

Naniby is built for families, not advertisers. No ad feeds, no data resale, and age-appropriate content designed with child-development principles. Your family's stories and data stay private and under your control. We never sell attention or personal data to third parties.

Parent-in-the-Loop

You stay in the loop. See the stories they're building, the problems they're solving, the worlds they're inventing. Not to supervise but to witness. This is their imagination. You just get a front-row seat.

Intentional Play

Most apps are designed to never let go. Naniby is designed to stop. Clear endings. No autoplay. No "one more episode" loops. We help kids finish what they started, then move on.

Data Privacy

Their ideas stay theirs. We don't sell data. We don't train AI on their stories. We don't let advertisers in. We just keep it safe, private, and locked down.

Give your child a story that listens

Join early access and give your child a story that listens—personalized adventures that grow with their interests, with you guiding every chapter. Sign up for the waitlist; we'll invite pilot families in waves. No payment is required during the early-access phase.

Your child speaks, and Naniby turns their ideas into an illustrated story that unfolds as they imagine it. Join early access to be one of the first families to try it.

Request Early Access

Let's build something worth their imagination.

"Hi!"

A note from the founders

Naniby didn't start as a startup idea.
It started at home.

It began with my son constantly changing stories - adding characters, skipping parts, taking things in unexpected directions. He wasn't looking for more content. He was trying to express what he already had in his head.

Those moments became the starting point.

From early sketches to first versions, he actively shaped what we were building. He tested things, reacted instinctively, and showed us what felt right and what didn't. In that sense, Naniby was co-created with him.

Naniby is built with them - balancing a child's imagination, a parent's intent, and the care needed to build this responsibly.

Naniby helps children turn ideas into stories and gives parents a way to stay part of that process. What starts on the screen often continues elsewhere - as conversations, drawings, printed stories, or shared moments later in the day.

Naniby is a starting point.
A place where ideas take shape and move naturally into real life.

Founder

Krzysztof Tarasiewicz

Founder

Daniel Wiliński

Co-Created At Home

The Naniby Family