Free trial
Free
Once per account, for the life of the account. Not a monthly free tier.
- 70 questions in total, once
- 4 pictures in total, once
- 5 voice minutes in total, once
- Stays on one device
Included with the app
For children aged 3–15
A spoken conversation your child can interrupt mid-sentence — plus 172 narrated mini-lessons, 52 illustrated stories, and a parent zone that keeps a grown-up in charge of every minute of it.
Not in the stores yet. Every account starts with a free trial. No ads, ever.

No download counts, no star ratings, no quotes from parents: Knoo is new and has none of those to show you. Here is what it does have.
And here it is running. Real screenshots from the iOS build, not mockups.
52 stories, read aloud
Five art styles to pick from
It says it is an AI, before it talksFive things it does
Every one of them is written down before your child gets there. The lessons, the stories and the puzzles are authored content, not a model deciding what to teach on the spot.


Voice calls are a real conversation, not a walkie-talkie. Your child speaks, Knoo answers out loud, and they can cut in the moment they think of something better — no waiting for it to finish.
Sunny · Maple · Rocket

172 mini-lessons, every line narrated so a child who cannot read yet can still take one. Check-ins are a tap, and 344 of them have no wrong answer at all — the star is for finishing, never for scoring.
172 lessons

52 illustrated stories — bedtime, classic, and twelve that branch where your child picks what happens next. A sleep timer fades the narration out instead of stopping dead.
52 stories

Who Am I? gives clues and waits for a guess — 280 puzzles across four age bands. The answers sit in a written bank the model never sees, so the game cannot invent one.
280 puzzles

Describe anything — a dragon on a skateboard, the view from your street — and Knoo draws it, in whichever of five art styles your child picks.
5 art styles
Learning
Five subjects across four age bands, 6 lessons each, in a fixed order written ahead of time — so it goes somewhere instead of wandering.
| Subject | Ages 3-5 | Ages 6-8 | Ages 9-12 | Ages 13-15 |
|---|---|---|---|---|
| ReadingLetters and sounds up to reading for meaning. | 6 lessons | 6 lessons | 6 lessons | 6 lessons |
| MathCounting and shapes up to reasoning with numbers. | 6 lessons | 6 lessons | 6 lessons | 6 lessons |
| ScienceWhy the sky does that, and how to find out. | 6 lessons | 6 lessons | 6 lessons | 6 lessons |
| WordsVocabulary that sticks, used in a sentence. | 6 lessons | 6 lessons | 6 lessons | 6 lessons |
| CreativityMaking things up on purpose, and finishing them. | 6 lessons | 6 lessons | 6 lessons | 6 lessons |
Swipe the table to see all four age bands.
344 check-ins across the library have no correct answer at all — the player draws no cross, because there is nothing to be wrong about. Stars are awarded for finishing a lesson, never for scoring well on it.
All 172 lessons are narrated line by line, so a four-year-old who cannot read yet can take the same lesson as a nine-year-old who can.
Stories
Fifty-two stories written in advance, each with its own cover illustration. Your child reads them or is read to.
The shelf
Fifty-two stories, 518 passages of them. Twelve stop and ask your child what happens next.

End of story, plus five minutes, plus fifteen, or off. The countdown only runs while the story is playing, and the narration fades out rather than cutting mid-word.
Thirty-three choice points across the interactive stories, and 99 passages your child only ever sees if they pick that way.
Choose a story from the parent zone, add a note in your own words, and it arrives in your child’s app marked as being from you.
Everything above is your child’s half of the app. Everything below is yours.
Safety
Three things, in this order, every time your child sends a message.
Every message a child sends is run through a safety classifier before Knoo is allowed to answer it — not after.
When something serious comes up, Knoo does not improvise. It reads copy written by people, in the wording chosen for that child's age, and points to more than one grown-up they could tell.
The moment is logged as a safety alert in your parent zone, and an urgent one is emailed to you. The alert goes to the parent, never to the child.
A word about badges. Pages like this one usually carry a row of certification logos right about here. Knoo does not hold any, so this page does not show any. COPPA-aligned, PIN-protected and ad-free are things we built; they are not awards anybody gave us. If Knoo is ever certified by someone, we will name them.
Parent zone
Behind one PIN: when Knoo is allowed to be open, for how long, what was said, and what got flagged.
Set the hour Knoo says goodnight. A 30-minute wind-down comes first, and you can grant one 10-minute extension a night.
Pick the days and the window. Knoo stays shut during class and opens again after.
Anything from 15 minutes to 4 hours a day, or no limit at all.
Weekends only, weekdays only, or whichever days you choose.
Read the last 30 days of your child's chats, grouped by day, on your own device.
Every flagged moment, sorted by how serious it was. Urgent ones also arrive by email.
Pick a story from the library, add a note, and it lands in your child's app from you.
The parent zone sits behind a PIN with a lockout on repeated wrong tries, and the PIN hash is never readable by the app.
Pricing
Paid quotas reset every week. The trial is a one-time allowance for the life of the account — we would rather say that here than let you find it out later.
Free
Once per account, for the life of the account. Not a monthly free tier.
Included with the app
$14.99per month
$89.99per year
Quotas reset every week.
Quotas reset every week. Saves $89.89 against twelve monthly payments.
Available in the app
$39.99per month
$249.99per year
For more than one child, or a heavy talker.
Saves $229.89 against twelve monthly payments.
Available in the app
Every plan, trial included, gets all 172 mini-lessons and 52 stories, every parent control and safety alert, no ads, ever. Prices are in US dollars and are billed through the App Store or Google Play once Knoo is listed; you cancel there too.
Questions
Ages 3 to 15. The app asks for your child's age once and then adapts to one of four bands — 3–5, 6–8, 9–12 and 13–15. The band decides which lessons, stories and puzzles they see, how long the answers are, and the exact wording Knoo uses if a difficult subject comes up.
Either. A voice call is a real spoken conversation: your child talks, Knoo answers out loud, and they can cut in mid-sentence without waiting for it to finish. There are three voices to pick from — Sunny, Maple and Rocket. Typed chat works the same way, just quieter.
Three ways. Every message is classified before Knoo is allowed to answer it. Serious subjects get scripted copy written by people rather than anything the model makes up. And Knoo never sends a link or names an outside website — that rule is enforced on its way out, not left to the model's judgement.
Yes. The parent zone keeps the last 30 days of chat transcripts, grouped by day, on your device. Anything the safety classifier flagged is listed separately as an alert, and urgent ones are emailed to you as well.
No, and we are not going to pretend otherwise. Knoo is COPPA-aligned, PIN-protected and completely ad-free, with no advertising or analytics SDK anywhere in the app — but it holds no third-party safety certification, so you will not find a certification badge on this page.
They are written down. 172 mini-lessons, each one a fixed script with its own narration, plus 280 Who Am I? puzzles whose answers live in an authored bank the model never sees. A model does not decide whether your child's guess was right; the code does, by checking the written answer.
Premium is $14.99 a month or $89.99 a year. Max is $39.99 a month or $249.99 a year. Before either, every account gets a one-time free trial — 70 questions, 4 pictures and 5 voice minutes, once, not every month.
No. There is a one-time free trial so you can see the app before paying, and it does not reset. We would rather say that plainly than call it a free tier and let you find out later.
On Premium and Max, yes — those plans sync your child's progress to the cloud so it follows them between devices. The trial keeps everything on one device.
Knoo is not in the App Store or on Google Play yet. The badges on this page will become live links the day the listings go up.
The app is built and the library is full. The store listings are the last thing left.