KoomuPicture books that listen back.
Koomu reads leveled English picture books with your child and lights up every word. Then it's their turn: they read aloud, and Koomu hears which words they got right.
- Speech checked on the device
- No ads, no chat
- Phone & tablet
Listen, tap, read, check
Every book follows the same four steps, so even young children know what comes next.
- 01👂
Listen
A warm voice reads the page and each word lights up as it's spoken, so sounds and letters connect.
- 02👆
Tap
Tap any word to hear it on its own, as many times as your child likes.
- 03🎤
Read
Your child reads aloud. Words they say turn green, and each sentence earns up to three stars.
- 04✅
Check
A short listening quiz at the end of the book shows what stuck.
Read the whole book, without leaving the page
In read-along mode the book stays on screen. The next sentence gets a soft frame, Reeko listens, and the page turns by itself when your child is done.
- Not sure how it sounds? One tap and Reeko reads it first.
- Pause, skip or stop at any time.
- At the end, play back your child's own reading.
A friend in every story
Koomu's own books star Reeko, a curious little bird, and friends like Pip. Books are leveled, from first words like “I can jump” to short stories about kites, snow days and a trip to the moon.
Small habits, every day
Word book
New words from each book go into a word book, with quick reviews spread over the following days.
Listening time
Play books back to back, like an audio story, with a timer that stops on its own.
Stickers & badges
Finish a book to earn its sticker. Read on more days to collect badges.
Your own books
Parents can turn a PDF picture book into a read-along book, with narration and word highlights.
The right level
Tell Koomu your child's age and it picks a starting level that fits.
Phone & tablet
Made for both, in portrait and in landscape.
Made to be safe for kids
Koomu collects as little as it can. What can stay on the phone stays on the phone.
Their voice stays on the device
Reading is checked on the phone or tablet itself. Recordings are kept on the device for playback and never uploaded.
No ads, no chat
No ads, no social features, and no third-party analytics or advertising SDKs.
Healthy screen time
Set a daily limit and Koomu reminds your child to take a break. A weekly report shows what they read.
Questions from parents
Who is Koomu for?
Children aged 3 to 10 who are learning English. Books are leveled, and Koomu suggests a starting level from your child's age. You can change it at any time.
Is my child's voice uploaded?
No. The read-aloud check runs on the device, and recordings stay on the device so your child can hear themselves. You can delete them in the parent area.
Does it work offline?
Yes. Books you've downloaded can be read offline, and the read-aloud check works without a connection too.
Which devices are supported?
iPhone, iPad, and Android phones and tablets.
How much does it cost?
Koomu is free to download and comes with free books to start with. Pricing for the full library will be announced at launch.
When can we get it?
Koomu is being tested now and is coming soon to the App Store and Google Play.
Coming soon to the App Store and Google Play
Koomu is being tested with families now. Check back here for the launch.