1. Install KiddOS
Free download from the App Store or Google Play. The core experience is free forever, with no account, no signup, and no email required.
Available now
KiddOS, a safe pretend phone app for kids
A safe pretend phone app for kids.
Install KiddOS, lock it to the screen, and hand over pretend calls, messages, books, KidTube, music, games, Buddy, and avatars — with no ads, no tracking, and no open web.
Pretend calls
Books + KidTube
Buddy + avatars
No ads
No tracking
App lock
No Ads
No Tracking
App Lock
Built by a parent
Built by a dad for his daughter's first phone moments.
KiddOS started from the everyday moment a child wants your phone before they are ready for the real one. It is designed for safe pretend play first: no account, no cloud, no ads, no tracking, and a lock that keeps the app on screen.
How it works
Three steps. Five minutes.
KiddOS is an app you install on your phone and lock onto the screen. The lock is the whole trick — once it's on, the Home button stops being a way out.
2. Lock it to the screen
Turn on Guided Access (iPhone, iPad) or App Pinning (Android). A tap on Home can't escape to your real apps, messages, or browser.
3. Hand it over
They get a pretend phone with calls, messages, books, videos, music, and games. You get your phone back when you want it.
Grows with them
Choose their age mode.
The home screen grows from Baby to Toddler to Preschool, then Classic Phone and All Apps when your child is ready for the real-phone feel.
Baby mode
Fewer choices, bigger taps, and simple sound-and-picture play.
Toddler mode
More discovery with animals, colors, photos, notes, books, and KidTube.
Preschool mode
Folders, app shop choices, pretend messages, music, games, and creative tools.
Classic Phone mode
A real-phone-feel layout after Preschool, still inside KiddOS safety.
All Apps mode
The full app view when your child is ready for the widest KiddOS experience.
Meet Buddy
The friendly mentor at the center of KiddOS.
Buddy greets your child by name, has a different hello for every app, and watches their finger with expressive eyes. He celebrates when they finish a story, helps the room dim at bedtime, narrates pretend sending and receiving, and speaks the family's chosen language.
Your child designs their own avatar too: Buddy's student. Friends see each other's avatars in nearby play.
Personal without accounts
Buddy and the avatar make KiddOS feel like theirs while everything stays on the device.
Read-along storybooks
Stories they already love.
KiddOS includes classic read-along storybooks, and Buddy celebrates when a story is finished.
Goldilocks
The Three Little Pigs
The Tortoise and the Hare
Brave Robin
The Little Princess
Princess Forest
61 languages
Tap to hear it in your family's language.
KiddOS supports 61 language choices for speech and play, so pretend phone moments can feel familiar at home. The speaking voice can differ from the display language.
61
language options
20+
alphabet and phonics sound packs
Built for families around the world
61 choices
🇺🇸
🇪🇸
🇫🇷
🇩🇪
🇮🇹
🇵🇹
🇳🇱
🇷🇺
🇸🇦
🇮🇳
🇨🇳
🇯🇵
🇰🇷
🇮🇩
🇹🇷
🇻🇳
KidTube
Only the videos you choose.
KidTube is built for the parent who wants safe video without the algorithm. Parents approve the channels and playlists, saved videos work offline, and there are no random videos.
- No random videos
- No open internet
- Parent-picked library
- Saved videos can play offline
Parent questions
Quick answers before you install.
Is KiddOS an app or a separate phone?
KiddOS is an app you install on your iPhone, iPad, or Android phone. When you hand the phone to your child, you lock them into KiddOS so they get the feeling of their own phone without touching yours.
Can my child exit and use the real phone?
Not when you turn on the phone lock. iOS Guided Access and Android App Pinning are free, built-in features that keep your child inside KiddOS until you enter your passcode or use your fingerprint. The 5-minute parent setup guide walks through both, step by step.
Does it need the internet?
No. The mini-apps, pretend calls, pretend messages, music, books, and saved KidTube videos all work offline. There is no open web inside KiddOS.
What does it cost?
KiddOS is free to install, and the core experience is free forever. Star Pass is one optional subscription that unlocks all premium apps. There are no ads either way, and you can cancel anytime.
Does it have ads, tracking, or accounts?
No ads, no tracking, no cloud, and no account sign-up. KiddOS does not run advertising, does not require an email or login to use, and everything stays on the device. Uninstall KiddOS and it is gone.
Who's Buddy?
Buddy is the mentor at the center of KiddOS: he greets your child by name, has a different hello for every app, follows their finger with his eyes, celebrates story finishes, helps bedtime wind down, narrates pretend sending and receiving, and speaks the family's chosen language.
What ages is KiddOS for?
KiddOS has five age modes — Baby, Toddler, Preschool, Classic Phone, and All Apps — that scale up as your child is ready.
Can my child accidentally call or text someone?
No. Phone, contacts, and messages inside KiddOS are pretend-only. With the phone lock on, your child also can't reach your real Phone, Messages, or Mail apps.
What about KidTube — is it YouTube?
KidTube is a parent-picked video player, not YouTube. There are no recommendations, no autoplay rabbit holes, and no random videos. You pick the library; saved videos play offline.
What languages does KiddOS support?
61 language choices, including English, Spanish, French, German, Mandarin, Hindi, Arabic, Japanese, Portuguese, and many more — so pretend play can happen in the language you speak at home.
You help decide
Vote on what we build next.
KiddOS is built for your family, so you get a say. See the most-wanted leaderboard, suggest your own idea, and check off everything we've already shipped. A quick email confirmation keeps it spam-free.
Get KiddOS today.
Free to install. The core experience is free forever, and Star Pass is optional. Still deciding? Get the 5-minute setup guide for iPhone and Android.
Parent setup