Free · Ad-free · Made for the Kids Category

Become a Cyber Guardian.

A free superhero adventure that teaches kids ages 6 to 12 real online safety and cybersecurity skills like strong passwords, spotting scams, and protecting privacy. Learning is disguised as a hero's quest.

Download on theApp Store
Scan to download Byte Guardians on the App Store Scan to download on iPhone & iPad
No ads No in-app purchases No tracking Works offline No data collected

🛡️ An online safety app that takes its own advice. Zero ads, zero tracking, and zero data ever leaves the device, and that is verifiable. It is the safest place for your kid to learn to stay safe.

Why kids & parents love it

Real skills, hidden inside a real game.

Byte Guardians is not a quiz with a cape. It is a genuine action platformer. You run, jump, glide, and battle, and every world quietly teaches a real online safety skill.

🎮

Learn by playing

Ten action-packed worlds turn passwords, phishing, malware and privacy into hero missions and hands-on puzzles.

🔐

Safe by design

No accounts, no logins, and no outside tracking, ever. Nothing your child does leaves the device.

👨‍👩‍👧

Built for families

A parent-gated hub shows what your child is learning, mapped to recognized digital citizenship standards.

Accessible play

Larger text & controls, reduced motion, colorblind-friendly markers, controller support and an optional Assist Mode.

Meet the Guardians

Three heroes. One mission.

Play as Crypto and his team as they defend the Byteverse and learn to stay safe online.

Crypto, the cyber superheroCryptoThe brave young hero who stays calm under pressure.
Gadget, the cyber dogGadgetA loyal cyber dog who sniffs out danger.
Robo, the helper botRoboA friendly helper bot with a knack for clues.

The curriculum

Ten worlds. Ten superpowers.

A complete digital citizenship journey. Each world is one big idea, a themed boss, and three hands-on puzzles.

1
Password PeaksStrong passwords & passphrases
2
Phishing ForestSpotting phishing & fake messages
3
Firewall FortressSafe connections & firewalls
4
Encryption CavesHow encryption protects secrets
5
Privacy PlainsProtecting private information
6
AI AcademySpotting AI fakes & fact-checking
7
Malware MarshMalware & safe downloads
8
Scam CityOnline scams & safe shopping
9
Social SquareKindness & social media
10
Digital GalaxyPutting it all together

Inside the Byteverse

See it in action.

Byte Guardians home screen The ten-world map of the Byteverse Platforming gameplay in Password Peaks Gameplay in Scam City

Educators & libraries

A free classroom-ready cyber safety program.

Aligned to ISTE digital citizenship and SEL standards, built for grades 3 to 8, fully offline, with zero data collection, so it is approved by IT by design. A free home for online safety lessons.

For Teachers →

Get started

Give your kid a real superpower: staying safe online.

Free on iPhone & iPad. No ads, no purchases, no catch.

Download on theApp Store
Scan to download Byte Guardians Point your camera to install