Lessons with video animation
How a packet travels, the OSI layers, subnet maths — you see it all step by step in animation. You can pause, rewind and change the speed.
Unlock the secrets of networking through play — from bits to IPv6.
From bits and binary to IP, subnetting, routing and IPv6. Every lesson has a video animation, 10 worked examples and a game. You build a real network yourself, and at the end you get a certificate with a QR code.



Theory, animation, exercises and practice in one place. In Uzbek, Russian and English — simple and fun.
How a packet travels, the OSI layers, subnet maths — you see it all step by step in animation. You can pause, rewind and change the speed.
10 examples in every lesson — solve them yourself first, then check the solution.
Bit lights, packet rain, firewall, subnet matching… Pass the game and the next lesson unlocks.
Place computers, switches, routers and servers, connect cables, and configure IP, VLAN, DHCP, DNS and firewall. Send a ping and watch the packet's path in animation.
Tap the packet during the animation to open its Ethernet, IP and TCP/UDP layers. Fields changed by the router are highlighted in yellow.
Find the hidden faults in a broken network: a cut cable, wrong IP, VLAN, gateway, firewall. 12 levels plus an endless mode.
An attacker connects to your network — defend it with a firewall, port security and DHCP snooping.
5 questions every day. At each streak milestone you get a bonus, and your streak never drops below it.
Ask about anything unclear — the tutor shows it with an animation. Send the network you built to a friend with a QR code.
Open the app and tap one big “Continue” button. The app takes care of the rest.

On your first visit you choose the Easy or Hard path. The home screen always shows which lesson you are on and your next step.
The topic is explained in plain language, then a video animation shows the process step by step.
Solve each example yourself first, then tap “Show solution”. Use the numbers to jump to any example.
You have 3 tries. No mistakes — ★★★. If you get stuck, “💡 Show answer” marks the right answer with a green frame.
Build what you learned the same day with your own hands: add a device, connect a cable, set an IP and send a ping. If something is wrong, the lab explains why.
The daily task is 5 questions. At streak milestones (5, 10, 20…) you earn bonuses and your rank grows.
One of the app's first games. Switch on the lights to build the target number — and binary just clicks.
See how a packet changes at every hop. Tap the packet to open its layers:
Paths, stars, streaks and ranks — every day they move you one step forward.
You choose a path once for the whole course, and you can change it later.
Every game gives you 3 tries. Replay to improve your score.
Complete the daily task and your streak grows. Reach a milestone to get a gift — and your streak never drops below it.
🎁 With a bonus you get “Show answer”, +1 life and lab hints without ads.
One lesson a day and in 16 weeks you become a network engineer. Modules unlock in order.
When you finish the course, the app issues a certificate with your full name. Scan its QR code and this very site confirms it is genuine.
The latest version is always here. If the app shows “A new version is out”, update from this page — your progress is kept.
Tap “Download APK” or scan the QR code with your phone camera.
If your phone asks: Settings → turn on “Install unknown apps” for this browser.
Choose your path and tap “Continue”. Updates will be on this page too.