Android · free · no ads in the course
Learn Linux and the command line on your phone.
Short, hands-on lessons where you type real commands and see what they do. No computer, no setup, no prior experience. In Roman English or English — whichever you actually think in.
Free to learn · optional earning · cash out from 25 PKR
What's inside
One course today — Termux Mastery — from opening a terminal for the first time to writing and running your own scripts.
Practice, not reading
Almost every screen is a task. Type the command, predict the output, build it from parts. You are doing the thing, not reading about it.
Roman English or English
Learn in the language you actually think in, and switch any time in Settings. Nothing is locked behind knowing English first.
Built for beginners
If you have never opened a terminal in your life, you are exactly who this is for. Every command is explained before you are asked to type it.
Runs on your phone
A real playground on the device — no server, no account needed to learn, and no computer required at any point.
What it looks like
Real screenshots from the current release, not mock-ups.
Earning JB Points — entirely optional
The whole course is free and nothing in JeebByte costs money. If you want to earn as well, answer a survey or watch a short video on the Earn tab and cash the points out.
- Two survey panels. CPX Research and TheoremReach, merged into one list so you see everything available in one place.
- The odds are shown before you start. Every card carries the panel's own completion rate, so you can avoid the ones that screen most people out — which no survey wall tells you.
- Short videos. About thirty seconds, a couple per hour.
- Games. Install a game from the Games tab and get paid at each step you reach. See every game and what each step pays →
- Cash out from 25 PKR to JazzCash, EasyPaisa, SadaPay, NayaPay, or a Pakistan or UAE bank account. We charge no fee.
How your balance is protected
The app cannot write its own balance. Every point is created on our server, only after the survey partner confirms the completion directly to us — never on the word of the phone. That is why a reward can appear minutes after you close a survey.
Points are minted server-side
The app asks; the server decides. A modified app cannot give itself points, because it has no way to write to the ledger at all.
Every reward is signed
Partners sign each completion, and the signature is checked before a single point is credited. Unsigned callbacks are refused.
One earning account per phone
Keeps rewards going to real people rather than to whoever can create accounts fastest, which is what keeps payouts possible at all.