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TRY IT FREESTART FREE
FREE FOR EVERYONE For students, gamers & freelancers

Level up your real life.
Tasks, habits and focus – with XP, levels and rewards.

CORTEX turns your to-do list, habits, focus timer and day plan into a game you actually want to play: finish tasks, earn XP, level up your character and spend credits on rewards you choose. Freelancers get time tracking and reports on top.

Works on the web & mobile
CORTEX Today screen: a time-blocked day plan, a running focus session, habits and level progress

You do it all yourself.
Five tools, no clear picture.

Tasks in one app, invoices in Word, time untracked, finances only in your head. The result? You lose time, focus and energy — and by evening you have no idea where the day went.

App-switching all day

Tasks, calendar, invoicing, notes — each somewhere else. Half the work is just searching.

Invoicing by hand

Invoices made manually, numbers looked up, payment references tracked. A pointless time sink.

No clear picture of your time or money

You don't know what actually makes you money, where your hours went, or what to bill.
Illustration: an overloaded brain juggling too many tasks
GOALS & VISION

Direction first.
Then daily steps.

Break big goals into manageable steps and connect them to daily tasks. Keep your "why" in sight on the Vision Board and think projects through in Mind Maps.

  • Goals with progress — see how close you are, not just a wishlist.
  • Vision Board — your dreams and direction always in view.
  • Mind Maps — plan a project before you dive in.
app.getcortex.cz/goals
CORTEX goals with categories, deadlines and progress from real tasks
PLANNING & FOCUS

Wake up knowing
what to work on.

Pick a few priorities for the day, start the timer and focus on one thing. CORTEX builds your day plan and keeps track of deadlines, so nothing slips.

  • One-click day plan — the system schedules your tasks for you.
  • Focus timer — track time right on the task, no side notes.
  • List and calendar — daily and weekly views with hourly slots, drag & drop, and your Google calendar as busy blocks.
app.getcortex.cz/planner
CORTEX task planner: tasks grouped by day with priority, time estimate and goal
INVOICING & CLIENTS

An invoice done
in 30 seconds.

Create an invoice in the Czech format (for businesses not registered for VAT) in English, Czech, Slovak, German or Polish and send the PDF to your client from your own email. Numbers, payment references and your client database are handled for you — and you instantly see who paid and who owes.

  • Invoices + PDF — ready to send in moments.
  • Client database — contacts, IDs and history in one place.
  • Payment matching — automatic with Fio, a statement upload for other banks; paid / unpaid at a glance.
app.getcortex.cz/invoices
CORTEX invoicing: issued, paid and outstanding invoices at a glance
TIME & RESULTS

Measure what
work really takes.

Start a timer on recurring work and Cortex tells you where your hours went. Finally you have data for invoicing and proof of what pays off and what doesn't.

  • One-click timer — start work on a client project in one click.
  • Time reports — by week, project or client.
  • Invoice from hours — tracked time × the project rate, a draft invoice in one click.
app.getcortex.cz/stats
CORTEX reports: tracked time, finished tasks and time per category
MOTIVATION THAT LASTS

Reward now,
not a year from now.

Your brain loves small wins. Every finished task earns XP and credits, you level up and unlock rewards. Exactly the feedback that keeps you going even on the days you don't feel like it.

Ranks to reach:

  • Novice Novice Lvl 1+
  • Scout Scout Lvl 3+
  • Apprentice Apprentice Lvl 5+
  • Warden Warden Lvl 8+
  • Adept Adept Lvl 10+
  • Strategist Strategist Lvl 15+
  • Veteran Veteran Lvl 20+
  • Master Master Lvl 25+
  • Grandmaster Grandmaster Lvl 30+
  • Legend Legend Lvl 40+
  • Reality Architect Reality Architect Lvl 50+
  • XP & levels — watch yourself grow from Rookie to Grandmaster.
  • Rewards — trade earned credits for real rewards.
  • Character stats — build Strength, Intelligence and Wisdom.
Achievement system

Achievements

First Step

First Step

Complete your first task.

+25 XP
Deep Work

Deep Work

Log a focus session of at least 60 minutes.

+300 XP
Merchant

Merchant

Issue your first invoice.

+50 XP
… and 50+ more badges
COMPETE & TEAMS

Solo works.
Together works better.

Productivity doesn't have to be lonely. Share real progress on the community wall, find people with similar goals in People, join a shared co-working sprint or an alliance and compete in weekly challenges. The community is opt-in.

Team chat Weekly challenges Leaderboard
  • Weekly challenges — whoever does more wins. A fresh round every week.
  • Shared goals — pull in the same direction.
  • Leaderboards — healthy motivation not to slack off.
app.getcortex.cz/leaderboard
CORTEX community: alliances, team challenges and a friends leaderboard
PERSONAL CONTRACT

A promise to yourself
that keeps you on track.

Committing to yourself builds trust and certainty. The personal contract helps you name your why, locks in a 30-day commitment and turns it into concrete recurring steps in your planner.

  • Mental anchor — reminds you who you're becoming when motivation dips.
  • Consistency over mood — the system turns the promise into routine.
  • More confidence — every win proves you can rely on yourself.
CORTEX personal commitment contract with a signature
CALM

A minute of calm,
whenever you need it.

The day speeds up and your head is running at full throttle. Calm brings you back into your body in a minute: a shape on the screen grows as you breathe in and shrinks as you breathe out, and you just breathe along. No counting, no pressure, free.

  • Breathing exercises — Calm down, Focus, Before sleep and Energy for 1, 3, 5 or 10 minutes, with a reduced-motion countdown mode too.
  • Meditation timer — a soft bell, short guided scripts and rain or noise sounds generated right in your browser.
  • SOS calm — 60 seconds of 5-4-3-2-1 grounding, the sigh breath and helplines one tap away.
  • Gentle, on your terms — a one-minute breath before and after focus, a reminder at most once a day and only if you want it, calm minutes and a small XP reward once a day.

Relaxation exercises for everyday stress, not a treatment.

app.getcortex.cz/klid
CORTEX Calm: a breathing exercise with a shape that grows as you breathe in, technique and length picker
BRAIN ACADEMY

Understand your brain.
In 3 minutes a day.

Why do you put things off even when you want to do them? What does dopamine really do? Brain Academy explains it in short lessons, in plain words and with sources. Every lesson ends with one small experiment you try right away on your own tasks – so you see what works for you.

  • 7 lessons in week 1 — procrastination, dopamine, action before motivation, unfinished tasks, attention, if-then plans and habits.
  • An experiment, not just theory — CORTEX opens the right screen, already filled in; you try it and tell it how it went with one tap.
  • Made to stick — questions come back after 1, 3, 7 and 21 days, the streak counts weeks, not days, and experiments earn XP and badges.
app.getcortex.cz/academy
CORTEX Brain Academy: the lessons of week 1 with length, experiment and progress
TEMPLATES

A ready-made plan
in one tap.

No need to start from a blank page. Pick a template – a half marathon in 12 weeks, exam season, moving house, a family budget or a morning routine – fill in a few details, and CORTEX sets up the goals, tasks, habits and calendar blocks for you. You see up front what it creates, and you can remove it all again in one step.

  • 30+ templates in 8 categories — students, freelancers, teams, health, habits, money, personal growth and home and family.
  • At your pace — choose Easy, Normal or All in and preview what will be created before you apply it.
  • Your own templates — save a goal, routine or project as a template and share it with a friend by link.
app.getcortex.cz/templates
CORTEX templates: a gallery of ready-made plans by category with length and time per day

IT'S IN YOUR POCKET

CORTEX isn't just a website. It's a Progressive Web App (PWA).
Install it on your phone and keep tasks, time and invoices with you anywhere. Works on iOS and Android.

iOS Android
CORTEX on a phone: good and bad habits with streaks
CORTEX on a phone: the Today overview
CORTEX on a phone: the day plan in time blocks
ALL IN ONE

WHAT DO YOU GET?

One system. Every tool a freelancer needs.

Journal & energy

Track energy, sleep, mood and flow. Find the patterns behind your best work.

Vision Board

Visualize your dreams and long-term goals. Keep the big picture in view.

Mind Maps

Mind maps for projects. Capture ideas before they vanish.

Rewards

Trade earned credits for real rewards. Motivate yourself positively.

Planner & calendar

An hour grid for the day and week, one-click day plans, and your Google or Outlook calendar as busy blocks.

Personal finance

Income, expenses and cashflow in one clear planner. No more guessing.

Leaderboards

Who's most productive this week? Healthy competition with your friends and alliance.

Habits

Build good habits and break bad ones. Track streaks and lock in discipline.

Dark and light mode

Dark mode by default is easy on the eyes; the sun and moon icon switches to light. Or let CORTEX follow the time of day.

Brain Academy

Short lessons on how your brain works, each with one experiment on your own tasks.

Calm

Breathing exercises, a meditation timer, soothing sounds and SOS calm one tap away.

Templates

Ready-made plans for sport, school, money and home. Goals, tasks and habits in one tap.

STOP JUST READING. START.

CREATE FREE ACCOUNT
EVERYTHING FREE
The whole system. No ads, no credit card, no paid tier.

IS CORTEX FOR YOU?

Freelancer

You find work, do it, invoice and keep the books. You need an overview, not five apps.

Small team

You pull together. Shared goals, challenges and a clear view of who does what.

Solopreneur

You build a business alone. You're CEO, marketer and accountant. You need a system, not chaos.

A FAIR MODEL

FREE FOR EVERYONE.

NO PAID TIER, NO ADS

CORTEX is free for everyone, with every feature. We don't plan a paid tier or ads. Servers and development are funded by voluntary supporters – if CORTEX helps you, you can chip in a small amount.

All features free No credit card

INVEST IN YOURSELF

FREE

Everything is free. All it takes is your discipline.

  • One plan, every feature.
  • No ads, no credit card.
  • No limits on tasks, goals or habits.
START FOR FREE

OPTIONAL SUPPORT

from 1 € / month
or from 12 € / year

Support is purely voluntary. You help us keep servers running and further development.

SUPPORT PROJECT

Support is voluntary and you can cancel it anytime.

ONE APP FOR YOUR WHOLE DAY

What you need What CORTEX gives you
Tasks and day planningTasks in one sentence, a one-click day plan and a calendar
Work time trackingFocus timer and time tracking, reports and CSV/PDF export
Invoicing + PDFInvoices for Czech businesses not registered for VAT, with a QR payment
Finance & client overviewA monthly budget and a client list
Motivation, habits & competitionHabits, XP, levels and rewards, alliances
PriceFREE, every feature
KNOWLEDGE BASE

Free tools, guides and templates

Pomodoro timer, printable planners, focus and habit guides – free, no sign-up.

FREQUENTLY ASKED QUESTIONS

How much does it cost?
Nothing. Every feature is free for everyone – no ads, no credit card, no paid tier. If you like CORTEX you can support development voluntarily, but it unlocks nothing.
Who is Cortex best for?
For freelancers and small teams who want tasks, time, invoicing and finances in one place — and to stay motivated while at it. If you're juggling five apps right now, Cortex is for you.
Do I have to pay or enter a card?
No. Sign-up needs no card and every feature is free. We don't plan a paid tier; if anything ever changed, we'd tell you in advance and never charge you without your consent. Your data stays yours.
How is my data secured?
Data is transferred encrypted (SSL/TLS) and passwords are stored securely (hashed with Bcrypt). Your personal data is private; you can choose to share content in projects, goals or the community. We don't sell or share it with third parties for marketing (aside from anonymized traffic analytics).
CONTACT Email: info@getcortex.cz
© 2026 CORTEX OS. All rights reserved.

LESS CHAOS. MORE DONE.

Create an account and keep your whole day in one place: tasks, habits, focus and goals.

CREATE FREE ACCOUNT

Sign-up takes 30 seconds. No credit card. Runs in your browser and installs on your phone.

BUILT FOR YOUR WORK.

Install on iOS

iOS does not support automatic install. You have to do it manually:

  1. 1. Tap the Share button in your browser.
  2. 2. Scroll down to the action menu.
  3. 3. Choose Add to Home Screen.