Detailed explanations
Online courses for adults
IT, marketing, analytics, AI, finance, Excel and foreign languages. Detailed explanations, a “Deeper” section in every lesson and 5–15 minute sessions whenever it suits you.

- Detailed explanations: reasons, nuances and real-life examples.
- A “Deeper” section in every lesson for those who want to understand thoroughly.
- A certificate with a number and QR code you can attach to your CV.
Courses for this group
PythonLearn to think in code: variables, conditions, loops, functions and files.
Web developmentFrom your first HTML line to an interactive page with JavaScript and API calls.
Git & GitHubVersions, branches, merges and pull requests: work on code with a team and stop fearing you might break something.
CybersecurityProtect your accounts, spot scammers and work safely online.
AI & prompt engineeringUse AI as an assistant: precise prompts, checking answers, automation.
Data analytics & SQLTurn numbers into decisions: metrics, SQL queries, charts and A/B tests.
Spreadsheets: Excel & Google SheetsFormulas, functions, filters and pivot tables: calculate budgets, reports and data quickly and without mistakes.
UX/UI designDesign clear interfaces: hierarchy, typography, grids, states and accessibility.
Digital marketingUnderstand your audience, build a funnel and turn ideas into a growth strategy.
SMM & promotionRun social media systematically: content plans, Reels, Telegram channels, engagement and analytics.
Targeted advertisingFind your audience, test creatives and scale what works.
Ads & performanceMeasure ad performance: metrics, UTM, ROAS, media plans and unit economics.
Logic & puzzlesPatterns, knights and knaves, Euler diagrams and probability: train your thinking with puzzles.
Financial literacyBudgeting, saving, interest, loans and fraud protection — money without the stress.
SAT MathAlgebra, functions, data and geometry in the Digital SAT format, with step-by-step explanations.
SAT Reading & WritingGrammar, punctuation, reading and text logic for the Digital SAT, with real exam-style examples.
Chinese (HSK 1)Pinyin, tones, first characters and spoken dialogues — the easiest level of Chinese.
Uzbek (A1)Uzbek in Latin script from scratch: sounds, greetings, numbers, family and simple grammar — with audio.
Russian (A1)Russian from scratch: Cyrillic, greetings, numbers, family and simple grammar — with audio.If you are choosing training for employees
- Corporate licences: employee logins, progress and reports.
- Every course in the catalogue, premium ones included, is part of the licence.
- Employee certificates can be verified by number.
- Invoice payment for organisations.
Frequently asked questions
How much should I study each day?
10–15 minutes is enough: one to three lessons. Streaks and reminders help you not to skip days.
Do I need experience?
No. All courses start from scratch, and the unit test lets you skip what you already know.
Are there ads?
The free plan has short ads. PRO turns them off and opens every course.
Pick a course by age
Kids · ages 6–11Simple words, short explanations and pictures. No ads, with heroes and rewards.Learn more →
Teens · ages 12–17The point and examples without padding, mini-projects, leagues and certificates for a portfolio.Learn more →
Adults · 18+Detailed explanations, reasons and nuances, and a “Deeper” section in every lesson.Learn more →