Learn the skills that actually matter
AI, marketing, technology, data, business, and career skills — taught through interactive challenges, not passive videos. Like Duolingo for professional skills.
No account needed to start · 11 tracks completely free · Pay only when you're ready
Where should I start?
Pick what describes you best — we'll point you to the right tracks.
How it works
From zero to certified in three steps. No prerequisites, no setup, no friction.
Pick your track
Choose from 25 curated paths across AI, marketing, tech, careers, and business. Many are completely free.
Learn by doing
Interactive challenges, real-world scenarios, and visual explanations. No passive videos — you solve problems as you go.
Prove your skills
Pass the certification quiz and earn a cryptographically verifiable, shareable certificate.
Learning that doesn't feel like learning
Every module is designed to keep you engaged — stories, challenges, visuals, and analogies so you never hit a wall of text and zone out.
Scenario-first learning
Every module opens with a real story — never a textbook definition. You'll meet a founder pitching investors, a marketer analyzing a failing campaign, or an engineer debugging production AI. The concept comes alive before the theory arrives.
"Sarah opened a cupcake bakery in Austin. Amazing product. Five-star Yelp reviews. But when people Googled 'best cupcakes in Austin,' her shop was on page 4..."
Interactive challenges every few minutes
Fill-in-the-blank, matching, ranking, scenario-based, and build challenges are woven into every module. You're never passively reading for more than 2-3 minutes before you're doing something.
Match the threat → "You get a text from your bank asking you to confirm a transaction by clicking a link" → Phishing, Social engineering, or Malware?
"No Dumb Questions" sidebars
Inspired by the Head First book series. Every module has Q&A sidebars that ask the "obvious" questions nobody else answers — the ones you're actually thinking but won't raise your hand for.
"Is ChatGPT connected to the internet?" "Can I lose all my money in stocks?" "Do I need a CS degree for AI roles?"
Visual explanations, not walls of text
Animated flow diagrams, hand-drawn concept sketches, interactive sliders, comparison tables, timelines, and heatmaps. Abstract ideas get a visual form so they stick in your memory.
An animated FlowDiagram showing the AI agent loop: Plan → Execute → Observe → Reflect → Adapt, with data flowing between nodes.
Analogies that actually work
We explain cloud computing as "renting a hotel room instead of buying a house." Deep learning layers as "a child learning to see — edges first, then shapes, then objects." Every concept has a concrete analogy.
"Think of cybersecurity like home security: locks on doors = passwords, alarm system = intrusion detection, safe for valuables = encryption."
Verifiable certificates
Pass the quiz, earn a cryptographically-signed certificate with a unique verification URL. Share it on LinkedIn, add it to your resume, prove it to your employer. Anyone can verify it.
Each certificate is HMAC-SHA256 signed — tamper-proof, instantly verifiable at octo.net/verify?id=...
Browse all tracks
25 tracks across 5 categories. 11 are completely free.
Understanding AI
Start here. What AI actually is, how it works, and why it matters — explained so anyone can follow. No code, no math, no jargon.
AI for Professionals
Use AI to do your current job faster and better — prompting, writing, research, data, automation. Practical skills you'll use tomorrow.
Building AI-Powered Products
Learn to build, ship, and scale AI features — from your first API call to production agents. For developers who want to stop watching tutorials and start building.
Leading AI Products
Make the right AI product decisions — what to build, when to ship, and how to measure success. For anyone who owns a product roadmap.
AI Strategy & Leadership
Turn AI from a buzzword into a business advantage. Budget, team structure, risk, and ROI — the decisions only leaders can make.
Marketing Foundations
Start here. What digital marketing actually is, who your customer is, and how every channel fits together — built for anyone starting a marketing career from zero.
Mastering ChatGPT
From your first prompt to advanced techniques — learn to use ChatGPT like a power user. Practical skills you can apply to any job, today.
Technology Explained
How the internet, cloud, databases, and cybersecurity actually work — explained so anyone can follow. The tech literacy every professional needs.
Generative AI Explained
What generative AI and deep learning actually are, how they work under the hood, and why they changed everything — no math required.
Digital Marketing Mastery
SEO, content marketing, social media, and analytics — the complete toolkit for marketing in a digital world. From zero to practitioner.
AI & Your Career
Will AI take your job? How to future-proof your career, land AI roles, and turn AI anxiety into your biggest advantage.
Copywriting & Messaging
Write words that make people act. Headlines, landing pages, emails, ads, and social copy — the skill that runs through every channel in marketing.
Content Marketing
Build an audience that comes to you. Strategy, blogging, video, content calendars, repurposing, and measurement — how to grow through content that earns trust.
SEO Fundamentals
Rank on Google and stay there. Keyword research, on-page optimisation, technical SEO, link building, and analytics — the complete playbook for organic search growth.
Social Media Marketing
Build real audiences on the platforms that matter. Platform strategy, content creation, community building, paid social, and analytics — how to make social media work for your business.
Email Marketing
The channel with the highest ROI in digital marketing. Build a list, write emails people open, automate sequences that sell while you sleep, and measure what actually matters.
Paid Advertising
Turn £1 into £3. Google Search, Meta, display, and YouTube — how to build paid campaigns that reach the right people, generate profitable conversions, and scale without waste.
Marketing Analytics
Stop guessing. Measure what works, kill what doesn't, and make every marketing decision from data. GA4, attribution, A/B testing, dashboards, and the metrics that actually predict growth.
Marketing in Practice
Put everything together. Go-to-market strategy, channel mix, team building, budget planning, and the full-stack marketing playbook for SaaS, e-commerce, and service businesses.
AI Tools Masterclass
Hands-on guides for the AI tools reshaping work — Claude, Copilot, no-code AI, and AI for spreadsheets. Learn each tool by doing, not watching.
Data Skills Essentials
Data analytics, SQL, and visualization — the foundational skills behind every data-driven decision. No prior experience needed.
Career Skills
Product management, UX design, personal branding — the skills that get you hired, promoted, and paid what you are worth.
Money & Investing 101
Inflation, stocks, compound interest, ETFs — the financial literacy you were never taught in school, explained so anyone can follow.
Build a Startup
From idea to launch — business models, pitch decks, validation, and funding. The practical startup toolkit, no MBA required.
Workplace Skills
Leadership, negotiation, time management, and presentations — the soft skills that determine who gets promoted and who gets stuck.
Octo vs. the alternatives
We built what we couldn't find anywhere else.
| Feature | Octo | Brilliant | Coursera | Udemy |
|---|---|---|---|---|
| Interactive challenges | ✓ | — | — | |
| Verifiable certificates | — | ✓ | — | |
| No subscription required | — | — | ✓ | |
| AI + Marketing + Tech + Career | — | ✓ | ✓ | |
| Content updated continuously | ✓ | — | — | |
| Team / B2B plans | ✓ | ✓ | ✓ | |
| Curated learning paths | ✓ | — | — | |
| Free tracks available | — | — | — |
Brilliant: $25/mo subscription · Coursera: $49-79/cert · Udemy: $10-200/course · Octo: 11 tracks free, paid from $19.99
Simple, honest pricing
11 tracks are completely free. Paid tracks are one-time — no subscriptions, no auto-renewals.
per track, one-time
- Full track access
- All interactive challenges
- Certification quiz
- Verifiable certificate
- Lifetime access
all 14 paid tracks, one-time
- All 14 paid tracks + 11 free
- All interactive challenges
- 14 certification quizzes
- 14 verifiable certificates
- Lifetime access
- Save $239.87
starting at 5 seats
- All tracks for every team member
- Admin dashboard & analytics
- Completion tracking & reports
- Verifiable certificates
- Priority support
- EU AI Act compliance ready
EU AI Act compliance deadline: August 2026
Article 4 requires organizations to ensure "sufficient AI literacy" among all staff using AI systems. Non-compliance contributes to fines up to 7% of global revenue. Our certificates provide documented proof of training.
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11 tracks are completely free. No account required. See why interactive learning beats passive videos.