Y Combinator vs Coursium

The Y Combinator App is your home for all things YC. It organizes all of YC's YouTube videos, podcasts, and essays. It's also a mobile client for Hacker News, the best startup news source for programmers and technical founders. For founders who have been funded by YC, it has additional features. For everyone: - Organizes all of YC's YouTube videos - the world's best content on startups - All of the content from Startup School - Listen to YC podcasts on the go - Read Hacker News - the best news source for programmers and technical founders For YC founders: - Access the Bookface feed - Access Bookface messages - Read the YC founder-only knowledge base

Get ahead in AI instead of being replaced by it. Coursium is the difference between dabbling with AI and using it on purpose. Short lessons on the tools that matter, prompts you practise on a real AI model inside the lesson, a library you keep coming back to, and a certificate at the end that anyone can verify WHAT YOU WILL LEARN • Get a useful first draft out of ChatGPT, Claude, DeepSeek or Grok, sharpen it with follow-ups, work with your own documents, and catch the model when it is confidently wrong • Go past the basics: standing instructions, research you can defend, and deliverables someone else can pick up and finish • Direct coding agents like Claude Code and Codex. Read the plan before the diff, keep every version recoverable, and know when to take the work back • Put AI to work in Excel, slides and design. Clean a messy sheet without silently changing it, build a deck that argues something, brief an image generator like a director PRACTISE, DO NOT JUST READ Every course has lessons where you write the prompt yourself, send it to a real AI model, and get coached on what to fix. A short check after each lesson tells you whether it stuck, instead of letting you scroll to the end and call that learning. A LIBRARY YOU WILL ACTUALLY USE Playbooks for real tasks, each one a prompt you fill in with your own goal and material and copy straight into your AI app. Concept cards that take one idea at a time, show it working, then ask you a question about it. Search the whole thing, save what you use, and come back when the task turns up again. A CERTIFICATE THAT MEANS SOMETHING Finish every lesson in a course and Coursium issues a certificate in your name, with a unique reference code and a public page at coursium.ai. Put it on LinkedIn or send the link to a hiring manager and they can check it in one tap. It is issued only once every lesson is confirmed complete, so it is worth something to the person reading it. BUILT TO FIT AROUND YOUR DAY • Lessons of five to nine minutes, so a commute or a gap between classes is enough • Streaks and nine badges you can share, so the progress is visible on the days motivation is not • Lessons work offline. Progress and certificates follow your account • Six languages, translated properly: English, German, French, Spanish, Japanese and Korean. Every lesson, not just the buttons WHO IT IS FOR • Students who want AI skills on the CV before the first job, not after it • Managers and individual contributors who use AI a little and want to use it well • Anyone whose role is changing and who wants proof they kept up • Freelancers and founders doing more with a smaller team • Complete beginners. The first lesson assumes nothing at all Coursium is free to download. Access to all features of the app requires an active subscription (in-app purchase). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed in your Apple ID settings. Disclaimer: Content in this application is provided for educational purposes only. Coursium certificates are issued by Coursium and are not accredited academic qualifications. Coursium is an independent product and is not affiliated with, sponsored by or endorsed by OpenAI, Anthropic, Google, xAI or DeepSeek. Completing a course does not guarantee any employment or career outcome. Privacy Policy: https://www.coursium.ai/privacy Terms of Use: https://www.coursium.ai/terms Support: hello@coursium.ai