Sololearn vs Extreme Concentration Trainer

Start learning to code with Sololearn, the #1 app for learning programming on the go! Created by top educators and tech experts, Sololearn offers interactive lessons and hands-on practice in over 20 programming languages, including Python, JavaScript, SQL, Java, C#, and more. Join over 35 million learners worldwide building skills, advancing careers, and turning ideas into real-world solutions with Sololearn's community-driven, beginner-friendly courses. Ready to start your coding journey? What You Get with Sololearn • 4 Career Tracks & 20+ Full Courses – Dive into thousands of coding lessons and hands-on coding exercises, crafted in a bite-sized, engaging format. Ideal for future developers and coding enthusiasts alike! • Practice from Lesson One – Start coding right away with real-world projects, interactive coding games, and challenges that make learning fun. With engaging content in Python, JavaScript, HTML, CSS, SQL, and more, Sololearn helps you build practical skills from day one. • Code with AI from Lesson One – Begin your coding journey with AI-powered support. As AI becomes integral to development, Sololearn ensures you’re ready with skills all modern developers need. • Real-Time Support When You Need It – Stuck? Get help within minutes! Tap into our supportive community or ask Kodie, our in-app teacher, for instant, AI-powered guidance on any coding challenge. • Personalized Learning Just for You – Sololearn adapts to your pace, preferences, and skill level, tailoring a learning plan that fits you. Progress through coding lessons at your own speed with content customized to match your goals and learning style. • Code Anytime, Anywhere – Practice coding anytime with Sololearn’s mobile code editor. From Python to JavaScript and more, keep learning and coding wherever you are. • Powered by Learning Science – Sololearn strikes the perfect balance of theory and practice with spaced repetition, real-world challenges, and the right level of difficulty, all designed to maximize retention and make coding stick What 35M+ users love about Sololearn • Engaging, hands-on lessons for real-world coding • Learning made super easy • Wide variety of coding courses • Perfect for beginners & pros alike • Learn anywhere with mobile coding What the Media Says About Us - "A profound impact on millions of people's financial futures." – TechCrunch - "Hundreds of different quizzes and activities." – Forbes - "An enjoyable environment for infinite professional growth." – TechCrunch HOW DOES IT WORK? With Sololearn, you can start learning to code for free. However, to unlock access to all features, you’ll need to enable a free Pro trial. If you choose not to cancel at least 24 hours before the end of the trial, you will automatically be charged the price shown on the payment screen for your selected subscription period. Don’t worry—the App Store will remind you when your free trial is nearing its end. The Sololearn Pro subscription renews automatically at the end of each period (weekly, monthly, or yearly, depending on your choice) until you cancel. Canceling your subscription will disable automatic renewal, but you’ll still have access to all your Pro features until the end of the current subscription period. Looking for even more? Our Max subscription includes exclusive Learn AI content with 15 courses designed to boost your AI-driven skills. Master data analytics, data visualization, writing and brainstorming with AI, SEO optimization, and much more with cutting-edge tools to accelerate your growth. Please note: Deleting the app does not cancel your subscription. Terms of Use: https://www.sololearn.com/en/terms-of-use Privacy Policy: https://www.sololearn.com/en/privacy-policy/ Contact Us For any questions or suggestions on how to make your experience better, reach out to us at info@sololearn.com

Extreme Concentration Trainer is a Bourdon-style attention drill. A highlight moves through a field of letters. You mark assigned symbols with 1, 2, and 3 (or 1–4 / 1–5 in Settings), and press Space to skip everything else. Correct marks light up green. Missed targets light up yellow. Wrong marks light up red. Pace is yours — Space sets the tempo. Customize letter size, spacing, background color, and capitals (a–z or A–Z). Scores stay on this device. No account. Works on iPhone, iPad, and Mac.