SQL Practice vs DevFob

Learn SQL in 15-minute daily sessions — on your phone, anywhere. SQL Practice turns idle moments into practical data skills. With interactive exercises, realistic datasets, and instant feedback, you’ll build SQL confidence from beginner fundamentals to interview-ready skills. Who it’s for: - Career changers entering tech - Professionals adding SQL to their toolkit - Students preparing for technical interviews - Anyone curious about data and databases Why it’s different: - Learn by doing: write and run real SQL queries - SQL Patterns (Pro): understand reusable approaches instead of memorizing answers - Database Bits (Pro): build intuition with short, visual lessons - Smarter feedback (Pro): see why your result differs from the expected output - Progressive curriculum: start with the fundamentals and advance at your own pace - Mobile-first design: practice whenever you have a few spare minutes When you get stuck: With Pro, SQL Practice helps you move forward without immediately giving away the answer. Use progressive hints, compare your results with the expected output, and explore SQL X-Ray explanations that break queries into understandable steps. What you’ll learn: - SELECT, WHERE, ORDER BY, and filtering - JOINs and relationships between tables - COUNT, SUM, AVG, GROUP BY, and HAVING - Subqueries and advanced query techniques - Reusable SQL patterns (Pro) - Core database concepts, indexes, and data design (Pro) Practice your way: - Guided SQL lessons - Easy, medium, and hard exercises - Quick drills - Short visual database lessons (Pro) - Daily practice challenges - Streaks, XP, achievements, and progress tracking - Hardcore mode: turn off the advanced SQL keyboard and solve the toughest challenges without assistance—the highest level of SQL practice. Free and Pro: Core SQL lessons, exercises, drills, streaks, and basic progress tracking are free. An optional auto-renewing Pro subscription unlocks SQL Patterns, Database Bits, progressive hints, detailed result comparisons, and SQL X-Ray step-by-step explanations. Available plans, billing periods, trial eligibility, and localized prices are shown before purchase. No purchase is required to use the core learning and practice features. Start your data journey today — no prior coding experience required, just 15 minutes of curiosity. Privacy Policy: https://martongreber.github.io/mvp/privacy.html Terms of Use: https://martongreber.github.io/mvp/terms.html

DevFob puts your Mac's Claude Code sessions on your iPhone — and your Apple Watch. Claude Code runs on your Mac. DevFob lets you watch every session and answer it from anywhere, so a long run never stalls waiting on a prompt you didn't see. • See every session live — running, idle, or needs-you-now. • Answer permission prompts (Allow / Deny) and multiple-choice questions from your iPhone or Apple Watch. • Send a quick instruction or reply without walking back to the Mac. • Resume an interrupted session. • Switch your Mac's operating mode. • Glance at your Claude usage (5-hour and weekly windows). Built for trust: • End-to-end encrypted. Pair your iPhone to your Mac with a one-time code; every command is sealed, so the relay only ever sees ciphertext. • No account, no tracking. It talks to your own Mac, not to us. • The Apple Watch app mirrors your iPhone, so the watch never holds your Mac's keys. DevFob requires the DevFob host running on your Mac (devfob.com).