TalkBits vs Quarry

TalkBits helps you practice real conversations — quickly, naturally, and without pressure. Whether in everyday life, while traveling, or at work, TalkBits helps you speak a language the way it’s actually used. 1. Real Conversations Instead of Lessons TalkBits focuses on natural conversation: Everyday language instead of textbook phrases Short, realistic responses Common expressions and casual speech You learn how people really speak. 2. Speak Press and hold to speak naturally Instant voice responses Hear correct pronunciation in real context 3. Many Languages Practice conversations in: English (US, UK, Australia) German French Spanish Italian Dutch Portuguese Arabic And more European languages 4. Learn Quickly — Speak for Real TalkBits is made for everyday use: 30 seconds or 5 minutes Perfect for on the go No long study sessions Every conversation moves you forward. 5. Intelligent AI Conversation Partner Adapts to your language level Responds naturally and friendly Gently corrects mistakes within the conversation Feels like a real interaction 6. Private & Pressure-Free No public profiles No ratings No awkward situations Practice entirely on your own terms.

Data interview practice that runs entirely on your device. Write real SQL and Python (pandas), get graded instantly, and see exactly why. NEW IN 1.1 • Designed for iPhone Duo: question and editor side by side when open, a focused layout when closed, and it adapts as you fold. • A new native design for iPhone and iPad, in light and dark mode. • 60 new problems: a staff-level data engineering set (gaps and islands, sessionisation, slowly changing dimensions, funnels, retention) and company-style SQL sets. • Clearer results: instant correct / not quite feedback, expected vs. actual tables, and the query plan for your SQL. WHAT'S INSIDE • 168 problems across three tracks: 61 SQL, 22 pandas and 85 Python (algorithms and data structures). • Real execution, real grading. Your output is checked against the expected result, with no self-marking. • Company-style practice. Filter problems written in the style of the company you're interviewing at. • Hints and full solutions when you're stuck. • Difficulty levels from Easy to Hard, grouped by topic. • A free-form Playground for scratch SQL and Python. PRIVATE BY DESIGN No accounts. No analytics. No ads. No tracking. Quarry collects nothing and works fully offline. Built by a working data engineer, for analysts, data engineers, data scientists and software engineers who want a quiet, fast place to actually practice.