VeriFlash vs Quarry

Fact-check what you see without leaving your flow. VeriFlash turns screenshots of news, social posts, messages, and other claims into clear, sourced fact-checks. Capture a screenshot, review the claim you want to verify, and get an AI-assisted assessment, explanation, and links to supporting evidence. HOW IT WORKS 1. Capture: Use your latest screenshot, share an image to VeriFlash, or launch with Shortcuts or the Action Button. 2. Extract: Text recognition runs on your device and prioritizes prominent headline text. 3. Refine: Review and edit the claim before sending it for verification. 4. Verify: Read the assessment, open cited sources, and explore explanations, counter-evidence, and context. 5. Share: Preview, copy, or share an evidence receipt with the claim, explanation, and source links. FEATURES - Fast screenshot-to-fact-check workflow built for iPhone - On-device text recognition - Editable claims for more precise checks - Clear assessments with expandable explanations and evidence - Source links, counter-evidence, and context when available - Review and retry claims that need clarification - Shareable evidence receipts - Searchable fact-check history - Notifications for claim review and completed results - Shortcuts, Action Button, and Back Tap support - No account required PRIVACY BY DESIGN Text recognition happens on your device. Your screenshot is not uploaded for verification; only the claim text you choose is sent to the VeriFlash service. Fact-check history is stored locally and by the service using a non-reversible hashed device identifier. You can clear local history and manage permissions from Settings. Evidence receipts do not include your screenshot. Preview a receipt for private details before sharing it. VERIFLASH PRO Free users receive 10 fact-checks each month. VeriFlash Pro unlocks unlimited checks and priority processing. VeriFlash Pro Monthly: $4.99/month VeriFlash Pro Yearly: $39.99/year Prices may vary by country or region and are shown in the app before purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple Account settings. VeriFlash provides informational results and cannot guarantee that every conclusion is complete, current, or correct. An unverifiable result does not mean a claim is false. Review cited sources before relying on a result for an important decision. Privacy Policy: https://www.veriflash.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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.