AI Detector vs Harold.

Understand the true origin of any writing in seconds. AI Detector provides a fast, accurate, and easy-to-use way to analyze text and estimate whether it was written by a human or generated by AI models like ChatGPT. Whether you're reviewing a student essay, checking a document draft, or verifying online content, AI Detector delivers clear, plain-language results you can trust. EASY TO USE: SCAN, PHOTO, OR PASTE Adding text is fast and effortless: • Camera Scanner: Point your camera at a paper document—automatic edge detection captures and scans the page instantly. • Import Photos & PDFs: Extract text directly from images, screenshots, or PDF files using advanced OCR technology. • One-Tap Clipboard: Paste writing straight into the app with a single tap. ACCURATE & DETAILED ANALYSIS Get clear insights without complex technical jargon: • Dual Probability Scores: See side-by-side percentage breakdowns for AI vs. Human writing patterns. • Plain-Language Explanations: Understand whether a result shows a strong signal, a likely match, or mixed/edited patterns. • Reliability Warnings: Get notified if short inputs or unusual formatting might impact accuracy. BUILT FOR EVERY WORKFLOW • Students & Teachers: Scan physical assignment pages, essays, and research papers right on your desk. • Writers & Editors: Verify draft originality and check client submissions. • Professionals: Quickly review reports, articles, emails, and PDF documents. FREE FEATURES • 5 free scans every day • Analyze up to 1,000 characters per scan • Import up to 5 images per document batch • Optional rewarded ad for extra scans PRO FEATURES • 20 scans every day • Expanded analysis up to 20,000 characters per scan • Batch import up to 20 images at once • 100% ad-free experience • Custom app icons and tint options YOUR PRIVACY COMES FIRST Your files and document scans are processed securely to generate your results. Important Disclaimer: AI detection relies on probabilistic pattern recognition and should be used as an supportive indicator, not definitive proof of authorship. Always evaluate results alongside human judgment, context, and revision history. Internet access required for text analysis. Purchases are managed safely by Apple and can be restored anytime across your devices.

Harold is for writers who want real feedback before they publish. Write a draft, share it with a friend, and let them leave inline comments to the exact words they're responding to. HOW IT WORKS Write your draft in Harold's distraction-free editor. When it's ready, share it with friends directly from the app. They'll see your draft on their phone, highlight any passage, and leave a comment tied to that exact moment in the text. Harold is for essays, short stories, cover letters, speeches, newsletters, or anything else you've written that needs a second pair of eyes before it goes out into the world.