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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Double Check AI
✓ verifiedFree trial
Browser AI homework helper that answers and explains questions on Canvas, McGraw Hill, and Pearson, including graphs via screenshots.
2.4K visits/mo
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Undetectable AI
✓ verifiedFree trial
AI writing detector and humanizer that rewrites AI-generated text to pass detection tools for students, writers, and businesses.
4.0M visits/mo27K saves
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StealthWriter
✓ verifiedFreemium
Rewrites AI-generated text into natural human-sounding prose with a built-in before/after AI detector, for students and content writers.
3.6M visits/mo23K saves
Pricing
No public pricing
Free trial available
No public pricing
Free trial available
Free: $0/mo (10 humanizations/day, 1,000 words/input)
Starter: $20/mo (50 humanizations/day, 5,000 words/input)
Plus: $50/mo (150 humanizations/day, 5,000 words/input)
Pro: $100/mo (350 humanizations/day, 5,000 words/input)
Scale: $400/mo (2,000 humanizations/day, 5,000 words/input)
Core features
- ✦One-click answers on learning platforms
- ✦Screenshot solving for images and graphs
- ✦Step-by-step answer explanations
- ✦Works across many homework sites
- ✦Private (nothing saved)
- ✦AI text detector with sentence-level flagging
- ✦AI humanizer/rewriter that scores as human on detectors
- ✦AI-generated image detector
- ✦Fake PDF and AI audio detectors
- ✦Chrome extension for in-browser use
- ✦Sentence rewriter and word counter utilities
- ✦Adjustable rewrite intensity (light/medium/aggressive)
- ✦Integrated AI detector with before/after scoring
- ✦Sentence-by-sentence Deep Scan analysis
- ✦Multiple alternative rewrites per flagged sentence
- ✦Fast processing (seconds per document)
- ✦No storage of submitted text after processing
Use cases
- →Check homework before submitting
- →Solve quiz and assignment questions
- →Work through graph problems
- →Study with detailed explanations
- →Students checking assignments before submission
- →Content writers keeping AI-assisted drafts flag-free
- →Professionals polishing client emails and reports
- →Businesses scaling content output without losing consistency
- →Students checking and humanizing AI-assisted assignments
- →Bloggers and marketers polishing AI-drafted content
- →Researchers and professionals needing natural-sounding AI-assisted writing
- →Verifying content passes detectors before publishing
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