SpellCopy
AI Writer° is an app available on the iPhone, iPad, and iPod touch that allows users to create written content with the help of artificial ...
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What is SpellCopy?
Undetectable AI, also known as Spellcopy in the App Store, is a powerful mobile app that serves as a bypassGPT paraphrase tool. It primarily functions as an AI humanizer, transforming AI-generated text from models like ChatGPT, GPT-5, Gemini, Claude, and Llama into content that evades detection by AI checkers. The app also includes an integrated AI detector to scan text for AI patterns, allowing users to verify authenticity before and after processing. Designed for iOS 16.0 and later on iPhone and iPad, it caters to content creators needing undetectable output.
Key features include advanced linguistic and semantic analysis for 99%+ accuracy in detection, multi-language support across 50+ languages, and one-click results from multiple major AI checkers. Users can paste text up to 10,000 words, humanize it to mimic human writing styles, and benefit from a user-friendly interface with no signup required for basic use. Additional tools like sentence rewriter and word counter enhance productivity.
This tool is ideal for bloggers, SEO professionals, digital marketers, students, academics, writers, journalists, freelancers, teachers, educators, and researchers. It helps maintain authenticity in essays, blog posts, articles, emails, and research papers, ensuring compliance with academic integrity and SEO standards while avoiding penalties from AI detection.
SpellCopy pricing
Pricing model: Freemium
Free tier offers basic AI detection and limited checks without signup. Paid in-app purchases include Weekly $7.99, Monthly $9.99, Yearly $59.99 or $57.00, and Special Discount Yearly $39.99. Pro unlocks unlimited humanizing, advanced features, and priority support.
SpellCopy pros
- Bypasses top AI detectors like Originality.ai
- 99%+ detection accuracy proven by tests
- Free AI detector with no signup needed
- Supports 50+ languages for global use
- Humanizes paraphrased AI from QuillBot
- Detects GPT-5, Gemini, Claude content
- Chrome extension for on-the-go use
- Zero data storage for privacy
- Multi-checker results in one click
- iOS app for iPhone and iPad
- Handles up to 10,000 words per check
- No false positives on human text
- Trusted by 23M+ users worldwide
- Quick processing for fast workflow
- Business solutions for teams
- Sentence rewriter included
- Word counter utility built-in
SpellCopy cons
- Requires in-app purchases for full humanizer
- Weekly plan at $7.99 is pricey short-term
- Limited to iOS 16.0 or later devices
- App crashes reported by some users
- Support unresponsive to troubleshooting
- Text formatting errors during generation
- Pro features locked behind subscription
- No Android version available
- Age rating 18+ restricts younger users
Frequently asked questions about SpellCopy
How accurate is the AI detector?
The detector achieves 99%+ accuracy, outperforming competitors in independent tests by correctly identifying 100% of AI-generated and paraphrased content with zero false positives on human-written text.
What AI models does it detect?
It detects content from ChatGPT, GPT-5, Claude, Gemini, Llama, DeepSeek, and paraphrased text from tools like QuillBot, Grammarly, ensuring comprehensive coverage of major generators.
Is the free AI detector unlimited?
The free tier provides instant AI detection for up to 10,000 words without signup, showing results from multiple major checkers, though advanced humanizing requires pro subscription.
Does it support multiple languages?
Yes, it supports detection and humanization in 50+ languages, with highest accuracy in English, making it suitable for global users across diverse linguistic contexts.
Is user data stored or shared?
No, text is never stored or used for training models. Privacy practices collect only purchases, usage data, and diagnostics not linked to identity.
Who is the app designed for?
It's for bloggers, SEO experts, students, academics, writers, journalists, marketers, teachers, and researchers needing authentic, undetectable content.
What are the subscription options?
Options include Weekly $7.99, Monthly $9.99, Yearly $59.99/$57.00, and Special Discount $39.99, unlocking unlimited use and pro features.
Can it detect rewritten AI content?
Yes, specifically trained to identify obfuscated or paraphrased AI from rewriters, ensuring even modified content is flagged accurately.
What devices is the app compatible with?
Requires iOS 16.0 or later on iPhone and iPadOS 16.0 or later on iPad, categorized under Business with 26.3 MB size.
How to contact support for issues?
Contact via the app or website for help with errors like generation failures or formatting, though some users report delays in responses.