Text Detection
Paste, scan, or import writing and review a clear AI probability, human probability, and mixed-content status.
Zero.GPT app for iOS and AndroidStealth AI Detector
Detect AI. Understand the signal. Write with confidence.
Use one AI detector app for iPhone and Android to check text, photos, and voice recordings, then compare clear AI and human probability signals.
Free to download Subscription required for analysis
One focused toolkit
See more than a yes or no.
Stealth AI Detector combines multi-format analysis with practical writing tools, giving you a clearer result and a useful next step.
Image Detection
Upload JPG, PNG, or WebP images and inspect whether the visual contains signals associated with AI generation.
Audio Detection
Analyze MP3, WAV, and M4A recordings for patterns associated with synthetic or AI-generated audio.
Humanize Text
Rewrite AI-heavy phrasing into more natural language while preserving the source meaning for your final review.
Essay Generator
Choose a topic and target length from 200 to 2,000 words, then generate a structured draft you can edit.
Private History
Return to previous detection, humanization, and generation results from your on-device history view.
From input to insight
A result you can actually read.
Submit your content, let the detector analyze its signals, then review the score and supporting status before deciding what to do next.
- Choose the format.Paste text or select an image or audio recording.
- Run the analysis.The app processes the sample and calculates probability signals.
- Review the result.Compare AI and human probability instead of relying on a single label.
Beyond detection
Keep the meaning. Improve the voice.
Humanize Text rewrites AI-heavy phrasing into more natural language. You stay in control by reviewing, copying, and editing the result before use.
Read the humanization guideInside the app
Four screens. One workflow.
Detection, generation, humanization, and results stay close at hand.
Before and after a mobile scan
Prepare your sample. Keep your evidence.
Use small, private tools for the work around an AI check: preparing enough text, documenting authorship, counting, and proofreading.
Explore all 13 student tools01 / Mobile prep
→Text Sample Checker
Check the app minimum and sample context before scanning.
02 / Student evidence
→Authorship Checklist
Organize drafts, notes, sources, and version history after a flag.
03 / Proofreading
→Non-AI Grammar Checker
No generative AI or text upload
04 / Length
→Word Counter
Live word and character counts
05 / Proofreading
→Spelling Checker
English dictionary checking
06 / Proofreading
→Punctuation Checker
Spacing around punctuation
Detection guides
Know what to check next.
Why Is My Essay Flagged as AI?
Understand why human writing can trigger an AI detector and what evidence matters more than trying to chase a lower score.
Read guide →How to Respond to a False AI Accusation
A calm, evidence-first process for students who are asked to explain authorship or challenge an AI detection result.
Read guide →AI Detector False Positives: What Scores Can and Cannot Prove
A research-based explanation of false positives, detector limits, and why a score should not be used as sole evidence.
Read guide →How to Check Text with an AI Detector App on Your Phone
Prepare a useful text sample, scan it on iPhone or Android, interpret probability scores, and keep the result in context.
Read guide →How to Check If an Image Is AI-Generated on Your Phone
Check a suspicious photo from your camera roll by combining its source, provenance clues, visual review, and an AI image detector app.
Read guide →How to Detect an AI Voice on iPhone or Android
Preserve a suspicious voice note, verify the speaker separately, and analyze MP3, WAV, or M4A recordings on your phone.
Read guide →How to Humanize AI Text Without Losing Meaning
Improve rhythm, specificity, and voice while keeping the original point intact and reviewing every change.
Read guide →Questions, answered
Before you scan.
AI detection is useful when its limits are clear. Start with the basics.
What can Stealth AI Detector analyze?
The app supports AI analysis for text, images, and audio. It also includes text humanization, essay generation, and a history view for previous results.
What do the AI and human scores mean?
They are probability indicators based on patterns found in the submitted content. They should be reviewed alongside context and should not be treated as definitive proof of authorship.
Which file formats are supported?
Image analysis supports JPG, PNG, and WebP. Audio analysis supports MP3, WAV, and M4A. Text can be pasted, captured with the camera, or imported from a PDF.
How much text should I submit?
The app requires at least 200 characters for text detection and humanization. Longer, coherent samples generally provide more useful signals than short fragments.
Is the app free?
Stealth AI Detector is free to download. Analysis and writing features require an active subscription; current plans and regional pricing are shown in the App Store and Google Play.
Does an AI score prove content was generated by AI?
No. AI detection can produce false positives and false negatives. Use the result as one signal, review the original source, and avoid making high-stakes decisions from a score alone.
Available now
Put AI detection in your pocket.
Download Stealth AI Detector for iPhone or Android. Free to download; analysis features require an active subscription.
