Comparison

Undetectable AI vs AI Humanizer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Undetectable AI

Transform AI-generated text into natural, human-like writing that bypasses AI detectors. This tool helps ensure your content remains authentic and undetectable by major detection systems. It also includes a built-in AI scanner to verify your text before submission.

Highlights
  • Bypass AI detection instantly
  • Humanize any text
  • Built-in AI detector
  • One-tap humanization
  • Advanced rewriting models
  • Preserve original meaning
Features
Read full description

Undetectable brings humanizing, AI text analysis, and everyday writing tools into one focused workspace. Rewrite a draft, review how it reads, and see what changed before you copy the result. HUMANIZE YOUR WRITING Turn stiff or repetitive AI-assisted drafts into smoother, more conversational text. Choose a tone, select a rewriting strength, and refine wording for essays, emails, articles, captions, and more. CHECK AI-LIKE WRITING SIGNALS Analyze text for patterns associated with AI-generated writing. Review an estimated human-likeness score, explore writing signals, and identify passages that may deserve a closer edit. Results are estimates, not proof of who wrote the text. COMPARE EVERY CHANGE Switch between your original text, the rewritten version, and highlighted changes. See what was adjusted while keeping control over your final message. MAKE IT SOUND LIKE YOU Create a personal writing voice from samples of your own writing. The app uses those examples to guide word choice, sentence length, and style in future rewrites. MORE WAYS TO IMPROVE TEXT • Paraphrase and reword • Fix grammar • Summarize long text • Shorten wordy paragraphs • Expand ideas • Translate into 20 languages BUILT FOR YOUR WORKFLOW Paste or type text, import a file, or use the scan option. Save work in your library, revisit recent drafts, and copy finished text when you're ready. Available for iPhone, iPad, and Mac, with layouts designed for each screen. Whether you're polishing an email, editing an article, or making an AI-assisted draft feel more personal, Undetectable helps you write with greater clarity and control. Important: AI detection scores are probabilistic indicators and should not be used as the sole basis for judgments about authorship. Note: Some features require Premium subscription - Weekly Monthly and annual plans available - Subscription auto-renews unless canceled - Cancel anytime Settings By subscribing, you agree to the app's Terms of Use and Privacy Policy: - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://lixuslink.com/privacy-policy-2/

About

AI Humanizer

This app helps you make AI-generated text sound natural and human-written. It also checks content against multiple AI detectors and includes a plagiarism checker. You can even humanize AI-generated images.

Highlights
  • Humanize AI text with one tap
  • Check text against 10+ AI detectors
  • Plagiarism checker for original content
  • Humanize AI images and remove watermarks
  • Supports all major LLMs
  • Rewrite and rephrase AI content
Features
Read full description

AI Humanizer & AI Detector in one app. Humanize AI text in one tap so it reads like a real person wrote it, check any text against 10+ AI detectors like GPTZero, Turnitin and Pangram, and run a plagiarism check before you submit. Is your AI-generated content sounding mechanical or lacking natural flow? Worried that a teacher, editor or client will notice that ChatGPT wrote part of your work? Rephrasy turns AI text into human text in seconds and shows you exactly which detectors you pass. Works with text from GPT-6.1, GPT-5, Claude, Gemini, Copilot, Jasper and every other major LLM. ■ AI DETECTOR: CHECK ANY TEXT Paste your text and our detection engine runs it through 10+ AI detectors in real time. You get a precise AI score showing how likely the text is to be flagged as AI-written, plus a human score (for example 71% human). Detectors covered: Turnitin, Pangram, GPTZero, Originality AI, Copyleaks, Writer, ZeroGPT, Winston AI, Content at Scale, GPTRadar, Sapling, Corrector and more. ■ AI HUMANIZER: REWRITE, REPHRASE & HUMANIZE Got a high AI score? One tap and Rephrasy rewrites your text into smooth, natural, human-sounding writing that passes big-name detectors like Turnitin, GPTZero and Copyleaks. Keeps your meaning, fixes the robotic tone. ■ PLAGIARISM CHECKER The built-in plagiarism checker shows whether your words overlap with anything already published. Perfect for students, writers and professionals who need original, unflagged content. ■ IMAGE HUMANIZER: BYPASS SYNTHID & AI IMAGE DETECTION Humanize AI images too. Rephrasy removes the SynthID watermark and makes AI-generated images undetectable for image detection tools. ■ FEATURES • Works with all major LLMs (ChatGPT, Claude, Gemini, Copilot, Jasper, Llama) • Undetectable AI rewriter with one-tap humanizing • AI checker with 10+ detectors and a detailed per-detector report • Plagiarism checker for unique, original content • SynthID remover and AI image humanizer • Built for essays, homework, blog posts, emails and social media • Fast, secure and easy to use, no writing skills required • Free to start, upgrade for more credits ■ WHO IS IT FOR? Students who want their essays and assignments to sound like their own voice. Content creators, marketers and SEO writers who publish AI-assisted content. Professionals who send AI-drafted emails, reports and proposals. Anyone who wants to check whether a text was written by AI. ■ HOW IT WORKS 1. Paste or type your text (or pick an image) 2. Tap Detect to see your AI score across all detectors 3. Tap Humanize to rewrite it into natural, undetectable text 4. Copy, share or run a plagiarism check Download Rephrasy AI Humanizer for free and make every text sound human. Official app of https://rephrasy.ai Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.rephrasy.ai/privacy-policy

Screenshots

Undetectable AI4 screens
AI Humanizer4 screens

Verdict

The call

The clearest difference is review sentiment: AI Humanizer at 100% against Undetectable AI's 0%. AI Humanizer also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Undetectable AI sells 2 in-app purchases, starting at $3.99 per month and AI Humanizer sells 6 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Undetectable AI ships an update every 2 months, AI Humanizer every 6 weeks. The most recent releases landed on October 30, 2026 and November 12, 2026 respectively.

Scorecard2 real differences · 8 level
Undetectable AI versus AI Humanizer: the parameters behind the verdict, then further details
ParameterUndetectable AIAI Humanizer
PriceFreeFree
Rating—4.9 (9 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—9 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size14 MB55 MB
Age rating4+4+
DeveloperHAMZA HARDOULIREPHRASY

Customer experience

Undetectable AI

Written reviews7 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

AI Humanizer

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews23 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Undetectable AI

Subscriptions2
  • Undetectable AI Premium$3.991 Month
  • Undetectable AI Premium7 Days trial$24.991 Year
6 purchases

AI Humanizer

Subscriptions3
  • Growth$12.991 Month
  • Business$17.991 Month
  • Professional$39.991 Month
One-time3
  • Quick Pass$6.99
  • Credits$8.99
  • Lifetime Access$179.00

Questions

Is Undetectable AI free?
Undetectable AI is free to download, with in-app purchases available.
Is AI Humanizer free?
AI Humanizer is free to download, with in-app purchases available.
Do Undetectable AI or AI Humanizer have ads?
Neither Undetectable AI nor AI Humanizer shows ads.
Which is updated more often, Undetectable AI or AI Humanizer?
Undetectable AI ships an update every 2 months, and AI Humanizer every 6 weeks. Most recently, Undetectable AI was updated on October 30, 2026 and AI Humanizer on November 12, 2026.

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