# uPass AI vs ZeroGPT

uPass AI records 10,419 monthly visits with -60.8% month-over-month growth and Freemium pricing. ZeroGPT records 32,864,541 monthly visits with +19.7% growth and Freemium, Paid pricing.

| Metric | [uPass AI](https://openaitools.app/tool/upass) | [ZeroGPT](https://openaitools.app/tool/zerogpt) |
| :--- | :--- | :--- |
| Website URL | https://upass.ai | https://www.zerogpt.com |
| Categories | Undetectable AI, AI Bypasser, AI Rewriter, Humanizer AI | AI Content Detector, AI Detector, AI Checker, AI Plagiarism Checker |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 10,419 | 32,864,541 |
| MoM Growth Rate | -60.8% | +19.7% |
| Primary Market | United States | United States |
| Direct Visits | 4,187 | 8,220,007 |
| Review Score | 3.6 | 3.8 |
| Saved Count | 1 | 31 |
| Supported Platforms | Website | Website |

## uPass AI

uPass AI combines two tools that students tend to use together. The first is an undetectable AI rewriter: you paste text that was generated by a chatbot or assistant, choose an intensity level, and the service rewrites it so the phrasing and sentence patterns look less machine-like. The second is an all-in-one AI detector that runs your text through multiple detection services at once, giving you one consolidated view of the detection risk instead of subscribing to each detector separately.

The rewriter offers three modes — Basic, Advanced and Aggressive — that trade off how heavily the text is restructured against how closely it stays to your original wording. The company positions it for essays, papers and assignments, and stresses that the output should not be flagged by either AI detectors or plagiarism checkers. The interface and the humanizer support more than fifty languages.

Pricing is credit-based and clearly tiered: a free plan with a small monthly allowance so you can test the workflow, then Basic, Pro and Unlimited subscriptions that raise both the per-input word ceiling and the monthly word budget. Because detector models are updated constantly, treat any claimed bypass rate as a snapshot rather than a guarantee, and keep in mind that using AI assistance for graded work may violate your institution's integrity policy.

**Pricing & Plans:** Freemium. The free plan gives 300 words per month for both the humanizer and the detector. Paid tiers: Basic $14.99/month (5,000 words/month, up to 500 words per input), Pro $19.99/month (30,000 words/month, up to 1,000 words per input) and Unlimited $79.99/month (unlimited words). Yearly billing discounts the paid monthly prices.

- **AI humanizer with three intensity modes:** Paste AI-written text and uPass rewrites it with vocabulary and sentence structures that read like a person wrote it, rather than simple synonym swapping.
- **Multi-detector AI checker:** Check a passage against several popular detectors in a single run instead of submitting it to each service separately, and see where your text stands.
- **Basic, Advanced and Aggressive settings:** Select Basic, Advanced or Aggressive depending on how much restructuring the text needs while keeping the meaning intact.
- **Plagiarism-conscious rewriting:** The rewriter generates varied phrasing designed to keep output free of matches flagged by plagiarism checkers as well as AI detectors.
- **Multilingual support:** The humanizer accepts and outputs text in more than fifty languages, with a browser interface localized into many of them.

**Strengths:** Detector and humanizer live in one interface, with one consolidated detection report; Free tier is enough to judge output quality before paying; Three rewriting intensities let you tune how far the text moves from the source; Supports more than 50 languages

**Limitations:** Free plan is very limited at 300 words per month; Humanizer output still needs a human proofread for accuracy in technical subjects; Results against any given detector can change as detectors update; Using it may conflict with the academic integrity rules of some institutions

[Profile (Markdown)](https://openaitools.app/tool/upass.md)

## ZeroGPT

ZeroGPT is best known as an AI content detector, but the site has expanded into a full writing and verification toolkit. The core AI/GPT detector lets you paste text or upload a file and returns a highlighted analysis showing which sentences look machine-written, with a percentage gauge and an automatically generated PDF report you can use as documentation.

Around that core sit several companion detectors and writers. The AI image detector and AI video detector extend checking beyond text; the plagiarism checker scans against billions of sources; and the AI humanizer and paraphraser rewrite text into a more natural style. A grammar checker, summarizer, translator, dictionary, word counter, citation generator, and AI email helper round out day-to-day writing tasks. The company says its multi-stage DeepAnalyse model is trained on internet text, educational datasets, and proprietary synthetic AI datasets, covers over 35 LLM families, and reports 98.4% detection accuracy with a false positive rate under 1%.

Access is freemium: the main tools work free in the browser, with MAX and EXPERT subscriptions for heavier use and premium features, and a separate API for organizations that need large-scale integration. ZeroGPT also runs on WhatsApp and Telegram through a bot, letting you chat, detect AI text, summarize, paraphrase, translate, and check grammar without leaving the messaging app.

**Pricing & Plans:** Freemium with paid tiers. Core tools such as the AI detector, summarizer, and grammar checker are usable free in the browser, while MAX and EXPERT subscriptions unlock higher limits and premium features, and API access is sold separately for organizations.

- **AI and ChatGPT detection:** Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
- **AI image and video detection:** Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
- **Plagiarism checking and humanizing:** Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
- **Writing and productivity tools:** A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.
- **API for organizations:** A documented REST API exposes detection, plagiarism, paraphrasing, summarization, grammar, chatbot, and translation endpoints for organizations that need to embed ZeroGPT at scale.

**Strengths:** Free browser access to the core AI detector, summarizer, and grammar checker; Sentence-level highlighting with an overall percentage and exportable PDF reports; Extends beyond text to AI image and video detection, plus plagiarism checking; Broad companion toolkit: humanizer, paraphraser, translator, dictionary, citations, email helper

**Limitations:** AI detectors can produce false positives, so results should be treated as a signal rather than proof; The strongest features sit behind MAX/EXPERT paid tiers and API access is a separate purchase; Character limits apply to the free detection box; No detection tool can guarantee correctness across every model and language

[Profile (Markdown)](https://openaitools.app/tool/zerogpt.md)

## Frequently Asked Questions

### How do uPass AI and ZeroGPT compare in monthly traffic?

uPass AI has 10,419 monthly visits, while ZeroGPT has 32,864,541. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

uPass AI has a month-over-month growth rate of -60.8%; ZeroGPT has +19.7%.

### How does pricing compare?

uPass AI: Freemium. Freemium. The free plan gives 300 words per month for both the humanizer and the detector. Paid tiers: Basic $14.99/month (5,000 words/month, up to 500 words per input), Pro $19.99/month (30,000 words/month, up to 1,000 words per input) and Unlimited $79.99/month (unlimited words). Yearly billing discounts the paid monthly prices. ZeroGPT: Freemium, Paid. Freemium with paid tiers. Core tools such as the AI detector, summarizer, and grammar checker are usable free in the browser, while MAX and EXPERT subscriptions unlock higher limits and premium features, and API access is sold separately for organizations.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection. | [.md](https://openaitools.app/tool/grammarly.md) |
| 2 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 3 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT. | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 4 | [HumanizeAI.pro](https://openaitools.app/tool/humanizeai-pro) | 9,652,312 | +26% | Free | Free browser AI humanizer that rewrites AI text to read naturally | [.md](https://openaitools.app/tool/humanizeai-pro.md) |
| 5 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers. | [.md](https://openaitools.app/tool/scribbr.md) |
| 6 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally. | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 7 | [StealthWriter](https://openaitools.app/tool/stealthwriter) | 2,887,114 | +15.5% | Freemium | Humanize AI text and check how human it reads | [.md](https://openaitools.app/tool/stealthwriter.md) |
| 8 | [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | -14.1% | Paid, Contact for Pricing | Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages. | [.md](https://openaitools.app/tool/copyleaks.md) |
| 9 | [AI Humanize](https://openaitools.app/tool/ai-humanize) | 2,152,089 | +8.1% | Freemium, Paid | Turn AI-generated text into natural, human-sounding writing | [.md](https://openaitools.app/tool/ai-humanize.md) |
| 10 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers. | [.md](https://openaitools.app/tool/originality.md) |

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Source: https://openaitools.app/compare/upass-vs-zerogpt

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