# uPass AI

OpenAITools.app のテレメトリ（2026-11-11 検証）によると、uPass AI（upass.ai）は検出されないAI に分類される AI プラットフォームで、月間 1.04万の訪問を生み出し、前月比のトラフィック増減は -1.62万（-60.8%）です。主要な地域市場はアメリカ合衆国（トラフィックシェア 39.9%）で、フリーミアムの料金モデルで運営されています。月間ボリューム別の主な競合代替ツールには StealthWriter（月間 288.71万訪問）、AI Undetect（月間 11.35万訪問）、Phrasly（月間 121万訪問）が含まれます。

uPass AI is a student-focused AI humanizer and checker. It rewrites AI-generated text into natural, human-sounding prose, then lets you test the result against multiple AI detectors in one run.

## 主なテレメトリと仕様

| 指標 | 値 |
| :--- | :--- |
| ツール名 | uPass AI |
| ハンドル | upass |
| Status | active |
| Origin | independent |
| Maintenance | active |
| 公式ドメイン | upass.ai |
| ウェブサイト URL | https://upass.ai |
| カテゴリ | 検出されないAI, AI バイパスツール, AI リライトツール, Humanizer AI, AI検出ツール |
| 料金モデル | フリーミアム |
| 月間訪問数 | 10,419 |
| 前月比トラフィック変動 | -16,150 |
| 前月比成長率 | -60.8% |
| 主要市場 | アメリカ合衆国 |
| 市場シェア | 39.9% |
| ダイレクト訪問 | 4,187 |
| オーガニック検索訪問 | — |
| ソーシャル訪問 | — |
| リファラル訪問 | 1,011 |
| メール訪問 | 279 |
| レビュースコア | 3.6 |
| 保存数 | 1 |
| 対応プラットフォーム | ウェブサイト |
| 請求プラットフォーム |  |
| 属性 | 機能: ウェブサイト; 料金: フリーミアム |
| タグ | AIバイパー, AI検出器, AIヒューマナイザー, 検出不能なAI, 盗用チェッカー, Turnitin回避, 学術ライティング, コンテンツ制作 |

## 概要

uPass AI is a student-focused AI humanizer and checker. It rewrites AI-generated text into natural, human-sounding prose, then lets you test the result against multiple AI detectors in one run.

## 料金とプラン

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.

## 主な機能と特長

- **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.

## 主なユースケース

- **Review an essay for AI-detection risk (University student):** Run a draft through the multi-detector checker before submitting, then humanize the passages that score as machine-written.
- **Polish AI-assisted literature notes (Graduate researcher):** Use the humanizer to rework awkward, repetitive machine phrasing while keeping the original meaning and citations intact.
- **Rework marketing copy into natural prose (Content marketer):** Rewrite AI-drafted captions and product text into more natural phrasing and run it through the detector to spot passages that need another pass.
- **Humanize non-English drafts (Multilingual writer):** Use the rewriter's 50+ language support on non-English drafts and correct phrasing that sounds translated.

## 強み

- 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
- Credits, word limits and per-input ceilings are stated openly on the pricing page

## 制約・デメリット

- 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

## よくある質問

### What is uPass AI?
It is a writing tool with two parts: an AI humanizer that rewrites AI-generated text into more natural prose, and an AI detector that checks text against several detection services at once so you can judge its AI-detection risk.

### How much does uPass AI cost?
It offers a free plan with 300 words per month for both the humanizer and the detector, then Basic at $14.99/month (5,000 words), Pro at $19.99/month (30,000 words) and Unlimited at $79.99/month. Annual billing lowers the monthly price on the paid tiers.

### Which detectors does it claim to bypass?
The site states it is tested against Turnitin as well as GPTZero, Originality.ai, Copyleaks, ZeroGPT, Sapling, Writer, QuillBot and Crossplag. Detector algorithms change frequently, so results can vary over time and should be verified on your own text.

### What are the humanization modes?
Three modes — Basic, Advanced and Aggressive — trading off how heavily the text is restructured against how closely it stays to the original phrasing. Basic stays closest to the source; Aggressive changes the most sentence structure.

### Can I use the output for a graded assignment?
You are responsible for how you use it. The tool's output passes AI and plagiarism checks, but many schools treat AI-assisted writing as an integrity violation, so check your institution's policy before relying on it.

### uPass AI の月間トラフィックと成長トレンドはどうですか？
uPass AI は現在、月間 1.04万の訪問があり、前月比のトラフィック変動は -1.62万（成長率 -60.8%）です。主要な流入市場はアメリカ合衆国（シェア 39.9%）で、月間 4187 のダイレクト訪問と月間 — のオーガニック検索訪問を含みます。

### uPass AI は無料ですか？料金モデルは何ですか？
uPass AI はフリーミアムの料金モデルで運営されています。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. 対応する請求・チェックアウトプラットフォームには未掲載が含まれます。

### 2026年における uPass AI の最適な代替ツールはどれですか？
OpenAITools.app のカテゴリ別トラフィックと機能の適合性に基づくと、uPass AI の代替ツールトップ5は次のとおりです: 1. StealthWriter（月間 288.71万訪問）; 2. AI Undetect（月間 11.35万訪問）; 3. Phrasly（月間 121万訪問）; 4. Rewritify（月間 9.95万訪問）; 5. Uncheck AI（月間 8.97万訪問）。

### uPass AI はどのプラットフォームと主要な AI 機能に対応していますか？
uPass AI は検出されないAI, AI バイパスツール, AI リライトツール, Humanizer AI に分類され、以下のプラットフォームに対応しています: ウェブサイト。中核機能のタグには AIバイパー, AI検出器, AIヒューマナイザー, 検出不能なAI, 盗用チェッカー, Turnitin回避が含まれます。

## 代替ツール

| ツール名 | 月間訪問数 | 料金モデル | 比較 |
| :--- | :--- | :--- | :--- |
| [StealthWriter](https://openaitools.app/ja/tool/stealthwriter) | 2,887,114 | フリーミアム | [比較](https://openaitools.app/ja/compare/stealthwriter-vs-upass) |
| [AI Undetect](https://openaitools.app/ja/tool/ai-undetect) | 113,490 | フリーミアム、有料 | [比較](https://openaitools.app/ja/compare/ai-undetect-vs-upass) |
| [Phrasly](https://openaitools.app/ja/tool/phrasly-ai) | 1,209,985 | Freemium, Subscription | [比較](https://openaitools.app/ja/compare/phrasly-ai-vs-upass) |
| [Rewritify](https://openaitools.app/ja/tool/rewritify-undetectable-ai-rewriter) | 99,469 | フリーミアム | [比較](https://openaitools.app/ja/compare/rewritify-undetectable-ai-rewriter-vs-upass) |
| [Uncheck AI](https://openaitools.app/ja/tool/uncheck-ai) | 89,701 | フリーミアム | [比較](https://openaitools.app/ja/compare/uncheck-ai-vs-upass) |
| [AI Humanize](https://openaitools.app/ja/tool/ai-humanize) | 2,152,089 | フリーミアム、有料 | [比較](https://openaitools.app/ja/compare/ai-humanize-vs-upass) |
| [OneClickHuman](https://openaitools.app/ja/tool/one-click-human) | 12,782 | フリーミアム、無料トライアル、有料 | [比較](https://openaitools.app/ja/compare/one-click-human-vs-upass) |
| [Humanize AI Text](https://openaitools.app/ja/tool/humanize-ai-text-ai) | 30,848 | 無料 | [比較](https://openaitools.app/ja/compare/humanize-ai-text-ai-vs-upass) |
| [Rephrasy](https://openaitools.app/ja/tool/rephrasy) | 153,109 | フリーミアム、無料トライアル | [比較](https://openaitools.app/ja/compare/rephrasy-vs-upass) |
| [Undetectable AI](https://openaitools.app/ja/tool/undetectable-ai) | 3,113,403 | フリーミアム | [比較](https://openaitools.app/ja/compare/undetectable-ai-vs-upass) |
| [Humanize.im](https://openaitools.app/ja/tool/humanize-ai-text-free-online) | 63,417 | フリーミアム、有料 | [比較](https://openaitools.app/ja/compare/humanize-ai-text-free-online-vs-upass) |
| [HumanizeAI.pro](https://openaitools.app/ja/tool/humanizeai-pro) | 9,652,312 | 無料 | [比較](https://openaitools.app/ja/compare/humanizeai-pro-vs-upass) |

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出典: https://openaitools.app/ja/tool/upass