# PDF Viewer vs AI Detector & Humanizer・

The clearest difference is review sentiment: PDF Viewer at 89% against AI Detector & Humanizer・'s 23%. PDF Viewer also leads on rating (4.8 vs 4.5). AI Detector & Humanizer・'s advantage is update cadence (every 11 days vs every 3 months) and device support (4 vs 2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. PDF Viewer sells 2 in-app purchases, starting at $4.99 per month and AI Detector & Humanizer・ sells 7 in-app purchases, starting at $2.95 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Viewer holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 235 and 148 respectively. Written reviews point the same way: 89% of PDF Viewer's written reviews are positive against 23% of AI Detector & Humanizer・'s.

PDF Viewer ships an update every 3 months, AI Detector & Humanizer・ every 11 days. The most recent releases landed on September 8, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PDF Viewer | AI Detector & Humanizer・ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (235 ratings)](https://appshunter.io/ios/app/pdf-viewer-reader-and-editor/id6720703022/reviews)** | [4.5 (148 ratings)](https://appshunter.io/ios/app/ai-detector-and-humanizer/id6741908201/reviews) |
| Number of ratings | **235** | 148 |
| Positive reviews | **89.5% of reviews** | 23.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 11 MB | 39 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Lee](https://appshunter.io/developer/1206652057) | [Atul Brahmbhatt](https://appshunter.io/developer/1852989892) |

## What reviewers say

### PDF Viewer

[App page](https://appshunter.io/ios/app/pdf-viewer-reader-and-editor/id6720703022)

Easily convert various file formats to PDF and back again. This app supports conversions from images, documents, and presentations, allowing you to manage and share your files efficiently. It also offers OCR capabilities to convert photos into editable text.

**Highlights:** Convert JPG, Word, Excel, PPT to PDF, Convert PDF to other formats, Share and save converted files, Access conversion history, Pull files from iCloud or gallery, Convert Photos to Text (OCR)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Converter: Premium | $4.99 | per month |
| PDF Converter: Premium | Free | one-time |

**What reviewers like**

- 👍 Easy and intuitive to use
- 🚀 Fast and efficient conversion
- 💰 Free or affordable pricing
- 📄 Excellent PDF conversion and merging capabilities
- 🎨 Clean and simple interface design

**What reviewers complain about**

- 🐛 Forced review prompt before app usage
- ❌ Missing file deletion option
- 📸 No in-app camera scanning capability
- ⚙️ No file size customization options
- 🔄 Inconsistent performance across devices

**Reported bugs**

- App doesn't function on iPad mini (current model)
- Forced review requirement blocks app access
- Document quality issues when converting images to PDF
- Occasional glitches during operation

**Requested features**

- Add file deletion functionality
- Implement in-app camera scanning feature
- Add page merge and delete options
- Include file size/quality customization
- Support for more device types (iPad compatibility)


### AI Detector & Humanizer・

[App page](https://appshunter.io/ios/app/ai-detector-and-humanizer/id6741908201)

This app accurately identifies AI-generated text and images using advanced algorithms. It also transforms AI-written content into natural, human-like text that bypasses detection.

**Highlights:** AI text detection, AI image detection, AI text humanizer, Multiple format support (DOC, PDF, TXT), Cross-validation with leading models, Authenticity scoring for images

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.95 | per 7 days |
| Weekly | $5.19 | per 7 days |
| Monthly | $9.29 | per month |
| Monthly | $19.49 | per month |
| Yearly | $39.49 | per month |
| Yearly | $59.90 | per year |
| Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is PDF Viewer free?

PDF Viewer is free to download, with in-app purchases available.

### Is AI Detector & Humanizer・ free?

AI Detector & Humanizer・ is free to download, with in-app purchases available.

### Which has better reviews, PDF Viewer or AI Detector & Humanizer・?

PDF Viewer is rated higher. PDF Viewer averages 4.8 out of 5 from 235 ratings, while AI Detector & Humanizer・ averages 4.5 from 148 ratings.

### Do PDF Viewer or AI Detector & Humanizer・ have ads?

Neither PDF Viewer nor AI Detector & Humanizer・ shows ads.

### Which is updated more often, PDF Viewer or AI Detector & Humanizer・?

PDF Viewer ships an update every 3 months, and AI Detector & Humanizer・ every 11 days. Most recently, PDF Viewer was updated on September 8, 2026 and AI Detector & Humanizer・ on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*