# AI Detector vs PDF Reader

The clearest difference is update cadence: PDF Reader at every 2 months against AI Detector's every 15 months. AI Detector's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Detector sells 3 in-app purchases, starting at $4.99 per 7 days and PDF Reader sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AI Detector ships an update every 15 months, PDF Reader every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AI Detector | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/ai-detector-humanizer-aiscan/id6455939016/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 87 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Firesys](https://appshunter.io/developer/1632871201) | [Pawel Lukasz](https://appshunter.io/developer/1846816545) |

## What reviewers say

### AI Detector

[App page](https://appshunter.io/ios/app/ai-detector-humanizer-aiscan/id6455939016)

This tool helps you identify AI-generated text, images, and videos using advanced algorithms. It provides confidence scores for detections and offers educational resources to understand AI content trends. Empower yourself to distinguish between human and machine-created content online.

**Highlights:** AI Detection Algorithms, Real-Time Analysis, Confidence Scoring, Source Verification, Educational Resources, User-Friendly Interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Detector Subscription | $4.99 | per 7 days |
| AI Detector Subscription | $14.99 | per month |
| AI Detector Subscription | $29.99 | per year |


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-prodoc-plus/id6754163428)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProScan+ \| Monthly Subscription | $4.99 | per month |
| ProScan+ Subscription every 3mo | $9.99 | per 3 months |
| ProScan+ Subscription Yearly | $49.99 | per year |


## Frequently asked questions

### Is AI Detector free?

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

### Is PDF Reader free?

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

### Do AI Detector or PDF Reader have ads?

Both AI Detector and PDF Reader show ads.

### Which is updated more often, AI Detector or PDF Reader?

AI Detector ships an update every 15 months, and PDF Reader every 2 months. Most recently, AI Detector was updated on October 24, 2026 and PDF Reader on October 25, 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.*