# Fast Scan vs PDF Scan Document

The clearest difference is review sentiment: PDF Scan Document at 100% against Fast Scan's 11%. PDF Scan Document also leads on monetization model (free with in-app purchases vs subscription) and rating (4.0 vs 3.5). Fast Scan's advantage is update cadence (every 5 weeks vs every 8 months) and ratings volume (321 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fast Scan sells 11 in-app purchases, starting at $1.99 per 7 days and PDF Scan Document sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Scan Document holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: Fast Scan has 321 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 11% of Fast Scan's written reviews are positive against 100% of PDF Scan Document's.

Fast Scan ships an update every 5 weeks, PDF Scan Document every 8 months. The most recent releases landed on October 5, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Fast Scan | PDF Scan Document |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (321 ratings)](https://appshunter.io/ios/app/fast-scanpdf-doucment-scan/id1435571925/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/pdf-scan-document-scanner-app/id6464469337/reviews)** |
| Number of ratings | **321** | 3 |
| Positive reviews | 10.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 8 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 214 MB | 46 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Zhongcheng World Information Technology Co., Ltd](https://appshunter.io/developer/1674523091) | [Dao Thang](https://appshunter.io/developer/949747058) |

## What reviewers say

### Fast Scan

[App page](https://appshunter.io/ios/app/fast-scanpdf-doucment-scan/id1435571925)

Transform your phone into a powerful scanner and AI assistant. Quickly digitize documents, identify objects, plants, and animals, and translate text in real-time. Manage your work and life more efficiently with this fun and intuitive app.

**Highlights:** AI object, plant, and animal identification, Real-time recognition results, Multi-language translation and voice reading, Document and ID scanning, Automatic edge correction and trimming, Text translation for browsing and travel

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scanner Subscription | $1.99 | per 7 days |
| Scanner Subscription | $1.99 | per 7 days |
| Scanner Subscription | $4.99 | per month |
| Unlock all features for 1 week | $6.99 | per 7 days |
| Unlock all features for 1 week | $7.99 | per 7 days |
| Unlock all features for 1 week | $7.99 | per 7 days |
| VIP features(Lite) for 1month | $9.99 | per month |
| Scanner Subscription | $9.99 | per month |
| Unlock all features for 1month | $19.99 | per month |
| Unlock all features for 1 year | $89.99 | per year |
| Unlock all features for 1 year | $89.99 | per year |

**What reviewers like**

- 🚀 Fast and efficient scanning performance
- 👍 Simple and easy-to-use interface
- 💪 Powerful functionality despite being free
- 📄 Accurate text extraction capabilities
- ⚡ Quick file format conversion

**What reviewers complain about**

- 💰 Deceptive pricing model - advertised as free but requires paid subscription
- 🚫 Paywall blocks all features immediately upon use
- 😤 Hidden subscription charges without clear disclosure
- 🔴 Inaccurate object/animal/plant recognition
- 📵 Aggressive pop-up ads for premium upgrades

**Reported bugs**

- Inaccurate object identification (e.g., dog identified as sea lion, plant as bamboo)
- Misidentification of colors and basic items
- App crashes or fails to load properly
- Pop-up ads appear every 30 seconds making app unusable
- Automatic billing without user confirmation

**Requested features**

- Make core features available for free or with optional premium features
- Implement transparent pricing displayed upfront in app store
- Add extended free trial period before requiring payment
- Improve object recognition accuracy
- Reduce frequency of upgrade pop-ups


### PDF Scan Document

[App page](https://appshunter.io/ios/app/pdf-scan-document-scanner-app/id6464469337)

Transform your device into a powerful mobile scanner. Quickly capture, edit, and share documents, receipts, and notes as PDFs or JPGs. Features include live text scanning, OCR, and signature addition.

**Highlights:** Live text scanning with AI, OCR for text extraction, Document editing and reordering, Signature addition, Convert various file types to PDF/JPG, Import from Photos and Files

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Week All Feature & No Limits | $2.99 | per 7 days |
| A Month All Feature, No Limits | $5.99 | per month |
| A Year All Feature & No Limits | $19.99 | per year |


## Frequently asked questions

### Is Fast Scan free?

Fast Scan is free to download, with in-app purchases available.

### Is PDF Scan Document free?

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

### Which has better reviews, Fast Scan or PDF Scan Document?

PDF Scan Document is rated higher. Fast Scan averages 3.5 out of 5 from 321 ratings, while PDF Scan Document averages 4.0 from 3 ratings.

### Do Fast Scan or PDF Scan Document have ads?

Both Fast Scan and PDF Scan Document show ads.

### Which is updated more often, Fast Scan or PDF Scan Document?

Fast Scan ships an update every 5 weeks, and PDF Scan Document every 8 months. Most recently, Fast Scan was updated on October 5, 2026 and PDF Scan Document on September 28, 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.*