# PDF document Scanner vs General Survey Operations

The clearest difference is in-app purchases: General Survey Operations at none against PDF document Scanner's 3. General Survey Operations also leads on update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF document Scanner sells 3 in-app purchases, starting at $5.99 per 7 days. General Survey Operations asks for nothing beyond the download.

PDF document Scanner ships an update monthly, General Survey Operations every 3 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PDF document Scanner | General Survey Operations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (88 ratings)](https://appshunter.io/ios/app/pdf-document-scanner-doc-scan/id1601237544/reviews)** | — |
| Number of ratings | **88** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 37 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bytesong Private Limited](https://appshunter.io/developer/1573353949) | [General Survey](https://appshunter.io/developer/1704834746) |

## What reviewers say

### PDF document Scanner

[App page](https://appshunter.io/ios/app/pdf-document-scanner-doc-scan/id1601237544)

Instantly scan, edit, and sign documents with this powerful yet compact scanner app. Convert files to PDF, JPG, or TXT, and utilize OCR to extract text. Securely store and share your documents with advanced editing and file management features.

**Highlights:** Scan documents to PDF, JPG, TXT, OCR text recognition, Electronic signature, PDF conversion, Document editing and file management, Secure local storage

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Monthly | $7.99 | per month |
| Yearly | $29.99 | per year |


### General Survey Operations

[App page](https://appshunter.io/ios/app/general-survey-operations/id6761612693)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF document Scanner free?

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

### Is General Survey Operations free?

General Survey Operations is free to download, with no in-app purchases.

### Do PDF document Scanner or General Survey Operations have ads?

Neither PDF document Scanner nor General Survey Operations shows ads.

### Which is updated more often, PDF document Scanner or General Survey Operations?

PDF document Scanner ships an update monthly, and General Survey Operations every 3 days. Most recently, PDF document Scanner was updated on September 23, 2026 and General Survey Operations 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.*