# ImgPDF vs DutySync

The clearest difference is in-app purchases: DutySync at none against ImgPDF's 2. DutySync also leads on update cadence (every 3 days vs every 2 months) and device support (3 vs 1). ImgPDF's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. ImgPDF sells 2 in-app purchases, starting at $5.99 per 7 days. DutySync asks for nothing beyond the download.

ImgPDF ships an update every 2 months, DutySync every 3 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ImgPDF | DutySync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/imgpdf-convert-image-to-pdf/id6747831333/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 82 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MIR BRUSC BATAK](https://appshunter.io/developer/1780325354) | [Abdulraheem AlZahrani](https://appshunter.io/developer/1895828042) |

## What reviewers say

### ImgPDF

[App page](https://appshunter.io/ios/app/imgpdf-convert-image-to-pdf/id6747831333)

Easily transform images and scans into professional PDF documents directly on your iPhone. This tool supports batch conversions, OCR with layout preservation, and secure on-device processing. Share your created PDFs instantly via various methods.

**Highlights:** Convert JPG/PNG to PDF, Image to text (OCR), Batch conversion, Scan photos to PDF, Secure on-device conversion, Share/export PDFs

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $5.99 | per 7 days |
| Yearly subscription | $19.99 | per year |


### DutySync

[App page](https://appshunter.io/ios/app/dutysync/id6775776723)

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

**In-app purchases:** none


## Frequently asked questions

### Is ImgPDF free?

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

### Is DutySync free?

DutySync is free to download, with no in-app purchases.

### Do ImgPDF or DutySync have ads?

DutySync shows ads; ImgPDF does not.

### Which is updated more often, ImgPDF or DutySync?

ImgPDF ships an update every 2 months, and DutySync every 3 days. Most recently, ImgPDF was updated on October 12, 2026 and DutySync on October 3, 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.*