# Image to PDF Converter · Edit vs Understudy

The clearest difference is in-app purchases: Understudy at none against Image to PDF Converter · Edit's 11. Understudy also leads on update cadence (weekly vs every 2 weeks). Image to PDF Converter · Edit's advantage is iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Image to PDF Converter · Edit sells 11 in-app purchases, starting at $4.99 per month. Understudy asks for nothing beyond the download.

Image to PDF Converter · Edit ships an update every 2 weeks, Understudy weekly. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Image to PDF Converter · Edit | Understudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (305 ratings)](https://appshunter.io/ios/app/image-to-pdf-converter-edit/id1597239701/reviews)** | — |
| Number of ratings | **305** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Subscription | — |
| Size | 96 MB | 48 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simple Health](https://appshunter.io/developer/1687443479) | [Christopher Walsh](https://appshunter.io/developer/1745819079) |

## What reviewers say

### Image to PDF Converter · Edit

[App page](https://appshunter.io/ios/app/image-to-pdf-converter-edit/id1597239701)

Easily convert photos and various image files into professional PDFs. Edit documents, add signatures, compress files, and secure them with passwords. Organize and share your PDFs efficiently, even offline.

**Highlights:** Convert images to PDF, Scan paper documents, Resize and crop images, Edit PDFs with annotations and signatures, Compress PDF files, Set password protection, Work offline

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $4.99 | per month |
| Premium - Weekly | $4.99 | per 7 days |
| Premium - Weekly | $6.99 | per 7 days |
| Monthly premium | $9.99 | per month |
| Premium - Yearly | $14.99 | per year |
| Yearly subscription | $20.99 | per year |
| Annual Premium | $29.99 | per year |
| Annual Premium | $29.99 | per year |
| Yearly premium | $29.99 | per year |
| Premium - Yearly | $29.99 | per year |
| Premium - Yearly | $29.99 | per year |

**What reviewers like**

- ⭐ Good app for conversion (rare)
- 👍 Easy to use (rare)
- 💡 AI enhancement (rare)

**What reviewers complain about**

- ❌ Paywall for basic features
- ❌ Misleading "free" claims
- ❌ Unexpected subscription charges
- ❌ Difficult subscription cancellation
- ❌ High subscription costs

**Reported bugs**

- App crashes frequently
- App does not open after update
- Files are deleted from gallery
- PDFs are of poor quality or unopenable
- Subscription cancellation not working

**Requested features**

- Allow basic PDF conversion for free
- Clearer pricing upfront
- Easier subscription cancellation
- More free features/limited free use
- Add advertisements instead of subscriptions for basic features


### Understudy

[App page](https://appshunter.io/ios/app/understudy/id6747321976)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Image to PDF Converter · Edit free?

Image to PDF Converter · Edit is free to download, with in-app purchases available.

### Is Understudy free?

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

### Do Image to PDF Converter · Edit or Understudy have ads?

Neither Image to PDF Converter · Edit nor Understudy shows ads.

### Which is updated more often, Image to PDF Converter · Edit or Understudy?

Image to PDF Converter · Edit ships an update every 2 weeks, and Understudy weekly. Most recently, Image to PDF Converter · Edit was updated on October 18, 2026 and Understudy on October 7, 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.*