# Format Conversion vs Image PDF Converter

The clearest difference is rating: Image PDF Converter at 5.0 against Format Conversion's 1.0. Image PDF Converter also leads on in-app purchases (none vs 3). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Format Conversion sells 3 one-off in-app purchases. Image PDF Converter asks for nothing beyond the download.

Image PDF Converter holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Format Conversion ships an update every 11 days, Image PDF Converter every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Format Conversion | Image PDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/format-conversion/id6751340651/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/image-pdf-converter/id6752516065/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 43 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [月霞 陈](https://appshunter.io/developer/1834548591) | [zzari](https://appshunter.io/developer/1839643671) |

## What reviewers say

### Format Conversion

[App page](https://appshunter.io/ios/app/format-conversion/id6751340651)

Transform videos, Live Photos, and images with a versatile toolbox. Create dynamic wallpapers, bring stills to life, edit audio, reformat for social media, compress, trim, and more without needing editing skills.

**Highlights:** Video to dynamic wallpaper, Live Photo to video conversion, Video to social media format, Still image to Live Photo, Extract lossless audio, Compress photos without quality loss, Convert between various image and video formats

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 转换1次 | $0.99 | one-time |
| 转换10次 | $8.99 | one-time |
| 永远转换 | $14.99 | one-time |


### Image PDF Converter

[App page](https://appshunter.io/ios/app/image-pdf-converter/id6752516065)

Easily convert images between various formats, including HEIC from iPhones. Offers real-time previews, a built-in viewer, and seamless sharing. Optimized for speed and memory efficiency.

**Highlights:** Supports 7+ image formats, HEIC to JPG/PNG conversion, Real-time preview, In-app image viewer, Direct file sharing, Organized image gallery

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

**In-app purchases:** none


## Frequently asked questions

### Is Format Conversion free?

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

### Is Image PDF Converter free?

Image PDF Converter is free to download, with no in-app purchases.

### Which has better reviews, Format Conversion or Image PDF Converter?

Image PDF Converter is rated higher. Format Conversion averages 1.0 out of 5 from 1 ratings, while Image PDF Converter averages 5.0 from 1 ratings.

### Do Format Conversion or Image PDF Converter have ads?

Neither Format Conversion nor Image PDF Converter shows ads.

### Which is updated more often, Format Conversion or Image PDF Converter?

Format Conversion ships an update every 11 days, and Image PDF Converter every 3 weeks. Most recently, Format Conversion was updated on October 30, 2026 and Image PDF Converter on October 30, 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.*