# ImageConverter vs PolyPDF

The clearest difference is rating: PolyPDF at 5.0 against ImageConverter's 4.0. ImageConverter's advantage is monetization model (free vs freemium) and iOS requirement (11.0 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PolyPDF holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ImageConverter | PolyPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/imageconverter/id1483002407/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polypdf/id6751167250/reviews)** |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 57 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Kenta Tanaka](https://appshunter.io/developer/914865018) | [Euclidean Software LLC](https://appshunter.io/developer/955362555) |

## What reviewers say

### ImageConverter

[App page](https://appshunter.io/ios/app/imageconverter/id1483002407)

Easily resize and change the file format of your images. Supports batch conversions for up to 15 images at once, with options to specify size by percentage or pixels while retaining aspect ratio. Save in HEIC, PNG, or JPG formats.

**Highlights:** Resize images by percentage or pixels, Convert between HEIC, PNG, and JPG, Batch conversion up to 15 images, Maintain aspect ratio, Simple 4-step conversion process

**Features:** macOS Compatibility

**In-app purchases:** none


### PolyPDF

[App page](https://appshunter.io/ios/app/polypdf/id6751167250)

This app provides a PDF studio for drawing-set review and markup on iPad and iPhone. It allows users to open plans, navigate pages, measure to scale, add various annotations, and save their work. Advanced features are available via an optional Pro purchase.

**Highlights:** Drawing-set review, PDF markup tools, Measure to scale, Add callouts, shapes, stamps, Markup Table for findings, Export and share PDFs

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ImageConverter free?

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

### Is PolyPDF free?

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

### Which has better reviews, ImageConverter or PolyPDF?

PolyPDF is rated higher. ImageConverter averages 4.0 out of 5 from 1 ratings, while PolyPDF averages 5.0 from 2 ratings.

### Do ImageConverter or PolyPDF have ads?

Neither ImageConverter nor PolyPDF shows ads.

### Which is updated more often, ImageConverter or PolyPDF?

ImageConverter ships an update every 3 weeks, and PolyPDF every 3 weeks. Most recently, ImageConverter was updated on October 3, 2026 and PolyPDF on October 8, 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.*