# UIF vs PDF Converter

The clearest difference is in-app purchases: UIF at none against PDF Converter's 2. UIF also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.6). PDF Converter's advantage is update cadence (every 2 months vs every 13 months). On price and device support there is nothing between them.

Both are free to download. PDF Converter sells 2 in-app purchases, starting at $2.99 per month. UIF asks for nothing beyond the download.

UIF ships an update every 13 months, PDF Converter every 2 months. The most recent releases landed on December 4, 2025 and September 22, 2026 respectively.

## The numbers

| Metric | UIF | PDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (496 ratings)](https://appshunter.io/ios/app/pdf-converter/id6470334944/reviews)** |
| Number of ratings | — | **496** |
| Positive reviews | — | 78.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 98 MB | 39 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VODACOM PTY LTD](https://appshunter.io/developer/567085007) | [晓珍 胡](https://appshunter.io/developer/1673886500) |

## What reviewers say

### UIF

[App page](https://appshunter.io/ios/app/uif/id1562816990)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Converter

[App page](https://appshunter.io/ios/app/pdf-converter/id6470334944)

Easily convert photos and various document types into high-quality PDF files. This tool also allows you to split existing PDFs or merge multiple PDF documents into a single file.

**Highlights:** Convert photos to PDF, Import and merge various file formats (Word, Excel, PPT) to PDF, Split PDF files, Merge multiple PDF files, High-quality PDF creation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Annual Plan | $9.99 | per year |

**What reviewers like**

- 👍 Excellent app
- 🚀 Super fast
- 👍 Good
- 👍 Great
- 👍 Good app

**What reviewers complain about**

- 😠 Charged for free trial
- 😠 Horrible app
- 😠 Does not do as mentioned
- 😠 Invasive advertising
- 😠 Very buggy

**Reported bugs**

- App does not convert files as advertised
- Invasive advertising slows down operations

**Requested features**

- Open PDF page


## Frequently asked questions

### Is UIF free?

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

### Is PDF Converter free?

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

### Do UIF or PDF Converter have ads?

PDF Converter shows ads; UIF does not.

### Which is updated more often, UIF or PDF Converter?

UIF ships an update every 13 months, and PDF Converter every 2 months. Most recently, UIF was updated on December 4, 2025 and PDF Converter on September 22, 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.*