# PDF Size Reducer vs SlangDecoder

The clearest difference is price: PDF Size Reducer at Free against SlangDecoder's $2.99. PDF Size Reducer also leads on update cadence (every 8 days vs every 2 months). SlangDecoder's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

PDF Size Reducer is free to download; SlangDecoder costs $2.99 up front. PDF Size Reducer sells 3 in-app purchases, starting at $1.99 per 7 days. SlangDecoder asks for nothing beyond the download.

PDF Size Reducer ships an update every 8 days, SlangDecoder every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | PDF Size Reducer | SlangDecoder |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pdf-size-reducer-pdfbuddy/id6757869694/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 4 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [App Vista Studio](https://appshunter.io/developer/1566540600) | [Greg Anderson](https://appshunter.io/developer/345127565) |

## What reviewers say

### PDF Size Reducer

[App page](https://appshunter.io/ios/app/pdf-size-reducer-pdfbuddy/id6757869694)

Easily scan documents, convert images and text to PDF, and manage your files on the go. This app offers essential tools for creating, editing, and signing PDFs with a simple interface.

**Highlights:** Scan documents to PDF, Convert images and text to PDF, Convert PDFs to images and Word documents, Merge and split PDF files, Compress PDF size, Add watermarks and signatures, Secure and share PDFs

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |


### SlangDecoder

[App page](https://appshunter.io/ios/app/slangdecoder/id6761937094)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Size Reducer free?

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

### Is SlangDecoder free?

SlangDecoder costs $2.99, with no in-app purchases.

### Do PDF Size Reducer or SlangDecoder have ads?

PDF Size Reducer shows ads; SlangDecoder does not.

### Which is updated more often, PDF Size Reducer or SlangDecoder?

PDF Size Reducer ships an update every 8 days, and SlangDecoder every 2 months. Most recently, PDF Size Reducer was updated on October 24, 2026 and SlangDecoder on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*