# Echo Feedback App vs Compress PDF reduce pdf size

The clearest difference is in-app purchases: Echo Feedback App at none against Compress PDF reduce pdf size's 4. Echo Feedback App also leads on iOS requirement (13.4 vs 15.0). Compress PDF reduce pdf size's advantage is device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Compress PDF reduce pdf size sells 4 in-app purchases, starting at $1.99 per 7 days. Echo Feedback App asks for nothing beyond the download.

Echo Feedback App ships an update every 5 weeks, Compress PDF reduce pdf size every 3 weeks. The most recent releases landed on September 13, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Echo Feedback App | Compress PDF reduce pdf size |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (25 ratings)](https://appshunter.io/ios/app/compress-pdf-reduce-pdf-size/id6478926009/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 20 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Effect Studios](https://appshunter.io/developer/1464134973) | [Nouhayla Moustaine](https://appshunter.io/developer/1721912925) |

## What reviewers say

### Echo Feedback App

[App page](https://appshunter.io/ios/app/echo-feedback-app/id1487196374)

**Features:** macOS Compatibility

**In-app purchases:** none


### Compress PDF reduce pdf size

[App page](https://appshunter.io/ios/app/compress-pdf-reduce-pdf-size/id6478926009)

Easily reduce the size of your PDF files by up to 95% with multiple compression levels. Share your smaller PDF documents quickly and efficiently. Offers a clean and user-friendly interface for fast processing.

**Highlights:** Compress PDFs up to 95%, Multiple compression levels, Fast and easy to use, Share compressed files, Nice design

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $1.99 | per 7 days |
| Month | $3.99 | per month |
| Year | $19.99 | per year |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Echo Feedback App free?

Echo Feedback App is free to download, with no in-app purchases.

### Is Compress PDF reduce pdf size free?

Compress PDF reduce pdf size is free to download, with in-app purchases available.

### Do Echo Feedback App or Compress PDF reduce pdf size have ads?

Neither Echo Feedback App nor Compress PDF reduce pdf size shows ads.

### Which is updated more often, Echo Feedback App or Compress PDF reduce pdf size?

Echo Feedback App ships an update every 5 weeks, and Compress PDF reduce pdf size every 3 weeks. Most recently, Echo Feedback App was updated on September 13, 2026 and Compress PDF reduce pdf size on September 6, 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.*