# PDF Files Compressor vs IoTEmeter

The clearest difference is ads: IoTEmeter at none against PDF Files Compressor's shown. IoTEmeter also leads on iOS requirement (13.0 vs 16.0). PDF Files Compressor's advantage is update cadence (every 9 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

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

PDF Files Compressor ships an update every 9 days, IoTEmeter every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PDF Files Compressor | IoTEmeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/pdf-files-compressor/id6453467783/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 42 MB | 38 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SOFIT Consultancy (Private) Limited](https://appshunter.io/developer/1110677088) | [Smart Charging Technologies](https://appshunter.io/developer/1505114112) |

## What reviewers say

### PDF Files Compressor

[App page](https://appshunter.io/ios/app/pdf-files-compressor/id6453467783)

This utility app efficiently reduces the size of various file types, including audio, video, images, and documents. It allows for both compression and decompression, making it easier to store and share files without significant quality loss. The interface is designed for ease of use by all users.

**Highlights:** Audio compression, Video compression, Image compression, Document compression, File decompression, Direct sharing and downloading, User-friendly interface

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

**In-app purchases:** none


### IoTEmeter

[App page](https://appshunter.io/ios/app/iotemeter/id6463869596)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Files Compressor free?

PDF Files Compressor is free to download, with no in-app purchases.

### Is IoTEmeter free?

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

### Do PDF Files Compressor or IoTEmeter have ads?

PDF Files Compressor shows ads; IoTEmeter does not.

### Which is updated more often, PDF Files Compressor or IoTEmeter?

PDF Files Compressor ships an update every 9 days, and IoTEmeter every 3 weeks. Most recently, PDF Files Compressor was updated on November 3, 2026 and IoTEmeter 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.*