# PDF Reader vs AI Clean

The clearest difference is rating: PDF Reader at 4.6 against AI Clean's 4.0. PDF Reader also leads on in-app purchases (none vs 2) and update cadence (every 6 days vs monthly). AI Clean's advantage is chart position (#199 vs unranked). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. AI Clean sells 2 in-app purchases, starting at $5.99 per 7 days. PDF Reader asks for nothing beyond the download.

PDF Reader holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 79 and 140 respectively. Written reviews point the same way: 50% of PDF Reader's written reviews are positive against 33% of AI Clean's.

PDF Reader ships an update every 6 days, AI Clean monthly. Both last shipped on October 30, 2026.

## The numbers

| Metric | PDF Reader | AI Clean |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (79 ratings)](https://appshunter.io/ios/app/pdf-reader-viewer/id6746119431/reviews)** | [4.0 (140 ratings)](https://appshunter.io/ios/app/ai-clean-phone-sweeper/id6751800020/reviews) |
| Number of ratings | 79 | **140** |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Best chart rank | — | **#199** |
| Size | 116 MB | 202 MB |
| Requires iOS | 16 | **15.6** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [All About Housing LLC](https://appshunter.io/developer/1773925650) | [Fuzhou Jiange Technology Co., Ltd.](https://appshunter.io/developer/1821346905) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-viewer/id6746119431)

This app provides a privacy-focused way to view, organize, and manage PDF files on your device. It offers tools for merging, splitting, securing documents, and converting images to PDF, all processed locally for enhanced data safety.

**Highlights:** View and organize PDF files, Merge and split PDFs, Secure documents with passwords, Convert images to PDF, Built-in document scanner, Local data processing for privacy

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

**In-app purchases:** none


### AI Clean

[App page](https://appshunter.io/ios/app/ai-clean-phone-sweeper/id6751800020)

**Currently charting:** #199 Top Free · Utilities (US App Store)

This app helps iPhone users declutter their devices by intelligently scanning and removing duplicate photos and contacts. It also organizes your calendar and provides quick access to device status information like storage and battery health.

**Highlights:** Duplicate photo removal, Duplicate contact organization, Calendar event cleanup, Device status overview, Built-in flashlight

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Clean Ad-Free | $5.99 | per 7 days |
| AI Clean Ad-Free | $29.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is AI Clean free?

AI Clean is free to download, with in-app purchases available.

### Which has better reviews, PDF Reader or AI Clean?

PDF Reader is rated higher. PDF Reader averages 4.6 out of 5 from 79 ratings, while AI Clean averages 4.0 from 140 ratings.

### Do PDF Reader or AI Clean have ads?

Both PDF Reader and AI Clean show ads.

### Which is updated more often, PDF Reader or AI Clean?

PDF Reader ships an update every 6 days, and AI Clean monthly. Most recently, PDF Reader was updated on October 30, 2026 and AI Clean 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.*