# AI Clean Flow vs PDF Tools

The clearest difference is rating: PDF Tools at 5.0 against AI Clean Flow's 4.4. PDF Tools also leads on update cadence (weekly vs every 2 weeks). AI Clean Flow's advantage is ratings volume (140 vs 9). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. AI Clean Flow sells 13 in-app purchases, starting at $7.99 per 7 days and PDF Tools sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Tools holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AI Clean Flow has 140 ratings behind it against 9, so its average is the more settled of the two.

AI Clean Flow ships an update every 2 weeks, PDF Tools weekly. The most recent releases landed on September 23, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | AI Clean Flow | PDF Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (140 ratings)](https://appshunter.io/ios/app/ai-clean-flow/id6744596175/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pdf-tools-read-and-edit/id6745811413/reviews)** |
| Number of ratings | **140** | 9 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 194 MB | 96 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [林知 郭](https://appshunter.io/developer/1716211027) | [Shilong Lu](https://appshunter.io/developer/1185413008) |

## What reviewers say

### AI Clean Flow

[App page](https://appshunter.io/ios/app/ai-clean-flow/id6744596175)

This app helps declutter your photo gallery by identifying and removing unwanted screenshots, blurry images, and duplicates. It also offers system information about your photo storage and can repair broken photos to HD quality using AI, freeing up valuable space on your device.

**Highlights:** Remove duplicate photos, Remove oversized photos, Remove poor quality photos/videos, Repair broken photos to HD, View system photo gallery information, Free up storage space

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Sub | $7.99 | per 7 days |
| Weekly Sub | $7.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Weekly VIP | $14.99 | per 7 days |
| AI Clean Flow VIP | $23.99 | per year |
| Yearly VIP | $29.99 | per year |
| Yearly VIP | $34.99 | per year |
| Annual subscription | $39.99 | per year |
| Yearly VIP | $49.99 | per year |
| Yearly VIP | $59.99 | per year |
| Lifetime use | $34.99 | one-time |


### PDF Tools

[App page](https://appshunter.io/ios/app/pdf-tools-read-and-edit/id6745811413)

Edit, convert, and manage PDF files with features like OCR scanning, electronic signatures, and file merging. This tool allows for local processing without requiring a login, ensuring privacy and security for your documents.

**Highlights:** PDF to Word/Excel/TXT conversion, OCR scanning, Electronic signature, Merge and split PDFs, File encryption, Highlight and doodle on PDFs

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $29.99 | per year |
| Permanent Member | $3.99 | one-time |


## Frequently asked questions

### Is AI Clean Flow free?

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

### Is PDF Tools free?

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

### Which has better reviews, AI Clean Flow or PDF Tools?

PDF Tools is rated higher. AI Clean Flow averages 4.4 out of 5 from 140 ratings, while PDF Tools averages 5.0 from 9 ratings.

### Do AI Clean Flow or PDF Tools have ads?

Both AI Clean Flow and PDF Tools show ads.

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

AI Clean Flow ships an update every 2 weeks, and PDF Tools weekly. Most recently, AI Clean Flow was updated on September 23, 2026 and PDF Tools on July 5, 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.*