# Smart Clean vs PDF Flow

The clearest difference is in-app purchases: PDF Flow at none against Smart Clean's 6. Smart Clean's advantage is ads (none vs shown) and rating (4.1 vs 3.7). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Clean sells 6 in-app purchases, starting at $7.99 per 7 days. PDF Flow asks for nothing beyond the download.

Smart Clean holds the better App Store score, 4.1 against 3.7. That said, the two scores are not equally well evidenced: Smart Clean has 31 ratings behind it against 3, so its average is the more settled of the two.

Smart Clean ships an update monthly, PDF Flow every 4 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Smart Clean | PDF Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (31 ratings)](https://appshunter.io/ios/app/smart-clean-phone-cleaner/id6749938280/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/pdf-flow-local-document-desk/id6775756549/reviews) |
| Number of ratings | **31** | 3 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 51 MB | 77 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Super Scanner](https://appshunter.io/developer/1809971108) | [Fuzhou Qingyue Network Technology Co., Ltd.](https://appshunter.io/developer/6771612144) |

## What reviewers say

### Smart Clean

[App page](https://appshunter.io/ios/app/smart-clean-phone-cleaner/id6749938280)

This app helps you manage your device's storage by cleaning up duplicate and similar files. It also offers features to compress videos and secure private photos and videos with password protection.

**Highlights:** Video compression, Secret photo folder, Duplicate and similar photo detection, Storage usage monitoring, Password protection for media

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $7.99 | per 7 days |
| Weekly VIP - 3 Days Free | $8.99 | per 7 days |
| Monthly VIP | $9.99 | per month |
| Yearly VIP - 3 Days Free | $39.99 | per year |
| Yearly VIP | $39.99 | per year |
| Lifetime VIP | $39.99 | one-time |


### PDF Flow

[App page](https://appshunter.io/ios/app/pdf-flow-local-document-desk/id6775756549)

This app is an offline PDF tool for creating, viewing, editing, and organizing PDF documents directly on your device. Generate PDFs from photos or text, edit pages, compress files, and manage your local library without needing an account or uploading your data.

**Highlights:** Create PDFs from photos, text, or blank pages, Edit PDF pages, insert or remove pages, Compress PDFs with adjustable strength, Organize files with categories and favorites, Offline file management and editing, Import and export via Files app and share sheet

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Clean free?

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

### Is PDF Flow free?

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

### Which has better reviews, Smart Clean or PDF Flow?

Smart Clean is rated higher. Smart Clean averages 4.1 out of 5 from 31 ratings, while PDF Flow averages 3.7 from 3 ratings.

### Do Smart Clean or PDF Flow have ads?

PDF Flow shows ads; Smart Clean does not.

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

Smart Clean ships an update monthly, and PDF Flow every 4 weeks. Most recently, Smart Clean was updated on November 5, 2026 and PDF Flow on November 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.*