# Smart Cleaner vs PDF Reader

The clearest difference is in-app purchases: Smart Cleaner at none against PDF Reader's 1. Smart Cleaner also leads on ratings volume (448 vs 93). PDF Reader's advantage is review sentiment (50% vs 33%) and chart position (#196 vs unranked). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. PDF Reader sells 1 in-app purchase, starting at $14.99 per 7 days. Smart Cleaner asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for Smart Cleaner against 4.3 for PDF Reader. Both are backed by a comparable volume of ratings — 448 and 93 respectively. Written reviews are what separate them: 33% of Smart Cleaner's written reviews are positive against 50% of PDF Reader's.

Smart Cleaner ships an update every 2 weeks, PDF Reader every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Smart Cleaner | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (448 ratings)](https://appshunter.io/ios/app/smart-cleaner-free-storage/id6757386468/reviews) | **[4.3 (93 ratings)](https://appshunter.io/ios/app/pdf-reader-edit-and-ocr-scan/id6774545766/reviews)** |
| Number of ratings | **448** | 93 |
| Positive reviews | 33.3% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#196** |
| Size | 14 MB | 21 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuenhe Innovations Co., Ltd.](https://appshunter.io/developer/1794909944) | [Duc Duong Tran](https://appshunter.io/developer/1580090879) |

## What reviewers say

### Smart Cleaner

[App page](https://appshunter.io/ios/app/smart-cleaner-free-storage/id6757386468)

This utility app helps declutter your phone by finding and removing duplicate photos, similar images, large videos, and old calendar events. It also offers tools to merge duplicate contacts and monitor ambient noise levels.

**Highlights:** Duplicate photo removal, Similar image detection, Video compression, Duplicate contact merging, Calendar event cleanup, Noise level monitoring

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

**In-app purchases:** none


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-edit-and-ocr-scan/id6774545766)

**Currently charting:** #196 Top Free · Productivity (US App Store)

Easily scan, read, edit, and manage PDF documents on your iPhone and iPad. Convert images to PDF, extract text with OCR, and sign your documents. Organize files with merging, splitting, and password protection.

**Highlights:** Scan documents with camera, Convert photos to PDF, Extract text with OCR, Edit and annotate PDFs, Sign documents, Merge and split PDFs, Password protection

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $14.99 | per 7 days |


## Frequently asked questions

### Is Smart Cleaner free?

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

### Is PDF Reader free?

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

### Which has better reviews, Smart Cleaner or PDF Reader?

PDF Reader is rated higher. Smart Cleaner averages 4.2 out of 5 from 448 ratings, while PDF Reader averages 4.3 from 93 ratings.

### Do Smart Cleaner or PDF Reader have ads?

Both Smart Cleaner and PDF Reader show ads.

### Which is updated more often, Smart Cleaner or PDF Reader?

Smart Cleaner ships an update every 2 weeks, and PDF Reader every 3 weeks. Most recently, Smart Cleaner was updated on October 25, 2026 and PDF Reader on October 25, 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.*