# Atom PDF vs Storm Cleaner

The clearest difference is in-app purchases: Atom PDF at none against Storm Cleaner's 4. Atom PDF also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Storm Cleaner's advantage is update cadence (every 9 days vs every 2 months) and ratings volume (13 vs 4). On price, rating and device support there is nothing between them.

Both are free to download. Storm Cleaner sells 4 in-app purchases, starting at $4.99 per 7 days. Atom PDF asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Atom PDF against 4.8 for Storm Cleaner. Both are backed by a comparable volume of ratings — 4 and 13 respectively.

Atom PDF ships an update every 2 months, Storm Cleaner every 9 days. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Atom PDF | Storm Cleaner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/atom-pdf-ocr-and-edit-document/id1663437816/reviews) | [4.8 (13 ratings)](https://appshunter.io/ios/app/storm-cleaner-clean-up-storage/id6748904407/reviews) |
| Number of ratings | 4 | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 71 MB | 32 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [BHIPSTER WORLD NETWORK TECH LIMITED](https://appshunter.io/developer/1657409447) | [Shenzhen Yayi E-commerce Co., Ltd.](https://appshunter.io/developer/1540230011) |

## What reviewers say

### Atom PDF

[App page](https://appshunter.io/ios/app/atom-pdf-ocr-and-edit-document/id1663437816)

This app streamlines document workflows with features like PDF creation from images, versatile editing tools, and AI-powered chat support. It offers curated templates for business and personal use, along with local PDF reading and document history management.

**Highlights:** Convert images to PDF, Merge, split, crop PDFs, Business and personal templates, AI chat assistant for PDF queries, Local PDF reading, Document history management

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

**In-app purchases:** none


### Storm Cleaner

[App page](https://appshunter.io/ios/app/storm-cleaner-clean-up-storage/id6748904407)

This app uses AI to find and remove duplicate photos, videos, and screenshots. It also helps organize contacts and calendars, freeing up valuable storage space on your device.

**Highlights:** Smart duplicate photo cleanup, Duplicate video detection, Screenshot organization, Contact merging, Calendar event deletion, AI-powered scanning, On-device processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Only $0.99 for the first week. | $4.99 | per 7 days |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Annual subscription | $14.99 | per year |


## Frequently asked questions

### Is Atom PDF free?

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

### Is Storm Cleaner free?

Storm Cleaner is free to download, with in-app purchases available.

### Which has better reviews, Atom PDF or Storm Cleaner?

Atom PDF and Storm Cleaner are both rated 4.8 out of 5 on the App Store, from 4 and 13 ratings respectively.

### Do Atom PDF or Storm Cleaner have ads?

Storm Cleaner shows ads; Atom PDF does not.

### Which is updated more often, Atom PDF or Storm Cleaner?

Atom PDF ships an update every 2 months, and Storm Cleaner every 9 days. Most recently, Atom PDF was updated on September 20, 2026 and Storm Cleaner on September 19, 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.*