# Atom PDF vs Smart PDF

The clearest difference is rating: Atom PDF at 4.8 against Smart PDF's 4.1. Smart PDF's advantage is update cadence (weekly vs every 2 months) and ratings volume (1.2K vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atom PDF holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Smart PDF has 1.2K ratings behind it against 4, so its average is the more settled of the two.

Atom PDF ships an update every 2 months, Smart PDF weekly. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Atom PDF | Smart PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/atom-pdf-ocr-and-edit-document/id1663437816/reviews)** | [4.1 (1.2K ratings)](https://appshunter.io/ios/app/smart-pdf/id6744004415/reviews) |
| Number of ratings | 4 | **1.2K** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 71 MB | 34 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [BHIPSTER WORLD NETWORK TECH LIMITED](https://appshunter.io/developer/1657409447) | [ORBITAL TECH PTE. LTD.](https://appshunter.io/developer/1705364538) |

## 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


### Smart PDF

[App page](https://appshunter.io/ios/app/smart-pdf/id6744004415)

Easily manage and process PDF files with this powerful tool. Convert PDFs to images, create PDFs from images, and merge multiple documents seamlessly. Streamline your workflow and enhance productivity with its intuitive interface.

**Highlights:** Convert PDFs to images, Transform images into PDFs, Merge multiple PDF files, Intuitive interface, Boost productivity

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

**In-app purchases:** none


## Frequently asked questions

### Is Atom PDF free?

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

### Is Smart PDF free?

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

### Which has better reviews, Atom PDF or Smart PDF?

Atom PDF is rated higher. Atom PDF averages 4.8 out of 5 from 4 ratings, while Smart PDF averages 4.1 from 1.2K ratings.

### Do Atom PDF or Smart PDF have ads?

Neither Atom PDF nor Smart PDF shows ads.

### Which is updated more often, Atom PDF or Smart PDF?

Atom PDF ships an update every 2 months, and Smart PDF weekly. Most recently, Atom PDF was updated on September 20, 2026 and Smart PDF on September 21, 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.*