# Power PDF Pro vs Atom Calculator

The clearest difference is update cadence: Power PDF Pro at every 3 months against Atom Calculator's every 35 months. Atom Calculator's advantage is price ($2.99 vs $5.99) and iOS requirement (12.0 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Power PDF Pro costs $5.99 and Atom Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Power PDF Pro ships an update every 3 months, Atom Calculator every 35 months. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Power PDF Pro | Atom Calculator |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Rating | **[4.8 (300 ratings)](https://appshunter.io/ios/app/power-pdf-pro/id592358758/reviews)** | — |
| Number of ratings | **300** | — |
| Positive reviews | 52.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 35 months |
| Monetization | Paid | — |
| Size | 56 MB | 13 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ComcSoft Corporation](https://appshunter.io/developer/413971334) | [Gorasiya Vishal Nanjibhai](https://appshunter.io/developer/1287086933) |

## What reviewers say

### Power PDF Pro

[App page](https://appshunter.io/ios/app/power-pdf-pro/id592358758)

Create, modify, and view PDF documents with advanced features for business professionals. Includes cloud storage integration, file conversion, editing tools, and robust file management.

**Highlights:** Create PDFs from various file types, Convert photos and scans to PDF, Combine, split, and reorder PDF pages, Add password protection, Cloud storage integration (Dropbox, Box, Google Drive), File management and organization, Annotate and bookmark PDFs

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

**In-app purchases:** none


### Atom Calculator

[App page](https://appshunter.io/ios/app/atom-calculator/id1457529377)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Power PDF Pro free?

Power PDF Pro costs $5.99, with no in-app purchases.

### Is Atom Calculator free?

Atom Calculator costs $2.99, with no in-app purchases.

### Do Power PDF Pro or Atom Calculator have ads?

Neither Power PDF Pro nor Atom Calculator shows ads.

### Which is updated more often, Power PDF Pro or Atom Calculator?

Power PDF Pro ships an update every 3 months, and Atom Calculator every 35 months. Most recently, Power PDF Pro was updated on October 14, 2026 and Atom Calculator on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*