Power PDF Pro vs Atom Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power PDF Pro
Create, modify, and view PDF documents with advanced features for business professionals. Includes cloud storage integration, file conversion, editing tools, and robust file management.
- 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
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Power PDF Pro is the Pro Version of Power PDF, a powerful tool to create, modify and view PDF documents on iPad/iPhone. Besides all the features available on Power PDF, the Pro Version has more features, which are essential to business and professional users, including Dropbox, Box and Google Drive access. Power PDF Pro lets you create PDF documents on your iPhone/iPad with ease. It supports: - Create PDF documents from many file types, including: DOC, XLS, PPT, TXT, RTF, XML, HTML and all text files. - Convert photos to a PDF document. - Scan to a PDF document using your Camera. Power PDF Pro lets you modify PDF documents on your iPhone/iPad with ease. It supports: - Combine PDF documents. - Split a PDF document into two or more documents. - Delete pages in a PDF document. - Re-arrange pages in a PDF document. - Add password protection to a PDF document. Power PDF Pro lets you view PDF documents with ease. It supports: - View PDF documents in thumbnail or full screen modes. - Extract text from a PDF document. - Add bookmarks on a PDF document. - Search within a PDF document. - Fast Navigate within a PDF document. - Zooms in/Zooms out on a PDF document. - Annotate in a PDF document. Power PDF Pro also has a File Manager, which supports the following features: - Import files from your Camera Roll, Email or another App. - Manage Files including: rename, delete, move, create folder and sort. - Search file name in Local Files and Camera Roll. - Open many document types, including: DOC, EXCEL, PPT, TXT, image files, and audio files. - Download from/upload to Dropbox, Box and GoogleDrive. With its simple interfaces, Power PDF Pro provides the easiest way to manage PDF documents on iPhone and iPad.
Atom Calculator
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The atom calculator is a tool for calculating the atomic number and the mass number based on numbers of atom components - protons, neutrons, and electrons (or vice versa). In addition, you can define the charge of ions with known numbers of protons and electrons.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Power PDF Pro | Atom Calculator |
|---|---|---|
| Price | $5.99 | $2.99 — better |
| Rating | 4.8 (300 ratings) — better | — |
| Positive reviews | 52.2% of reviews | — |
| Number of ratings | 300 — better | — |
| Update frequency | Every 3 months — better | Every 35 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | ComcSoft Corporation | Gorasiya Vishal Nanjibhai |
In-app purchases
Power PDF Pro
No in-app purchases
Atom Calculator
No in-app purchases
Questions
Is Power PDF Pro free?
Is Atom Calculator free?
Do Power PDF Pro or Atom Calculator have ads?
Which is updated more often, Power PDF Pro or Atom Calculator?
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