Power PDF Pro vs Device Tester Pro
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.
Device Tester Pro
Monitor your device's core system components. Track memory, disk, CPU, network, and battery usage. Gain insights into your system's performance and health.
- Check RAM usage
- Monitor disk usage
- Track CPU usage
- View network activity
- Analyze battery status
- System information overview
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Device Tester Pro: A simple tool for hardware testing with lightweight diagnostic checks for key components. Key Features: • Hardware Test: → Test Camera, Bluetooth, Audio, Microphone, Keyboard Input, Sensors, and other hardware components. • System Info Tools: → View quick device details including RAM, CPU, storage, network, and battery status. • Utilities: → QR Code Generator: Create QR codes instantly from text or data. → Random Selection Tool: Make quick random choices or selections. → Clipboard Cleaner: Clear clipboard content with one tap. → Torch: Quickly turn on/off the flashlight and adjust brightness levels.
Screenshots
Verdict
The clearest difference is rating: Power PDF Pro at 4.8 against Device Tester Pro's 4.1. Device Tester Pro's advantage is update cadence (fortnightly vs every 3 months) and price ($1.99 vs $5.99). On ratings volume, 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 Device Tester Pro $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Power PDF Pro holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 304 and 475 respectively. Written reviews complicate that: 52% of Power PDF Pro's written reviews are positive against 64% of Device Tester Pro's, so the app with the better star average is not the one people write more warmly about.
Power PDF Pro ships an update every 3 months, Device Tester Pro fortnightly. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Power PDF Pro | Device Tester Pro |
|---|---|---|
| Price | $5.99 | $1.99 — better |
| Rating | 4.8 (304 ratings) — better | 4.1 (475 ratings) |
| Positive reviews | 52.2% of reviews | 64.2% of reviews — better |
| Number of ratings | 304 | 475 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ComcSoft Corporation | Phan Nhut |
Customer experience
Power PDF Pro
Device Tester Pro
Bugs and requests
Power PDF Pro
Not enough reviews yet to summarise bugs or requests.
Device Tester Pro
Reported bugs
3 issues- Scan function doesn't complete
- Processes list always shows zero
- Crashes on iPhone 15 Pro Max
Requested features
3 requests- Automatic memory cleaning
- Detailed process information
- Compatibility with newer iOS versions
In-app purchases
Power PDF Pro
No in-app purchases
Device Tester Pro
No in-app purchases
Questions
Is Power PDF Pro free?
Is Device Tester Pro free?
Which has better reviews, Power PDF Pro or Device Tester Pro?
Do Power PDF Pro or Device Tester Pro have ads?
Which is updated more often, Power PDF Pro or Device Tester Pro?
Other comparisons
