Comparison

Deep Whois vs Power PDF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Deep Whois

This app provides comprehensive WHOIS lookups for domains, IP addresses, and network ranges. It offers advanced features like historical data, change tracking, and notifications for domain expirations. Explore all domain zones and IP versions with seamless RDAP support.

Highlights
  • WHOIS lookup for domains, IPs, ASNs, and ENS
  • WHOIS history and change tracking
  • Domain expiration tracking with notifications
  • Supports all domain zones and IP versions (IPv4/IPv6)
  • Seamless RDAP support
  • Automatic WHOIS server selection
Features
Read full description

Deep Whois is the most complete and advanced Whois app with whois history, change and expiration tracking, notifications, color themes, RDAP and ENS. The tool lets you lookup info in ALL Whois databases for ALL hostnames, domains, TLDs, web sites, IDNs, IP addresses (both IPv4 and IPv6), IP network ranges, autonomous systems (ASNs, ISP IDs), and Ethereum Name Service (ENS) domains. Deep Whois works out of the box and finds ownership, country and more info about everything with no need to mess with complex options and server selection. FEATURES - Whois domains, IP addresses, ranges, IDNs and ASNs - Supports ALL domain zones, TLDs, IDNs known to date - Supports IPv4 and IPv6 addresses and networks - Support ARIN, RIPE, APNIC, LACNIC, AFRINIC and referral servers - Seamless RDAP support for domains where Whois is no longer available - Automatic selection of Whois servers - Trace across a chain of Whois servers (add "+trace" into query) - Digging Whois records from referrals - Result history for all lookups - Group results into multiple histories - E-mail Whois results PRO FEATURES - Whois history - Whois change and expiration tracking (for any domain) - Notifications - Color themes for Whois display - ENS: Lookup and track Ethereum Name Service domains/address If you love Deep Whois, try Deep Whois Pro for 7 days free! Go back in time with historical whois, track domain expiration, whois data changes with notifications, and do more with Deep Whois Pro. At confirmation of the Deep Whois Pro purchase, payment will be charged to your iTunes account, and it will be charged for renewal within 24-hours before the end of the current period. Automatic renewal can be turned off at any time in your Account Settings after purchase. After the cancellation of the renewal, Deep Whois Pro will expire at the end of the current period. DEMO VIDEOS http://j.mp/deepwhois_vids If you have any questions or comments, feel free to contact us at https://happymagenta.com/deepwhois/support.html Privacy Policy: https://www.unblip.com/tmp/privacy_and_terms/privacy.html Terms of Use: https://www.unblip.com/tmp/privacy_and_terms/terms.html

About

Power PDF

Create, modify, and secure PDF documents on your mobile device. Convert various file types and photos to PDF, scan documents with your camera, and manage files with a built-in file manager. View, annotate, and search within PDF documents with ease.

Highlights
  • Create PDFs from DOC, XLS, PPT, TXT, and photos
  • Scan to PDF using camera
  • Combine, split, delete, and reorder PDF pages
  • Add password protection to PDFs
  • View, search, and annotate PDFs
  • File management: rename, delete, move, create folders
  • Import files from Camera Roll, Email, and other apps
Features
Read full description

Power PDF is a powerful tool to create, secure and view PDF documents on iPad/iPhone. Power PDF 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 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 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 also has a File Manager, which supports the following features: - Import files from your Camera Roll, Email or another App through “Open In”. - 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. With its simple interfaces, Power PDF provides the easiest way to manage PDF documents on iPhone and iPad. If you have more questions, please visit: http://www.comcsoft.com/Portfolio/our_apps/PowerPDF/PowerPDF_overview.php.

Screenshots

Deep Whois4 screens
Power PDF4 screens

Verdict

The call

The clearest difference is rating: Power PDF at 4.8 against Deep Whois's 4.5. Power PDF also leads on ratings volume (1K vs 172). Deep Whois's advantage is review sentiment (85% vs 65%) and iOS requirement (13.4 vs 16.6). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Deep Whois sells 4 in-app purchases, starting at $1.99 per 7 days and Power PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Power PDF holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Power PDF has 1K ratings behind it against 172, so its average is the more settled of the two. Written reviews complicate that: 85% of Deep Whois's written reviews are positive against 65% of Power PDF's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Deep Whois ships an update every 4 months, Power PDF every 3 months. Both last shipped on October 23, 2026.

Scorecard4 real differences · 6 level
Deep Whois versus Power PDF: the parameters behind the verdict, then further details
ParameterDeep WhoisPower PDF
PriceFreeFree
Rating4.5 (172 ratings)4.8 (1K ratings) — better
Positive reviews85.4% of reviews — better65.0% of reviews
Number of ratings1721K — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better16.6
Further details — not scored
Size46 MB75 MB
Age rating4+4+
DeveloperPavel AhafonauComcSoft Corporation

Customer experience

Deep Whois

All ratings172 ratings
Positive86.6%
Neutral4.1%
Negative9.3%
Written reviews247 reviews
Positive85.4%
Neutral2.4%
Negative12.1%

Power PDF

All ratings1,006 ratings
Positive95.0%
Neutral2.2%
Negative2.8%
Written reviews266 reviews
Positive65.0%
Neutral6.4%
Negative28.6%

User reviews

Deep Whois

From 172 App Store ratings

What we love

  • 🚀 Fast and efficient
  • 👍 Simple and intuitive interface
  • 🔒 Provides detailed domain/IP information
  • 💡 Useful for troubleshooting network issues
  • 👍 Convenient for on-the-go use

Room to improve

  • 🐛 Occasional bugs and crashes
  • 🔍 Limited functionality compared to desktop tools
  • 💰 Paid version required for full features
  • 🔑 Privacy concerns with some user data

Power PDF

From 1K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Handles all types of documents easily
  • 💡 Powerful features in free version
  • 👍 Quick and easy to convert photos to PDF
  • 🚀 Works well for splitting and merging PDFs

Room to improve

  • 🐛 Full of annoying pop-ups and ads
  • 🔒 Requires paid upgrade to access certain features
  • 🐛 Buggy, crashes frequently
  • 🐛 Can't open or download files in free version
  • 🐛 Can't rearrange pages in PDF without paid upgrade

Bugs and requests

Deep Whois

Reported bugs

3 issues
  • Incorrect location/ISP information for some IP addresses
  • Compatibility issues with newer iOS versions
  • Unreliable performance on older devices

Requested features

4 requests
  • Expand search capabilities (e.g., reverse IP lookup, domain history)
  • Add support for more domain registrars and TLDs
  • Implement dark mode and customization options
  • Improve integration with other network/security tools

Power PDF

Reported bugs

4 issues
  • Landscape-only mode
  • Text recognition produces gibberish
  • Inability to undo annotations
  • Issues with converting photos to PDF

Requested features

4 requests
  • Auto-rotate PDF pages to fit screen
  • Batch conversion of photos to PDF
  • Integration with cloud storage services like Dropbox
  • Ability to edit and annotate PDF files

In-app purchases

4 purchases

Deep Whois

Subscriptions3
  • Deep Whois Pro (1 Week)$1.997 Days
  • Deep Whois Pro (1 Month)3 Days trial$3.991 Month
  • Deep Whois Pro (1 Year)7 Days trial$29.991 Year
One-time1
  • Deep Whois Plus (Lifetime)$0.99
1 purchases

Power PDF

One-time1
  • Premium$4.99

Questions

Is Deep Whois free?
Deep Whois is free to download, with in-app purchases available.
Is Power PDF free?
Power PDF is free to download, with in-app purchases available.
Which has better reviews, Deep Whois or Power PDF?
Power PDF is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while Power PDF averages 4.8 from 1K ratings.
Do Deep Whois or Power PDF have ads?
Both Deep Whois and Power PDF show ads.
Which is updated more often, Deep Whois or Power PDF?
Deep Whois ships an update every 4 months, and Power PDF every 3 months. Most recently, Deep Whois was updated on October 23, 2026 and Power PDF on October 23, 2026.

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