Comparison

Deep Whois vs Domain Check

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

Domain Check

Instantly retrieve detailed WHOIS information for any website using real WHOIS servers. Check domain availability, view comprehensive details, and maintain a history of your queries. Supports all top-level domains.

Highlights
  • Real WHOIS server queries
  • Unlimited queries
  • All TLD support
  • Domain availability check
  • Detailed domain information
  • Query history
Features
Read full description

Professional Domain Intelligence Domain Check is a focused lookup and monitoring tool for people who work with domains every day. Check availability, ownership signals, DNS, SSL, email security, blacklist status, expiry risk, and portfolio history from one clean iPhone and iPad app. Use it for domain research, brand protection, client audits, acquisition checks, technical reviews, expiry tracking, and ongoing watchlist monitoring. Key Features - Single domain lookup for fast checks - Batch checking for pasted, imported, or saved domain lists - WHOIS availability status: Available, Registered, or Unclear - Confidence level and human-readable result explanation - Registrar and expiry details when available - WHOIS privacy and redaction signal detection - DNS-over-HTTPS lookup with Cloudflare to Google fallback - DNS records for A, AAAA, MX, NS, TXT, and CNAME - Nameserver change detection between saved checks - SSL validation using the system HTTPS trust check - Email security review for MX, SPF, DMARC, DMARC policy, and DKIM hints - DNSBL blacklist checks for discovered IPv4 records - Domain health score, risk labels, freshness warnings, and expiry badges - Domain suggestions, typo variants, and brand-protection variants - Saved watchlist for favorite and alerted domains - Expiry dashboard for important domains - Grouped batch history with expandable batch runs - Searchable history with filters for status, saved domains, expiry, alerts, blacklist, and SSL issues - Compact or detailed history row density - Multi-select history actions for compare, export, favorite, tag, recheck, and delete - Side-by-side domain comparison with highlighted technical values - Per-domain notes and tags - Saved reusable batch lists with searchable picker - Batch templates for startup names, brand protection, and client-domain lists - Batch pause, resume, stop, progress overlay, and rate-limit warning - Native PDF export for single results and full history - CSV export for history, notes, and tags - CSV and text import for domain lists - Copy actions for domain, summary, WHOIS, DNS records, and key result values - Configurable preferred registrar URL - Local expiry reminders and availability alerts - iCloud key-value mirroring when available - App Shortcut and widget target support - Clean cyber-tech dark interface built for iPhone and iPad Domain Check keeps domain intelligence practical: quick enough for one lookup, structured enough for professional batch workflows.

Screenshots

Deep Whois4 screens
Domain Check4 screens

Verdict

The call

The clearest difference is review sentiment: Deep Whois at 85% against Domain Check's 0%. Deep Whois also leads on rating (4.5 vs 1.0) and ratings volume (172 vs 1). Domain Check's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, 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

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 Domain Check 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

Deep Whois holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Deep Whois has 172 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Deep Whois's written reviews are positive against 0% of Domain Check's.

UpkeepUpdate frequency

Deep Whois ships an update every 4 months, Domain Check every 14 months. Both last shipped on October 23, 2026.

Scorecard7 real differences · 3 level
Deep Whois versus Domain Check: the parameters behind the verdict, then further details
ParameterDeep WhoisDomain Check
PriceFreeFree
Rating4.5 (172 ratings) — better1.0 (1 ratings)
Positive reviews85.4% of reviews — better0.0% of reviews
Number of ratings172 — better1
Update frequencyEvery 4 months — betterEvery 14 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better17.0
Further details — not scored
Size46 MB6 MB
Age rating4+4+
DeveloperPavel AhafonauGeekme

Customer experience

Deep Whois

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

Domain Check

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Domain Check

Not enough reviews yet to summarise bugs or requests.

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

Domain Check

One-time1
  • Remove Advertising$0.99

Questions

Is Deep Whois free?
Deep Whois is free to download, with in-app purchases available.
Is Domain Check free?
Domain Check is free to download, with in-app purchases available.
Which has better reviews, Deep Whois or Domain Check?
Deep Whois is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while Domain Check averages 1.0 from 1 ratings.
Do Deep Whois or Domain Check have ads?
Deep Whois shows ads; Domain Check does not.
Which is updated more often, Deep Whois or Domain Check?
Deep Whois ships an update every 4 months, and Domain Check every 14 months. Most recently, Deep Whois was updated on October 23, 2026 and Domain Check on October 23, 2026.

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