Best Domain Lookup Apps

0+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated June 2026

Whether you're new to domain lookup or looking for an upgrade, our curated collection of 0+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Domain Lookup

NSLookup#3

NSLookup by Dayana Networks Ltd

Domain's DNS records
Worth Considering
🔧 Utilities
3.0(29 ratings)
FreeAdsIn-App Purchases
NSLookup screenshot 1
NSLookup screenshot 2
NSLookup screenshot 3
NSLookup screenshot 4
NSLookup screenshot 5

This utility app retrieves detailed DNS information for any domain. It helps users find IP addresses, view name servers, and query specific DNS records like NS and CNAME. It can also force authoritative responses from main DNS servers.

More Domain Lookup apps to explore

4
DNS Kit - Domain & Email Check
DNS Kit - Domain & Email Check
DNS Kit - Domain & Email Check
DNS Lookup & Propagation Tool
Free
🔧 Utilities
(0)
5
DomainDig
DomainDig
DomainDig
DNS lookup & SSL certificates
Free

Inspect domains and servers with comprehensive diagnostics. Quickly check DNS records, SSL certificates, email security, HTTP headers, and network reachability. Includes IP geolocation and a history of your lookups.

DNS record lookup (A, MX, NS, TXT, CNAME)SSL/TLS certificate inspectionEmail security record parsing (SPF, DMARC, DKIM)
🔧 Utilities
(2)
free
6
DomainQuery
DomainQuery
DomainQuery
DNS, RDAP & WHOIS Lookup
Free

Instantly check DNS records, RDAP, and WHOIS data for any domain. This utility app provides comprehensive domain information directly on your device.

DNS record lookupRDAP data viewingWHOIS data retrieval
🔧 Utilities
(1)
free
7
BR Domain Lookup
BR Domain Lookup
BR Domain Lookup
Lookup .BR domains status
Free
🔧 Utilities
(0)
8
Namecheap
Namecheap
Namecheap
by Namecheap, Inc
Free

Manage your domain names and hosting services on the go. This app allows you to instantly search, register, and renew domains, as well as manage DNS settings and auto-renewal preferences. Keep your online presence secure and up-to-date with easy access to your account.

Instant domain search, registration, and renewalManage DNS settingsManage WhoisGuard settings
💼 Business
(2.5K)
free
9
TruthFinder Search
TruthFinder Search
TruthFinder Search
Find Public Records
Free

Access public records and perform reverse phone number lookups quickly. Identify unknown callers, avoid scams, and uncover information on the go. This app provides a convenient way to search for details using just a phone number.

Reverse phone number lookupPublic records searchIdentify unknown callers
💼 Business
(6.2K)
free with in-app purchases
10
Whitepages: People Search
Whitepages: People Search
Whitepages: People Search
Phone Number & Address Finder
Free

Access accurate contact information, identify unknown callers, and find property details. This app offers a comprehensive directory and reverse lookup service for people and businesses. It also provides neighborhood market reports and tools to manage your contacts.

People SearchReverse Phone LookupReverse Email Lookup
🔍 Reference
(162K)
free with in-app purchases
11
IONOS
IONOS
IONOS
Keep track of your website
Free

Manage your website and IONOS products from anywhere. Register domains, edit your website content, track performance, and manage invoices. Secure your account with 2-Step Verification and access help resources.

Manage IONOS productsRegister and manage domainsEdit MyWebsite content
📊 Productivity
(14K)
free
12
Phone Reveal
Phone Reveal
Phone Reveal
Reverse Phone Number Lookup
Free

Identify unknown callers by performing reverse phone number lookups. Enter a number to find the associated name or location. Supports US/CA numbers and allows users to report spam to improve accuracy.

Reverse phone number lookupIdentify unknown callersSupports cell and land lines
🔧 Utilities
(1.9K)
ad-supported
13
Fast Domain Search
Fast Domain Search
Fast Domain Search
by Aananta Co
Free
🛠️ Developer Tools
(0)
14
NSLookup Plus
NSLookup Plus
NSLookup Plus
Domain's DNS records
$1.99

This utility app retrieves DNS information for any domain, including IP addresses and name servers. It allows users to view public DNS records and query NS and CNAME records, with the option to force authoritative responses from main DNS servers.

Retrieve domain DNS informationFind target IP address of a domainView name servers for a domain
🔧 Utilities
(6)
paid
15
Caller-ID
Caller-ID
Caller-ID
Reverse Phone Lookup
Free

Identify unknown callers and find out who owns a phone number. This app offers a global reverse lookup for over 1 billion numbers, with features like geolocation and social media directory integration. It also allows users to report and comment on spam or prank callers.

Global reverse phone lookupGeolocation by area codeSocial media directory
🔍 Reference
(19K)
free with in-app purchases
16
SMTP Lookup
SMTP Lookup
SMTP Lookup
SMTP lookup for any domain
Free
🔧 Utilities
(0)
17
Number Lookup: Who is calling?
Number Lookup: Who is calling?
Number Lookup: Who is calling?
Reverse phone number lookup
Free

Identify unknown callers and screen potentially threatening numbers with a vast global database. Quickly find personal details, detect junk calls, and add numbers to your contacts anonymously. Unlimited queries are available without registration.

Query number informationIdentify junk numbersAnonymous search
🔧 Utilities
(478)
free with in-app purchases
18
NSLookup Z-Fast DNS Query Tool
NSLookup Z-Fast DNS Query Tool
NSLookup Z-Fast DNS Query Tool
Secure DNS Lookup,Record Check
Free

This tool allows for fast and secure DNS record lookups, supporting encrypted queries and a variety of popular DNS servers. Users can also configure custom DNS servers for complete control over their network analysis.

Query DNS records (A, AAAA, CNAME, TXT, etc.)Support for DoH & DoT encrypted lookupsIncludes popular DNS servers (Google, Cloudflare)
🛠️ Developer Tools
(5)
free
19
Whois+ Domain & IP Search
Whois+ Domain & IP Search
Whois+ Domain & IP Search
Lookup and Check Whois Data
Free

This app provides advanced WHOIS lookups for domain names and IP addresses. It supports over 1000 domain extensions, including new TLDs, and retrieves detailed information from thousands of databases.

WHOIS Domains and IP addressesSupports all classic TLDsSupports all new TLDs
🔧 Utilities
(147)
free with in-app purchases
20
NextDNS
NextDNS
NextDNS
The next-generation DNS
Free

Encrypt all your DNS queries across all networks with this app. It leverages native iOS settings to bring your custom blocking policies and traffic analytics directly to your phone. Easily set up your configuration ID to enhance your online privacy and security.

Encrypts all DNS queriesUses native iOS Encrypted DNS settingsApply custom blocking policies
🔧 Utilities
(1.1K)
free