Comparison

NSLookup vs DNS Security

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

Head to head
About

NSLookup

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.

Highlights
  • View domain DNS information
  • Find target IP address
  • See name server records
  • Query NS and CNAME records
  • Force authoritative responses
Features
Read full description

NSLookup is an internet utility to get domain's DNS information. It will help you to find the target IP address of a domain or see what name servers are set on a specific domain. NSLookup for iPhone and iPad allows you to see the public DNS records of domains or sub domains. Then you may also query the NS and CNAME records. It's also possible to force it to get an authoritative response from main DNS server of the domain.

About

DNS Security

This app encrypts your DNS queries using DoH and DoT protocols to enhance online privacy and security. It prevents eavesdropping and data manipulation by securing the translation of domain names to IP addresses. Choose from trusted providers or configure your own server for a safer browsing experience.

Highlights
  • DNS over HTTPS (DoH) support
  • DNS over TLS (DoT) support
  • No VPN configuration needed
  • Configurable custom DNS servers
  • Privacy-focused, no user data collection
  • Choice of trusted DNS providers
  • Supports custom URL schemes for automation
Features
Read full description

Make your DNS private. DNS Security helps protect your privacy by encrypting DNS queries with DNS over HTTPS (DoH) and DNS over TLS (DoT). Choose a provider, enable your DNS configuration, and manage your settings in one place—without routing your internet traffic through a VPN. WHY ENCRYPT YOUR DNS? HTTPS protects the content exchanged with websites, but traditional DNS lookups may still be unencrypted. These lookups translate domain names into IP addresses and can reveal the domains your device requests. Encrypted DNS helps protect queries between your device and your chosen DNS provider from eavesdropping and tampering. Your provider still handles those queries, so choose one whose privacy practices you trust. EVERYDAY DNS CONTROL • Use DNS over HTTPS or DNS over TLS. • Choose built-in profiles for providers including Cloudflare, Google, and AdGuard. • Enable or disable your DNS configuration from the app. • Choose whether DNS settings apply on Wi-Fi, cellular, or both. • Check DNS protocol and provider details in the Status tab. DNS SECURITY OR DNS SECURITY PRO? DNS Security includes the everyday DNS controls above at no cost. It offers an optional Pro in-app purchase for the advanced features below. DNS Security Pro is the paid edition. It includes the same everyday DNS controls plus these advanced features from the start: PRO FEATURES (IN APP PURCHASE) • Create custom DoH and DoT profiles. • Download updates to built-in DNS profiles. • Enable or disable DNS for specific Wi-Fi SSIDs. • Switch profiles with Shortcuts and URL schemes. The difference is advanced control: both editions support encrypted DNS. You can unlock the Pro tools inside DNS Security or choose DNS Security Pro with those tools already included. DESIGNED AROUND PRIVACY DNS Security manages your device's DNS configuration and does not collect personal information. DNS requests are handled by your selected provider under that provider's privacy policy. Encrypted DNS protects DNS queries; it does not make all browsing anonymous. Blocking malicious domains depends on the provider and profile you choose. AUTOMATE YOUR DNS With Pro, use Shortcuts or a compatible app to open a switch URL and select a DNS profile with your preferred network settings. Example: select google-DOH for Wi-Fi, with cellular disabled: dnsapp://switch?config=google-DOH&enableOnWifi=true&enableOnCellular=false Use the scheme for your installed app: • DNS Security Pro: dnssecuritypro:// • DNS Security: dnssecurity:// • Shared scheme: dnsapp:// Replace dnsapp in the example with your app's scheme. The requested profile must already exist in the app. Initial activation may require selecting DNS Security in iOS Settings. Choose your DNS. Control your settings. Add privacy to every lookup that uses your encrypted DNS configuration.

Screenshots

NSLookup4 screens
DNS Security4 screens

Verdict

The call

The clearest difference is rating: DNS Security at 4.8 against NSLookup's 3.0. DNS Security also leads on ads (none vs shown) and update cadence (every 2 days vs every 9 months). NSLookup's advantage is iOS requirement (13.6 vs 17.0). On price, ratings volume, in-app purchases and monetization model 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. NSLookup sells 1 one-off in-app purchase and DNS Security 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

DNS Security holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 31 and 72 respectively. Written reviews point the same way: 54% of NSLookup's written reviews are positive against 67% of DNS Security's.

UpkeepUpdate frequency

NSLookup ships an update every 9 months, DNS Security every 2 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
NSLookup versus DNS Security: the parameters behind the verdict, then further details
ParameterNSLookupDNS Security
PriceFreeFree
Rating3.0 (31 ratings)4.8 (72 ratings) — better
Positive reviews53.9% of reviews66.7% of reviews — better
Number of ratings3172 — better
Update frequencyEvery 9 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.6 — better17.0
Further details — not scored
Size30 MB5 MB
Age rating4+4+
DeveloperDayana Networks LtdCHUNG-HO LEE

Customer experience

NSLookup

All ratings31 ratings
Positive48.4%
Neutral3.2%
Negative48.4%
Written reviews128 reviews
Positive53.9%
Neutral7.0%
Negative39.1%

DNS Security

All ratings72 ratings
Positive93.1%
Neutral4.2%
Negative2.8%
Written reviews15 reviews
Positive66.7%
Neutral6.7%
Negative26.7%

In-app purchases

1 purchases

NSLookup

One-time1
  • NSLookup Pro$1.99
1 purchases

DNS Security

One-time1
  • Unlock Pro features$1.99

Questions

Is NSLookup free?
NSLookup is free to download, with in-app purchases available.
Is DNS Security free?
DNS Security is free to download, with in-app purchases available.
Which has better reviews, NSLookup or DNS Security?
DNS Security is rated higher. NSLookup averages 3.0 out of 5 from 31 ratings, while DNS Security averages 4.8 from 72 ratings.
Do NSLookup or DNS Security have ads?
NSLookup shows ads; DNS Security does not.
Which is updated more often, NSLookup or DNS Security?
NSLookup ships an update every 9 months, and DNS Security every 2 days. Most recently, NSLookup was updated on October 21, 2026 and DNS Security on October 24, 2026.

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