Lantern

Illuminate your network.

Lantern is a professional network diagnostics toolkit for iPhone, iPad and Mac. Its 80 tools speak the network's own protocols directly.

The DNS engine sends real DNS queries, Ping sends real ICMP packets, and the LAN Scanner finds devices on your network itself instead of asking a cloud service.

Request Beta Access
Lantern

Why Lantern

🔬

The Real Thing, Not a Wrapper

Native protocol implementations for DNS, ICMP, SNMP, SMTP, NTP, Whois and more.

💻

One Toolkit, Every Device

A native app on iPhone, iPad and Mac, built for each screen: a sidebar on Mac and iPad, and a tile layout with tool search on iPhone.

🧰

Built for Work

Every tool has its own built-in help. Results copy in one tap, and some tools export.

🎙️

Shortcuts and Siri

Twelve actions, from Ping Host to Get Domain Expiry.

💳

Honest Pricing

Twelve tools are free and fully functional. One purchase unlocks everything on every device, with no subscription.

🔒

Private by Design

No account, no ads, no analytics, no tracking.

Screenshots

Lantern — Main Screen Lantern — Basic DNS Records Lantern — Whois Lookup Lantern — Speed Test Lantern — IP/IF Config Lantern — Subnet Calculator Lantern — Email Health Lantern — QR Code Generator Lantern — SSH Client Lantern — Manual

80 Tools in Nine Categories

This Device
  • Network Info, Who Am I, Wi-Fi details, interfaces (IP/IF Config) and DHCP lease.
  • On iPhone, Cellular Outlook shows predicted service quality.
  • On Mac: Wi-Fi Analyzer, routing table, ARP cache, IPv6 neighbors, live connection monitoring and connection endpoints.
Connectivity
  • Ping, Traceroute, Speed Test (M-Lab NDT7), Network Quality Monitor and TimeSync (NTP).
Local Network
  • LAN Scanner, which finds devices by ping, ARP, Bonjour and UPnP, and shows device names, makers, open services and randomized MAC detection.
  • Bonjour Browser, Passive Listener, SMB Scanner and Wake on LAN.
  • ARP Ping on Mac.
Devices & Logs
  • SNMP and SNMP Walk.
  • Syslog Listener and Syslog Analyzer.
  • SSH terminal with saved sessions on iPhone and iPad.
  • Live Traffic Blacklist Monitor on Mac.
DNS
  • NSLookup for 57 record types, Dig and Dig+Trace.
  • DNS Propagation across 20 servers worldwide.
  • Resolver speed tests, Test Default DNS, Simple Query (IPv4/IPv6).
  • Zone transfer testing, a BIND zone file builder, authoritative serial checks, DNS Verify, DNS software version, ENUM, and Flush DNS Cache guidance.
  • Shows which DNS server answered, and warns when the system DNS is unavailable and a fallback server answered instead.
IP & Domain
  • IP Geolocation for one address or up to 500.
  • Whois, IP Whois, BGP/ASN lookup, IP or hostname to ASN, and IP Drilldown (reverse DNS delegation).
Email
  • Email Health scores a domain's mail setup out of 100.
  • MX lookup.
  • Blacklist checks against about 28 public DNS blacklists. Every "clean" result is confirmed against the list's test entry, so a list that refuses to answer isn't reported as clean. Spamhaus works with a free Spamhaus key.
  • SPF validation that counts nested lookups the way receivers do, plus an SPF builder.
  • DMARC and BIMI lookup and builders.
  • Email header analysis, SMTP diagnostics, SMTP tests and open relay testing.
Security Testing
  • Port Scanner.
  • SSL certificate inspection with trust checking.
  • Certificate Transparency search.
  • HTTPS security header grading.
  • Open redirect testing.
  • On Mac: Packet Generator and UDP load testing (Packet Flooder).
Utilities
  • Subnet calculator, MAC address lookup and port/service lookup.
  • HTTP request inspector.
  • Base64, URL and JWT decoders, and MIME type lookup.
  • QR code generator (URL, Wi-Fi, contact, email, SMS, phone, location and text).

Free and Pro

Free

Free download

Twelve tools, free and fully functional, with no trial and no limits:

  • Ping, Traceroute and Speed Test
  • Port Scanner
  • NSLookup, Get Basic DNS Records, Whois and IP Whois
  • IP/IF Config and Subnet Calculator
  • Blacklist Check
  • QR Code Generator

Help is always free.

Lantern Pro

US $14.99, one time

Unlocks every tool. A universal purchase covering iPhone, iPad and Mac. No subscription, and Restore Purchases is included. Regional prices vary.

Privacy

No account, no analytics, no ads and no tracking; the developer receives no data. Tools talk directly to the hosts and services you query. Wi-Fi names, location (needed by iOS to read the Wi-Fi name), SSH credentials and Spamhaus keys never leave the device. One exception: Speed Test uses M-Lab, which keeps and publishes each test's results, including your public IP address. Read the full privacy policy.

Requirements

iOS 26, iPadOS 26 or macOS 26 or later. Some tools need Local Network permission, which is requested the first time a local tool runs. Mac only: Wi-Fi Analyzer, Routing Table, ARP Cache, IPv6 Neighbors, Connection Monitor, Connection Endpoints, ARP Ping, Live Traffic Blacklist Monitor, Packet Generator and Packet Flooder. iPhone and iPad only: SSH Client and Cellular Outlook.

IP address data powered by IPinfo. Geolocation data by DB-IP (CC BY 4.0). Speed tests by M-Lab NDT7.
Support: lantern.deepdarkabyss.com/support

Use Lantern's scanning and testing tools only on networks and systems you own or are authorized to assess.

Join the Lantern Beta

Lantern is in private beta for iPhone, iPad, and Mac. Testing is by invitation: tap Request Beta Access below and fill in the short form in the email: your device, operating system and version, and the Apple ID you use with the App Store. Test invitations are tied to that account, so please use the one on your device.

Lantern is a free download with twelve fully functional tools. Lantern Pro unlocks all 80 tools on every device for a one-time US $14.99.

Request Beta Access