2.3.1A network toolkit for iPhone and iPad

A network toolkitin your pocket.

Test your internet speed, see what’s on your network, and check latency, DNS, ports, HTTPS and routes from the phone already in your hand.

Free to download · For iPhone and iPad

This Device, with battery, storage and temperature charts
A finished Latency Test: typical latency 8.7 ms and the latency curve
12 tools
Connectivity, speed, device and calculation
6 languages
In the app and on this site
17.0 and later
iOS and iPadOS

New in 2.3.0

Measurements, drawn as charts

Latency curves, routes hop by hop, request waterfalls and this device’s readings, readable at a glance.

Latency Test

Every ping, charted live.

Latency, spikes and timeouts, request by request. Typical latency, slower requests and latency variation come first; timeouts are counted on their own.

P50 · P95 · P99Jitter and the longest run of timeoutsProgress on the Dynamic Island and Lock Screen
About the Latency Test
Latency Test results
This Device

Your device, in charts.

Battery, storage, temperature and the path to the internet.

This Device, with battery, storage and temperature
Route Trace

Trace every hop.

Latency hop by hop on a chart, over IPv4 or IPv6.

A Route Trace, hop by hop
Website Check

See where every millisecond goes.

DNS, TCP, TLS and time to first byte, as a waterfall.

Website Check phase timings

Tools

Twelve tools, grouped by purpose

PlusPlus: some features of the tool need Linkalyst Plus

Speed

Device & Calculator

The Records tab

Records

Measurements are kept as reports

Results are written to JSON reports on your device. You can star, tag, search and filter them.

Compare two reportsPlus
Matching targets are compared metric by metric, and latency tests overlay their RTT curves.
Export JSON and CSV
Share reports as JSON, and per-request samples and DNS results as CSV. One report file can be exported free.
Share cards
4:5 images made on your device: three basic styles free, five more with Linkalyst Plus.
Favorites
Fill the targets and settings you test often back in; filling in never starts a test.
Dynamic Island and Lock Screen
While a test runs, its progress shows on the Dynamic Island and the Lock Screen.
iPad and iPhone Duo
On iPad, the toolkit and a single report open in windows of their own. On the inner display of iPhone Duo in landscape, setup and results sit side by side along the fold.

Free everyday tools, Linkalyst Plus for more

Free

Free to download

Shows ads

  • Internet Speed Test
  • Latency Test, one Ping target per run
  • DNS Lookup
  • Port Check, single and repeated checks
  • Route Trace and Website Check
  • Popular Services
  • This Device and Subnet Calculator
  • Download Test and Throughput Test
  • Share cards in the three basic styles
  • Importing reports
Linkalyst Plus

One-time purchase

Price as shown on the App Store · Family Sharing

  • Removes all ads
  • Device scan in Discover
  • Batch port scan
  • Resolver comparison
  • Latency tests with several targets or over UDP
  • Report comparison
  • Report-file export beyond the first free one
  • iCloud sync for reports
  • Five more share card styles
  • Plus features added later
Download on the App Store
Platform
iOS / iPadOS 17.0+
App languages
English · 简体中文 · 日本語 · Français · Deutsch · Italiano