On the App Store

latency for iOS turns iPhone into a real network instrument. Point the app at any host or IP and track connectivity: round-trip times, jitter and loss, a live traceroute drawn hop by hop on a 3D map, and a plain-English verdict on whether a service is actually down or the problem is local.

The network tools run entirely on-device, and every intelligence feature can be toggled off at any time. No account, no sign-in, free.

Download on the App Store

Modes of operation

Ping

An ICMP ping tool with a live round-trip chart, per-ping log, and running jitter and loss.

• Fixed or continuous sessions: ping a set number of times, or keep going until stopped.
• Configurable count, delay between pings, timeout and packet size.
• Haptics on start, finish and timeouts, so a flaky link is noticeable without watching the screen.

Traceroute

A visual traceroute drawn live on a 3D map, hop by hop, with numbered pins. The map shows exactly where a route slows down or dies, separating the local network from the ISP from the wider internet.

Reachability

One tap runs a staged diagnosis and returns a clear verdict:

1. Network interface up and usable
2. DNS resolves the name
3. ICMP reaches the host
4. Port 443 accepts a connection
5. A real HTTPS request gets a response

A slow server, a blocked port and filtered ICMP each show up as distinct results, pointing at which layer is failing.

Intelligence

Context around the current target:

• Geolocation for the target and every traceroute hop, placed on the map.
• Network operator (ASN): who actually runs the host.
• Trending incidents for major services, plus in-app issue reports.

Widgets

Home and Lock Screen widgets ping a chosen target and show the latest round-trip time, keeping a favorite server in view. Bookmarks, history and a search box that resolves while typing round out day-to-day use.

Reading the numbers

The ping screen reports round-trip time plus three measures of how consistent that time is. The measures are easy to confuse:

Metric	Meaning
RTT	Round-trip time: how long one ping takes to go out and come back. Lower is better.
Jitter	Volatility between consecutive pings, the average size of the change from one ping to the next. Low jitter means a steady connection.
Std dev	The overall spread of every sample around the average RTT, capturing general inconsistency across the whole session.
Loss	The percentage of pings that never got a reply.

Jitter vs. Standard Deviation (std dev)

Both describe variability, in different ways. Jitter is point-to-point: the change between each ping and the one before, which is what hurts real-time traffic like calls and games. Std dev is a whole-session figure: how far samples sit from the overall average.

A link can look calm on average yet spike every few seconds. That periodic spike shows up strongly in jitter while barely moving a low std dev, which is why the app shows both.

Alerts

Coming soon

Push notifications when a saved target starts failing, delivered straight to the device. Like the rest of the app, alerts need no account: alerts are an in-app purchase tied to the device, with no sign-up.