Every network your phone can see, in one test
Cellular, Wi-Fi and Bluetooth, live on the phone while you test. When you're done, replay the whole session in the browser with charts, maps and an issue timeline on a proper screen.
Free to start. A basic test needs no account at all. Private beta: join the waiting list.
One device. Every layer.
A network of networks in your pocket. YANL reads all of them on the same one-second tick, so cause and effect line up across radios instead of living in separate tools.
What it measures
- Cellular2G · 3G · 4G · 5G NR: RSRP, RSRQ, SINR, serving + neighbour cells, handovers
- Wi-FiSignal, band, channel, standard, and every access point in range
- BluetoothPaired and in-range devices with live signal strength
- GPS / GNSSFix quality, satellites, speed and heading, with every sample on the map
- Satellite NTNNon-terrestrial network status on supported phones. Early days, and expanding as devices ship
What it runs
- iPerf3 speed testsThroughput, jitter and loss over TCP or UDP to your own server
- Port scanningFind open ports on devices across the local network
- Device discoverymDNS, SSDP and NetBIOS sweep of the LAN
- Data trafficLive cellular and Wi-Fi throughput counters
- Speed-test historyEvery test in the session, in one sortable table
- Built-in terminalPing, DNS and hands-on checks when you want them
From the street to the big screen
Capture in the field on the device in your hand; do the reading where it's comfortable.
Record on the phone
One tap. The app grades cellular, Wi-Fi, Bluetooth and GPS live while logging every metric each second, and you can drop timestamped notes without breaking stride.
Upload in a tap
Straight from the phone the moment you stop. Just a link and an access code: no cables, no exporting, no desktop client.
Read it on the big screen
Open the replay on a laptop or monitor: scrub the timeline, jump straight to issues and notes, and see every metric on charts, maps and distributions.
Capture in the field
Read it back on the big screen
Real screenshots: one session, captured on the phone and replayed in the browser.
And the whole loop is free during early access. Staying affordable is the point. Accounts that keep uploads longer start small. See pricing.
Built to tell you, not to be watched
Health at a glance
A live verdict for cellular, Wi-Fi, Bluetooth and GPS, graded against engineering thresholds. Green means go; amber tells you where to look.
Charts that answer when
Threshold zones sit behind every line on a real time axis. Drops, handovers and your own notes are marked where they happened, so cause and effect land in the same picture.
Paste the results into any AI
Copy for AI turns a session into a raw, structured measurement summary that ChatGPT, Claude or Gemini can explain in plain English. Wi-Fi names and precise locations are masked by default.
Maps and route replay
Every sample placed on the map and coloured by signal, so a dead spot on the street is a red patch on the screen.
Share a link, not a spreadsheet
Send a colleague the exact moment that mattered: a clipped, read-only replay that opens in the browser.
Configurable to the bone
Bento workspaces, custom thresholds, iPerf3 test plans, LAN tools and a terminal. Built by network engineers, for network engineers.
Join the private beta
YANL is being shaped right now by a small group of engineers who test networks for real: drive tests, office surveys, awkward basements. Places open in small batches, and early members get a direct say in what we build next.
Free during early access. We email invitations as places open.