Full performance picture
Download and upload goodput, HTTPS latency, jitter, request failures, latency under load, and honest lower-bound labels when a data budget ends a fast test early.
NETWORK INTELLIGENCE
Understand what your connection is actually doing.
NetMaster is a private network diagnostics app for Mac, iPhone, and iPad. It measures performance, responsiveness, DNS behavior, route health, IPv4 and IPv6, security, and intermittent dropouts—and can privately show your Mac’s health on your iPhone through your own iCloud account.
Layer-by-layer diagnosis
Separate checks for the local route, gateway, DNS, IPv4, IPv6, remote reachability, TLS, HTTP, captive portals, and tunnel-routed traffic.
Dropout investigator
A finite monitor captures path changes, failed heartbeats, DNS and IP-family evidence, access-point handoffs, observed-coverage gaps, interruption duration, and user-marked problem moments. It supports lock-screen continuation on iOS 26 and resists App Nap during a user-started Mac session.
Private Mac monitor
See processor, memory, storage, network traffic, thermal state, battery, and uptime from your iPhone. Pair once with a short-lived code; live samples and reports stay in your private iCloud database, with no NetMaster monitoring server.
Private by design
No account, ads, analytics, or tracking. History stays on the device, can be switched to metrics-only, and shared reports redact sensitive addresses by default.
About Wi‑Fi radio details
The native Mac edition uses Apple’s public CoreWLAN framework to report the exact connected 2.4/5/6 GHz band, channel, width, RSSI, noise, SNR, PHY mode, and negotiated link rate. Public iPhone and iPad APIs do not expose those exact values, so the iOS edition reports only the best-effort radio details Apple supplies and never guesses.