TrueOffset vs NetScan Pro

TrueOffset is a precision time utility for comparing time sources and measuring clock offset with clarity and confidence. Compare multiple Network Time Protocol (NTP) servers, visualize the difference between them, and see how your device's clock aligns with selected references. A clean, instrument-style interface presents time as a measurement—focused on accuracy, not decoration. FOUR CLOCK FACES - 12-Hour Classic — Traditional analog display - 24-Hour Scientific — Full day on one dial - NTP Offset — Dual second hands show device vs. true time - Digital — Large display with millisecond precision UTC & TAI TIME SCALES Display Coordinated Universal Time (UTC) and International Atomic Time (TAI) alongside your local time. UTC and TAI feature authentic deadbeat second hands that step crisply to each second, visually distinct from the smooth-sweep local time. TAI runs 37 leap seconds ahead of UTC—see both atomic time scales at a glance. PRECISION VISUALIZATION The NTP Offset view displays two second hands: your device clock (gray) and true NTP time (green). The offset magnifier shows drift on a ±10ms scale, so you can see sub-millisecond accuracy at a glance. DUAL-STACK COMPARISON A feature no other NTP app offers: compare IPv4 and IPv6 paths to the same server. Detect DNS misconfigurations, identify when address families route to different servers, and verify your network is delivering consistent time on both stacks. FLEXIBLE TIME SOURCES Compare against Apple, Google, Cloudflare, NIST, US Naval Observatory, global NTP pools, or add your own servers. Set any source as your reference and track offsets across all configured servers. QUALITY ANALYTICS Eight swipeable chart pages reveal the character of your time sources: - Dashboard — Sparkline overview of all servers - Offset History — Track drift over time - Histogram — Offset distribution analysis - Box Plot — Compare consistency across servers - RTT Scatter — Correlate latency with offset - Clock Sources — Decode reference clocks (GPS, PPS, Rubidium, Cesium) - Dual-Stack — IPv4 vs IPv6 path comparison - Rankings — Servers scored by jitter and round-trip time TrueOffset is designed for users who care about how accurate their time really is—and want to see the difference, not just trust it. --- In appreciation of Emerald Sequoia's Emerald Time.

See every device on your Wi-Fi in seconds. Test your internet quality. Find which trackers are watching you — and block them in one tap. NetScan Pro is the network toolkit Apple should have built into iOS. Discover what's on your network: • Scan every device — phones, laptops, smart-home gadgets, cameras, printers • See vendor, OS, open ports, and a 0–100 security rating for each one • Auto-detect Matter / Thread / HomeKit hubs, IP cameras, NAS units, IoT • Identify devices by name, vendor (offline OUI database), or MAC Audit your privacy: • Privacy Audit — see your public IP, ISP, VPN posture, encrypted-DNS status • Tracker check — find which advertising and analytics domains reach your phone • One-tap tracker blocker — install AdGuard, Cloudflare, or Quad9 DNS protection • Works system-wide across every app on your iPhone, not just Safari Diagnose your internet: • Apple-style RPM + bufferbloat test • MTR / traceroute with live latency graphs • Per-port reasons (tcp-connected / tcp-rst / no-response) like nmap • UDP port scanner with protocol-aware probes for DNS, SNMP, mDNS, and more Sysadmin power tools: • DNS Lookup (A / AAAA / MX / TXT / SRV / CNAME) • WHOIS lookup with referral chasing • IP Geolocation with map view • Subnet Calculator (CIDR ↔ range ↔ mask) • Bonjour Browser — every mDNS service the LAN announces • Wake-on-LAN for any device with a known MAC See what's exposed: • Built-in CVE matcher flags vulnerable services (OpenSSH, nginx, IIS…) • WAN exposure check finds devices reachable from the internet via port-forwarding • Default-credential heuristic spots routers / cameras still on factory passwords • Per-device security score from 0–100 Beautiful reports: • Generate a multi-page PDF network snapshot you can share or archive • Export device list as text • AI-powered summary via Apple Intelligence (iPhone 15 Pro and later) iCloud-synced multi-network profiles, background change alerts, custom timing presets (T0–T5), and an Aggressive scan mode that runs every probe at once round out the package. Privacy promise: NetScan Pro runs every scan on-device. No personal data, MAC addresses, or device names ever leave your phone. No analytics. No ads. No tracking. No subscription. Ever. Built by an independent developer who scratches his own itch. — Use NetScan Pro only on networks you own or have permission to scan.