DDNotes vs Angry Port Scanner

The product is based on the passive electromagnetism and pressure sensitive pen techonolgy,Write on plain paper without changing the traditional way of writing,the original handwriting not onle can be retained on paper but also can be stored on the computer mobilephone ,tablet and other electrionic devices by wireless or wired connection. The handwriting positioning is precise, the data is stored accurately, the original handwriting can be output, and the handwriting track playback is supported. It can also be used as a digital drawing board for artistic creation. It can be easily used in a variety of application scenarios such as double teacher classroom, interactive classroom, micro class recording, e-book bag, painting teaching, online live broadcasting and one-to-one,the A4 format with paper clip limit slot ,in school teaching. More widely, it should be in all kinds of education, office meetings, service business halls, finance and insurance, hotel and tourism, business meeting minutes, medical treatment and other industries and individuals.

Angry Port Scanner is a fast, private network and port scanner for your local Wi-Fi. In seconds, it discovers every device connected to your network and shows you exactly what each one is and which services it's running — all on-device. Whether you're securing your home network, troubleshooting a connection, finding a printer or NAS, or just curious about what's connected to your Wi-Fi, Angry Port Scanner gives you a clear, instant picture of your LAN. KEY FEATURES • Fast host discovery — finds live devices on your subnet in seconds using parallel TCP probing, so devices show up even when they refuse connections. • Open port & service scan — check any port range (e.g. 1-1024 or 22,80,443) and see open ports with their service names and banners. • Smart device identification — discovers device names, types and manufacturers over mDNS / Bonjour: Chromecasts, Apple devices, printers, speakers, routers, NAS boxes and more are recognized automatically. • Live results — hosts appear the moment they're found and fill in details as the scan continues, with clear status colors for alive, open-ports, and offline. • Powerful filters — filter results by name, IP, open port or device type to zero in on exactly what you're looking for. • CSV export — share or save your scan results as a CSV file from the system share sheet. • Scan history — completed scans are saved automatically so you can review them any time and clear them with one tap. • Tunable performance — adjust concurrency and timeout, toggle hostname resolution, banner grabbing and mDNS discovery to balance speed and detail. • Beautiful, simple interface — auto-detects your network and suggests a scan range, so you can just tap Scan and go. Download Angry Port Scanner and see everything on your Wi-Fi — fast, private, and free.