IPMask vs VeinScan

IPMask works out an IPv4 network from an address and a mask: network and broadcast address, first and last host, number of hosts, netmask and wildcard. • Type the address the way you have it: 192.168.1.1, 192.168.1.1/22 or with a dotted mask. • Move the mask slider and watch the 32 bits split into the network part and the host part. • See the address type at a glance: private, public, loopback, link-local, multicast. • Switch to the binary view to see the address, netmask and network bit by bit. • Copy the whole result as text or share it. • On Apple Watch: enter an address with a keypad, turn the Digital Crown to set the prefix and read the result on your wrist. /31 point-to-point links (RFC 3021) and /32 host routes are handled correctly. Made for network engineers, students and anyone who sets up a router at home. The app works offline; it needs a connection only for the small ad banner.

VeinScan turns your iPhone camera into a live vein visualiser. It analyses every frame, recombines the colour channels into a narrow synthetic wavelength band, and boosts local contrast - so the veins beneath the skin stand out clearly on screen. HOW IT WORKS A camera sees the world through wide red, green and blue channels. VeinScan mixes those channels into a much narrower band that you tune yourself, anywhere from 500 to 1000 nm. It then flattens uneven lighting, applies adaptive local contrast enhancement, and filters out fine hair, leaving a high-contrast live map of the vessels under the skin. PIN IT IN PLACE WITH AR Found a good view? Tap ANCHOR and the enhanced image is pinned in 3D space, right over the arm. Built on ARKit - and on the LiDAR scanner where the device has one - the anchored image stays locked in position while you move the phone around it and look from another angle. Optional hand tracking follows the limb if it shifts. FEATURES - Live spectral enhancement, tunable from 500 to 1000 nm - Four view modes: Normal, Spectrum, Inverse and Vessels - Adjustable bandwidth, contrast, illumination flattening and hair filtering - AR anchoring - pin the enhanced image in 3D space and walk around it - Hand tracking keeps anchors aligned when the limb moves - LiDAR depth and surface fitting on supported devices - Exposure bracketing for steady shots - Torch control, freeze frame, zoom and adjustable overlay opacity - Collapsible control panel for a full-screen preview - English and Hungarian PLEASE READ VeinScan is an experimental visualisation tool. It is not a medical device. It does not diagnose, measure or treat anything, and it is not intended for any clinical or diagnostic use. What you see is a contrast-enhanced camera image, and how well it works depends a great deal on lighting, skin tone and which iPhone you are using. Never rely on it for a medical decision. PRIVACY Everything runs on the device. VeinScan has no account, needs no network connection, and never collects, stores or transmits your images or any personal data.