MAC Vendor Lookup vs Connection Check

MAC Vendor Lookup is the fastest way to identify the manufacturer behind any MAC address — fully offline, with no accounts, no tracking, and no ads. Paste any MAC address and instantly see the vendor, OUI block, registry, and assignment range. The full IEEE OUI database (35,000+ vendors) is bundled with the app and works without an internet connection. Use the camera scanner to read MAC addresses off router labels and device stickers, or paste a wall of text from a log file and let the bulk extractor pull every address it can find. FEATURES • Instant offline lookup — no network calls, no waiting • Bundled IEEE OUI database, fully up to date • Camera scanner with on-device OCR • Bulk extraction from pasted text, logs, or imported files • History with notes, tags, and favorites • Insights view summarizing your most-seen vendors • Home-screen widget for recent lookups • Share Sheet extension — extract MACs from any app • Shortcuts & App Intents — automate lookups from anywhere on iOS • iPad and iPhone, light and dark mode, full Dynamic Type and VoiceOver PRIVACY This app is fully offline. No accounts. No analytics. No tracking. No third-party SDKs. Your lookups, notes, and tags never leave your device. TIP JAR The app is free. If it earns its keep on your home lab, network closet, or pen-test rig, an optional tip is appreciated. Tips unlock nothing — everything in the app is already yours. Made with care in the lab.

Connection Check shows you, in plain language, the network path iOS makes available to apps on your device — whether you are online, which interfaces are in use, and whether the network is expensive or in Low Data Mode. It is a focused, privacy-first utility: no account, no ads, no tracking, and nothing leaves your device. AT A GLANCE See an instant Online, Offline, or "Requires connection" status, with a clear explanation of what it means for your apps. INTERFACES Check whether the current path may use Wi-Fi, Cellular, Wired Ethernet, Loopback, or another interface type. Tap any row to learn what it means. NETWORK CONDITIONS Find out if iOS considers your connection "expensive" (such as cellular or Personal Hotspot) or "constrained" by Low Data Mode — the same signals well-behaved apps use to save your data. PLAIN-LANGUAGE EXPLANATIONS Every status, interface, and condition comes with a friendly explanation, plus the underlying technical detail for the curious and for developers. TECHNICAL DETAILS & DIAGNOSTICS Expand the technical section to see raw values (path status, interface availability, DNS / IPv4 / IPv6 support) and copy a clean, plain-text diagnostic summary to share with support. TEST REQUEST Run a single small request and watch how per-request policy toggles — allow cellular, expensive, or constrained access — change the outcome. These settings apply only to this app's own request, never to your whole phone. WHAT THIS APP CANNOT DO Connection Check cannot read your total mobile data usage, your carrier usage, or other apps' data usage. It only shows the network path information iOS makes available to this app. PRIVACY No sign-in. No analytics. No tracking. Nothing is collected or sent anywhere.