Whois Master vs Crypt Secure

Whois Master is the fast, no-nonsense toolbox for anyone who works with domains, servers and networks. Look up who owns a domain, when it expires, where it points and whether its certificate is healthy — all from your iPhone, in seconds. DOMAIN WHOIS • Registrar, creation, update and expiry dates • Days until expiry, with a warning when a domain is about to lapse • Domain age at a glance • Name servers and status codes • Works with hundreds of extensions, including .com, .net, .org, .io, .co, .me, .dev, .app and country domains such as .tr and .co.uk • International (IDN) domains supported • Paste a full URL and it is trimmed to the domain for you DNS LOOKUP • A, AAAA, CNAME, MX, NS and TXT records • Results grouped by record type and easy to scan SSL CERTIFICATE CHECKER • Valid, expiring or expired at a glance, with the reason when something is wrong • Issuer, subject, validity period and days remaining • TLS version, HSTS and signature algorithm • All domains covered by the certificate • Serial number and SHA-256 fingerprint IP LOOKUP • Your own public IP address, with one tap to copy • Look up any IPv4 or IPv6 address • Hostname, city, region, country, organization (ASN), postal code and time zone • Location shown on a map BUILT FOR DAILY USE • Long-press any value to copy it • Clear error messages when a registry does not respond • Full dark mode support • Clean, native iOS design • No account, no sign-up Whether you are a developer, system administrator, domain investor or just curious about a website, Whois Master gives you the answers without the clutter.

CRYPT is a powerful, modern encryption sandbox that lets you encode messages, decode secret text, and manage fully custom keys — all locally on your device. No accounts, no servers, no tracking. Just pure, offline cryptography you control. Whether you’re exploring ciphers, protecting sensitive text, or experimenting with encryption systems, CRYPT gives you a clean, intuitive interface with full control over your keys and output.