Hammer Proxy vs Cert Recon

IMPORTANT NOTICE Hammer Proxy is NOT a VPN service and does NOT provide or sell VPN or proxy servers. To use the app you need your own server configuration. Please make sure your use of the app complies with the laws and regulations that apply to you. Hammer Proxy is a network client for engineers, administrators and anyone who runs their own servers. Import a server configuration, check that it responds, and connect with one tap from your iPhone or iPad. CONNECT • Import a configuration from a link, a QR code, a file or a server list. • One button to connect; an Expert mode when you need full control. • Works with common open tunnel protocols supported by the Xray and sing-box cores, and with WireGuard-based configurations. CHECK YOUR SERVERS • Smart Ping measures every server with a real connection and shows which ones respond. • Auto mode connects to the server that responds best and moves to another one if it stops responding. • Sort servers by response time, name or country. ROUTING • Choose what goes through the server: everything, only selected sites, or everything except selected sites. • Custom rules for domains and addresses. SERVER LISTS • Lists with traffic and expiry information, automatic updates and several profiles. • Back up and restore your servers and settings. ON YOUR DEVICE • Live Activity on the Lock Screen and in the Dynamic Island with Pause and Disconnect; a Control Center control on iOS 18. • Home-screen widget, Siri Shortcuts and quick actions. • App lock with a code and Face ID. • Send your server list to Hammer on your TV over your home network. DATA The app does not collect, track or upload your network activity. No accounts, no ads, no analytics. Your configurations are stored only on your device. LEGAL Terms of Use: https://hammerproxy.org/terms Privacy Policy: https://hammerproxy.org/privacy

Cert Recon reads the TLS certificate chain a server presents and explains it in plain language: who issued it, when it expires, which names it covers, and whether this device trusts it. It also answers a question most computers cannot. Your phone holds two independent paths to the internet at once. Cert Recon asks the same host over Wi-Fi and over cellular and compares the answers, because a network that intercepts TLS has to re-sign the connection with its own certificate authority. The cellular path shows you what the certificate should have been. Hotel, airport, conference and corporate guest networks do this routinely. On a device with one path, it still catches the common case: a certificate that this device trusts yet carries no Certificate Transparency timestamps is being vouched for by an authority installed on the device rather than a public one. That is how a filtering proxy works, and Cert Recon names the authority doing it. WHAT YOU GET • The full chain, leaf to root, exactly as the server presented it • Every field: subject, issuer, validity, key type and size, signature algorithm, serial, SANs with their types, key usage, extended key usage, basic constraints, certificate policies, OCSP and CRL URLs, CT timestamps • SHA-256, SHA-1 and public-key (SPKI) fingerprints • Trust evaluated against this device's store, with the reason it failed rather than a red cross • Expiry countdown, weak-key and weak-signature flags, hostname mismatch and self-signed detection • Interception check: Wi-Fi against cellular, issuer sanity, transparency timestamps, captive-portal awareness • Pin a host's key and be told if it changes • History of what you have inspected, one tap to run again • Export the chain as PEM or the finding as a text report • Configurable port and SNI • iPhone and iPad, dark-first PRIVACY Nothing leaves your device. No account, no analytics, no tracking, no third-party frameworks. Hostnames you inspect are not transmitted anywhere. Pinned hosts and history stay on the device. Cert Recon is a certificate inspector: it completes the TLS handshake, reads the certificate, and closes. It sends no request body and no HTTP to the host you name. FREE No in-app purchases, no subscription, no gated features. Part of the 404 Tools Recon suite; hand any host straight to the other Recon apps you have installed.