Underlayer vs ComDeck

UNDERLAYER: STEGANOGRAPHY MADE SIMPLE Turn ordinary pictures into secret carriers. Underlayer hides a text message inside a photo and reads hidden messages back. Everything happens on your phone. HIDE A MESSAGE • Hide any text in a photo from your gallery • Two modes: Hidden (invisible pixels) and Open (colored frame) • Open mode survives Telegram and WhatsApp compression • Share the result right away or save it to the gallery READ A MESSAGE • Extract hidden text from an image in one tap • The app detects the mode automatically • Share an image to Underlayer from the gallery or a messenger PASSWORD PROTECTION • Lock a message with a password: it is encrypted with AES-256 before it goes into the picture • Without the password nobody can read it, not even in Underlayer • Opening a password-protected message is free for everyone TWO MODES HIDDEN MODE • The message is stored invisibly in the pixels • The picture looks exactly the same • Send it as a file: messengers recompress photos and erase the message OPEN MODE • The message is drawn as a colored frame around the picture • Survives sending as a regular photo in Telegram and WhatsApp • Best for messengers PRIVATE BY DESIGN • Processing happens on your device, no internet needed • Your images and messages are never uploaded • No account, no sign-up • Without a password, anyone who opens the picture in Underlayer can read the message. Add a password for confidential text IDEAS • A note or a riddle inside a photo for a friend • A quiet watermark with your name inside your own pictures • A game, a scavenger hunt, or a fun way to learn steganography ALSO IN THE BROWSER The free web tool at underlayer.mef.space uses the same format: hide a message on a computer and read it on your phone, or the other way round. Password-protected messages are opened in the app. 37 LANGUAGES The app follows your device language; you can change it in Settings. PREMIUM Free with all steganography features, with ads. Password protection comes with the Premium subscription, which also removes all ads, or unlock it for 24 hours by watching 3 short videos. A one-time purchase removes ads for good. JPG, PNG, GIF and WebP supported. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

ComDeck is the developer's command deck — 16 native network and system tools in one dark-mode app with a built-in terminal toggle. EVERY TOOL HAS TWO MODES Tap the terminal icon to switch between a polished UI with charts and raw terminal output with ANSI colors. Type commands directly in the terminal input bar. FREE (6 tools) - Ping — Real-time latency graphs with TCP probes - DNS Lookup — Resolve A, AAAA, MX, TXT records instantly - IP Info — Public IP, geolocation, and network details - Whois — Organization, ISP, ASN, coordinates, reverse DNS, proxy detection - Device Info — CPU, RAM, battery, model, and OS details - Port Check — Scan common ports with service identification BASIC — $9.99/month (11 tools total) - Traceroute — Hop-by-hop path visualization - WiFi Analyzer — Signal strength, channels, and security - HTTP Client — Full request builder with header control - SSL Inspector — Certificate chain and expiry validation - Speed Test — Download, upload, and latency via Cloudflare PRO — $49.99/month (all 16 tools) - JSON Debugger — Tree view, path queries, structural diff, pretty-print, URL fetch, sensitive-key masking - Log Viewer — Live OSLog streaming with multi-level filters, histogram, marking, recording, and export (text, JSON, CSV) - Process Manager — Read-only process tree with ancestors, children, search, and export (macOS) - Scheduled Tasks — Read-only LaunchAgent inspector with decoded schedules and user-granted folder access (macOS) - Security Scanner — 15 sandbox-safe local posture checks (OS version, Gatekeeper, biometrics, code signing, keychain, trust store, volume encryption, and more) plus remote host audit (DNS, port scan, TLS handshake, security headers) BUILT NATIVE No web views. No wrappers. Built on Network.framework, Security.framework, OSLog, and SwiftUI. Every tool runs natively on your device. PRIVACY FIRST No analytics. No tracking. No ads. All tools run locally — nothing about your network, system, or lookups is transmitted to any server operated by ComDeck. HONEST ABOUT THE SANDBOX Some system-level checks (FileVault, firewall, system-wide processes) require admin privileges unavailable to sandboxed apps. ComDeck does not fake these results. The Security Scanner clearly labels which checks are intentionally skipped and why, so the data you see is real. TIER POLICY Higher tiers include all tools from lower tiers. Upgrade or downgrade anytime. Terms of Use: https://comdeck.app/terms.html Privacy Policy: https://comdeck.app/privacy.html