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IronSeal
Encrypted messages that self-destruct if forced open
Zero-knowledge encrypted messaging. Messages stay encrypted until you unlock them with biometrics — and if someone fails authentication, they self-destruct and both people are alerted in real time. The server only ever stores ciphertext. Even we can't read your messages. Free.
Top comment
Hey Product Hunt 👋 I'm Gabe, the solo dev behind IronSeal. I built this because of one thing that always bugged me: almost every "encrypted" messaging app shows you everything in plaintext the second you open it. If someone grabs your unlocked phone, your whole history is right there — and in a lot of apps, the company running the servers can technically read your messages too. IronSeal works differently: 🔐 Zero-knowledge. All encryption happens on your device. The server only ever stores ciphertext,I literally can't read your messages, even if I wanted to or was compelled to. There's no master key and no backdoor. 👁 Biometric-gated decryption. Messages stay encrypted at rest. They only decrypt after you pass Face ID / a passkey — so an unlocked, stolen phone still doesn't spill your conversations. 💥 Tamper response. If someone keeps failing authentication, the messages can self-destruct (configurable: e.g. 3 strikes → purge) and both people get alerted in real time that an unauthorized attempt happened. 📝 Text-only on purpose. No file sharing. Almost every major messaging-app exploit of the last few years came through file handling (image/PDF/video parsers). I removed the entire attack surface. Under the hood: ECDH P-256 + AES-256-GCM, a fresh ephemeral key per message for forward secrecy, 256-byte message padding, passkeys (WebAuthn), and a hash-chained audit log. Django + Next.js, all crypto via the Web Crypto API. Honest about the limits, too: I can see metadata (who messaged whom, and when), just never content. It's not a full Double Ratchet yet, and there's no independent audit yet — I'd rather say that plainly than overclaim. It's free at https://ironseal.app. I'll be here all day — genuinely want your hardest questions, especially on the crypto and the threat model. 🙏
About IronSeal on Product Hunt
“Encrypted messages that self-destruct if forced open”
IronSeal was submitted on Product Hunt and earned 0 upvotes and 2 comments, placing #136 on the daily leaderboard. Zero-knowledge encrypted messaging. Messages stay encrypted until you unlock them with biometrics — and if someone fails authentication, they self-destruct and both people are alerted in real time. The server only ever stores ciphertext. Even we can't read your messages. Free.
On the analytics side, IronSeal competes within Messaging, Privacy and Security — topics that collectively have 65.9k followers on Product Hunt. The dashboard above tracks how IronSeal performed against the three products that launched closest to it on the same day.
Who hunted IronSeal?
IronSeal was hunted by Gabriel Akwasi Asare. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of IronSeal including community comment highlights and product details, visit the product overview.