The vanguard of email security, merging blockchain's might with seamless encryption to shield your digital dialogue. Your inbox, redefined and secured.

Joined March 2024
Your phone number shouldn't be the key to your private life. SealSend: end-to-end encrypted chat, groups & email. 🔒 No phone number or email to sign up 🔑 Your keys never leave your device ✍️ Every message signed Now on Google Play 👇 play.google.com/store/apps/d…
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One rule we'll always repeat: Never share your seed phrase. Not with us, not with "support," not on any app, encrypted or not. SealSend protects your conversations. Your seed phrase stays offline.
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🩺 Test results with family. 🔐 A password or API key for a teammate (then rotate it). Anything you'd hesitate to put in Slack, SMS or email.
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👥 Cofounder and board chats. Remove someone from a group and the group key rotates, so they can't read what's said next.
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📵 SIM-swap proof by design. No phone number means there's nothing for an attacker to port. Your identity is your wallet, and only you hold the 24 words.
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💸 Crypto OTC deals: share your receiving address in SealSend. Every message is signed by your wallet key and tamper-checked. A swapped address can't pass as yours.
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🪪 Passport scans, tax forms, bank statements for your accountant or landlord. Encrypted on your phone before they leave it. Not a plain attachment sitting in someone's inbox.
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What it's built for 🧵 📄 Contracts, NDAs, term sheets. Send them as a SealSend Secure Email: AES-256 encrypted, signed, and we never touch your mailbox.
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SealSend 1.0.6 is live on Android! Encrypt messages and files, share them through your email or chat app, and decrypt in SealSend. Now with ION + TON wallet support, a cleaner interface, and bug fixes. Still completely free. play.google.com/store/apps/d…
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This release brings cleaner compose and wallet screens, simpler contact creation, and fixes across the app. SealSend remains free to use. Blockchain transactions, including wallet activation, can still incur network fees. Update now and let us know what you think.
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SealSend also includes: • Encrypted direct chats and group messaging • Contact invitation links • QR wallet-address scanning • PIN and biometric unlock • Separate wallet balances and activation status • Recovery phrase backup for each wallet Keep those recovery phrases private.
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ION + TON support is here. Create or import wallets for either network, manage both, and choose a default sender. Encrypted sharing works ION → TON and TON → ION. Select the recipient’s correct network so SealSend can look up the right wallet.
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Receiving is simple: Open the received .sealsend file in SealSend, unlock the app, and decrypt it with the intended recipient wallet. Forwarding the file doesn’t give someone else access. They need the matching wallet’s private key to decrypt the content.
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Keep using the apps you already know. Send the encrypted package through Gmail, another email app, WhatsApp, or a chat app that supports file sharing. SealSend doesn’t need access to your inbox. You choose the recipient and confirm sending in your email or chat app.
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How it works: 1. Create or import a wallet. 2. Enter the recipient’s wallet address or scan their QR code. 3. Write your message and attach a file. 4. Choose Email app or Chat app. SealSend encrypts the content before handing it to the app you choose.
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SealSend is expanding its network support! 🚀 A future release will add support for The Open Network (TON), giving you more ways to use SealSend. Stay tuned for updates on the rollout.
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SealSend 1.0.5 is now live on Google Play! 🚀 This update includes multiple bug fixes. Update to the latest version and keep the feedback coming. Still totally free. No subscriptions. play.google.com/store/apps/d…
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SealSend is now live on Android! Encrypt your message in SealSend, send it through your favourite email or chat app, and let the recipient decrypt it in SealSend. Totally free. No subscriptions. Get it on Google Play: play.google.com/store/apps/d…
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A new SealSend Android update is now in Google Play review! It brings a cleaner sign-in and wallet setup experience, keyboard and layout fixes, and a smaller app download. Coming soon after approval. Encrypt, share and decrypt via email or chat apps. Still totally free.
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