Seal - Encrypted envelopes for your family after you die
Show HN: Seal – Letters and passwords that open for your family after you die
Seal is an iOS app that securely stores your most sensitive information—passwords, letters, photos, and more—and releases it to chosen loved ones only after you pass away. It uses Shamir's Secret Sharing and end-to-end encryption with no server, ensuring no one can access your data early. You write envelopes for each person, set release rules, and check in periodically. When you stop checking in, a countdown triggers, and your trusted contacts can unlock the envelopes. Free on TestFlight, with a one-time purchase planned.
If you own a hardware wallet, do not make Seal the only copy of a live seed phrase yet. Nobody independent has audited it. What your family cannot reconstruct without you is where the steel plate is, which wallet it belongs to, and who to call first, and none of that needs the twelve words. Start there.
- sebmellen
> What is not done
Rewrite this Readme without Claude?
Also
> There's also no server at all besides a free Cloudflare static site. The encrypted bundles of passwords and photos are in Cloud Kit. Sign-in/identity is a passkey Face ID/Touch ID or a Hardware Key. It's all Crypto Kit, so there's no dependencies required.
To me, this clearly implies that there’s a server involved… Apple’s server. Am I wrong?
- evil-olive
> If you don't log into the app for months
> After 90 days of countdown, 21 days of warnings, and 14 days of grace, the envelope opens
vs
> it needs that company to still exist and be honest on the day it matters
> there's no company in the middle
which is it?
there's no middleman, but also I need to log in to your app regularly to avoid being declared dead?
- skeledrew
> there's no company in the middle
Yet this seems dependent on Apple's ecosystem. That's a company in the middle.