Everything Si Forte does
Keep the information your people would need in secure vaults, and choose exactly when it reaches them: after a period without a check-in, on a date, or when you decide.
Three ways to unlock
Every vault has its own recipients and its own rules. Mix them to cover the short term and the long term.
Persistent Vault
- How it unlocks
- Unlocks after a period without a check-in that you choose, from hours to months.
- Best for
- Long-term protection: passwords, instructions and messages for the people who would need them.
Spark Vault
- How it unlocks
- Unlocks after the number of hours without a check-in that you set, and switches itself off 48 hours after you activate it.
- Best for
- Short-term cover: surgery, a first date, a solo hike.
Time Capsule
- How it unlocks
- Unlocks on a date you choose.
- Best for
- Birthdays, anniversaries and messages for the future.
Unlock rules per vault
Each vault has its own timing, so a Spark Vault for tomorrow's surgery doesn't change your long-term plans.
A personal message
Add a note that goes out with the unlock email, explaining why your recipients are getting access.
Lock and unlock any time
You stay in control on the website or in the app, and can release or relock a vault yourself.
Early access with a PIN
Optionally set a 6-digit PIN so a recipient can open a vault before it unlocks, if you share it with them.
Store what matters
Add as many assets to a vault as you need. Upload files, or record audio and video messages right in your browser.
- Passwords
- Notes
- Letters
- Documents
- Photos
- Audio
- Video
- Websites
- Crypto wallets
- Keys and codes
Storage: Free has none (text-based assets only), Basic includes 200 MB (no video), Pro includes 2 GB with video. Add 1 GB more any time. Compare plans
Private by design
Your vaults hold sensitive things, so they're protected at every step: stored, shared and accessed.
Encrypted at rest
What you store in your vaults is encrypted with AES-256 before it's saved.
Private media storage
Files are kept in private storage, never on a public web address. They're only served through signed links that expire after two hours.
Personal access links
Each recipient gets their own link, and it only works once the vault has been released. Recipients sign in with a free account to open it.
Short-lived, scoped tokens
API tokens can be limited to reading, creating, updating or deleting, and can be set to expire. AI assistant connections use tokens that last 12 hours and refresh.
Assistants never see contents
Connected AI assistants can see vault details, never what's inside your vaults, and they can't delete anything or change recipients.
You can revoke access
Delete an API token or disconnect an assistant in Settings at any time. It stops working straight away.
Check in your way
Persistent and Spark vaults wait for a check-in. Each one resets their timers, wherever it comes from.
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Website
Signing in counts as a check-in.
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Mobile app
Opening the Si Forte app, or anything you do in it, checks you in.
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API
Check in from your own automations with a single request.
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AI assistant
Tell Claude "I'm OK" and it checks you in.
Wherever you are
The API and AI assistants are included with paid plans. The new Si Forte app for iPhone and Android is on its way.
All of Si Forte, in your pocket
A new app for iPhone and Android with everything the website does: create and manage vaults, add assets and record audio or video, choose recipients and unlock rules, and check in with a tap. Subscribe or add extras with in-app purchases.
Get the current appBuild your own check-ins
A simple API with personal tokens: check in, list your vaults, lock or unlock them, and ask the support assistant. Tokens can be scoped and set to expire.
Read the API docsSi Forte in Claude
Connect Claude, or any assistant that supports MCP, with a secure sign-in. Ask about your vaults, check in, or, when you can't get to the app, release a vault with your AI unlock PIN. Every release waits 10 minutes and emails you a link to cancel.
Get help connectingHelp centre and AI support
Search the help centre, or ask the support assistant, which answers from our guides. Still stuck? Log a ticket and we'll reply by email.
Visit supportStart free
Spark Vaults and shared vault access are free forever. Upgrade when you need Persistent Vaults, file storage, the app or AI assistants.
See pricing