Most families are completely unprepared. Yours doesn't have to be.
When someone dies unexpectedly, their loved ones face a mountain of admin
at the worst possible time. Finding documents. Chasing accounts.
Guessing wishes. It doesn't have to be this way.
53%
of UK adults aged 50–64 have no will at all
75k
probate applications filed in England & Wales — every quarter (MoJ, 2025)
1 in 4
UK adults have low financial resilience (FCA, 2024)
"Behind every one of those numbers is a family navigating chaos
they didn't have to."
— Sudden, 2026
What is Sudden?
Your private digital vault.
Sudden is a calm, guided app where couples and families record
everything — legal documents, financial accounts, digital access,
children's arrangements, personal wishes — all in one
encrypted, private place.
A little at a time, done. Their partner already knows
where everything is. Their children are protected.
UK-registered · ICO registered
UK GDPR compliant
Zero-knowledge encryption
Sudden
Good evening,
Sarah & James
Readiness Score
6 of 9 modules complete67%
Legal
Money
Digital
Children
Property
Wishes
Simple & Guided
Nine structured modules walk you through every area of your life, step by step. No legal knowledge required. No overwhelm.
Private & Encrypted
Zero-knowledge encryption means even we can't read your data. AES-256 encryption before anything leaves your device.
Shared with Love
Choose exactly what your partner, family, or solicitor can see. Granular sharing controls. Nothing shared without your permission.
Explore the vault
Nine modules. Everything covered.
Tap any module to see exactly what it covers. Every area of your life, in one place.
"A little organisation now can spare your family months of uncertainty later."
Getting started
Ready at your pace. Set for a lifetime.
01
Create your account
Sign up in under 2 minutes. Tell us a little about your household — whether you have a partner, children, property. Sudden personalises your vault immediately.
2 minutes
02
Fill in your modules
Work through each module at your own pace. Legal. Money. Digital. Children. Property. Wishes. Each field has a plain-English explanation of why it matters. No jargon.
At your own pace
03
Invite your partner
Invite your partner, trusted family member, or solicitor. Choose exactly which sections they can access. They get their own secure login — no passwords shared.
5 minutes
04
Keep it current
Sudden reminds you when things might have changed — a new home, a new baby, a pension update. A quick annual check keeps everything accurate. Life changes, your vault keeps up.
Once a year
↑ Click a step to see it in the app
Sudden
Your privacy
Built for the most sensitive information.
Zero-knowledge encryption
Your data is encrypted on your device using AES-256-GCM before it ever reaches our servers. We store ciphertext only. We literally cannot read your information.
Biometric access
Face ID or fingerprint authentication. Your vault stays locked unless it's you opening it. After your first sign-in, your face or fingerprint unlocks it day to day.
Export at any time
On Core and above, generate a solicitor-ready, readable PDF of your vault information. PDFs aren't encrypted, so store and share them securely. Share it directly before an appointment. Your preparation, formatted professionally.
UK GDPR compliant
ICO registered. Built for UK families under UK law. No data sold, no ads, and no third-party access to your plaintext vault.
"We store ciphertext only. We cannot read your data."
This isn't a marketing promise. It's a technical fact. Your vault key is derived from your password on your device and stored securely there. We never hold a readable copy of it.
256
bit encryption
Sharing & access
You decide who sees what.
Granular sharing controls mean you can give your partner access to finances
but keep your personal letters private. Or share everything with your solicitor
for one appointment.
Nothing is ever shared without a deliberate choice from you.
You can change access permissions at any time.
Partner access — choose which modules they can see
Solicitor export — one-click professional PDF
Emergency access — trusted person activated after a waiting period
Revoke or change access at any time, from anywhere
Sharing Controls
James can see:
Legal documents
Will, LPA, executor details
Financial accounts
Bank accounts, investments, pensions
Digital access
Email, social, subscriptions
Personal letters
Letters left for loved ones
Tap any row to toggle access
The reason it matters
"You're not doing this for yourself.
You're doing this for the people
you love — so that when the worst happens,
they don't have to wonder."
Sudden isn't about death. It's about love, preparation,
and giving the people who matter most the gift of clarity
at the hardest moment of their lives.
No legal knowledge needed
Go at your own pace
Private forever
Update anytime
Take the first step
Your family deserves to be ready.
Join the early access list and be first to get organised.
A little at a time. Peace of mind forever.