ExponentialJoy
Private by design

Your Data, Protected
with Exponential Joy

An encrypted file vault, end-to-end-style encrypted messaging, and per-user encryption keys — for individuals and teams who take data privacy seriously.

Whether it's just you or your whole team — your files, messages, and keys stay yours.

Everything you need to keep your data private

Secure Sign-In

Breach-checked, rate-limited passwords, Microsoft sign-in, and one active session at a time — plus optional two-factor authentication.

Per-User Key Management

Generate your own RSA key pair. Your private key is encrypted at rest, with a verification step that confirms the encryption actually happened — no plaintext keys, ever.

Encrypted File Vault

Upload files that are encrypted at rest with AES-256 and stored securely. Everything in your vault is scoped to you — only you can open your files.

End-to-End-Style Encrypted Messaging

Messages are sealed with RSA-4096 envelope encryption and signed, so only the recipient can read them — and they can confirm the message really came from you.

Cloud File Integrations

Bring in files from Microsoft OneDrive and Google Drive — connect the storage you already use.

Tamper-Evident Audit Log

Every file and message event is written to a hash-chained, cryptographically signed log — one you can verify yourself, any time, at /audit/verify.

Plans that scale from individuals to enterprises

Starter
1 – 10 Users
$2,500 / year
1 TB Storage Included
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Growth
11 – 50 Users
$10,000 / year
2 TB Storage Included
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Enterprise
101 – 500 Users
$50,000 / year
5 TB Storage Included
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Enterprise Plus
501 – 1,000 Users
$75,000 / year
10 TB Storage Included
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Unlimited
Over 1,000 Users
$150,000 / year
15 TB Storage Included
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Additional Storage

$50

per additional terabyte per month, over your plan's included storage limit.

Per-User Fee

$19.99

per user per month, billed in accordance with the number of users licensed under your plan.

Ready to experience ExponentialJoy?

Join the people and teams who trust ExponentialJoy with their most sensitive data.

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