Local encryption
Entries and attachments live in an AES-256 encrypted vault on your hard drive or device. Biometrics use the OS only — Face ID, fingerprint, Windows Hello.
Local-first · Court-ready
Your life, locked.
Your life, locked.
Your truth, eternal.
JournaLock is a tamper-evident encrypted journal for inventors, attorneys, executives, and anyone who needs records that hold up when it matters. Your vault stays on your device — no account required.
Get JournaLock
Saves Money?
How firms save money with JournaLock
Built for serious records
Not a social diary. A sealed vault for invention notes, matter timelines, executive journals, and personal evidence you may need years later.
Tamper-evident chain
Cryptographic hash chaining on your device (our network — not Bitcoin) plus DigiCert RFC 3161 when online. That is the clock. We do not use a coin.
You own the keys
No JournaLock user accounts. Optional AWS S3 backup and Stripe payments use credentials or checkout you initiate — we do not host your journal content.
Who it is for
Professionals who cannot afford “the cloud lost my notes.”
Inventors & founders
Document conception, diligence, and lab notes with a chain that supports patent and investor timelines.
Attorneys & counsel
Matter-aware journaling and optional link-up workflows without surrendering client content to a SaaS silo.
Executives & boards
Decision logs and CYA records you can export, seal, and keep under your own retention policy.
Anyone who needs proof
Personal journals that still feel like a product built for court — not for ads or engagement metrics.
How firms save money with JournaLock
Independent research note — not a sales guarantee. Case-by-case ranges for attorney hours and dollars when messy inventorship reconstruction is avoided, grounded in public billing data and AIPLA survey figures.
Listen to Grok (AI) on attorney time and cost
Typical operational mid-range: about 2–6 hours and roughly $800–$3,300 per matter that would otherwise require reconstruction — with larger expected-value upside if inventorship or priority fights are shortened or avoided. Ranges, not promises.
Saves Money?
How firms save money with JournaLock
On your platforms
Windows, Android, Mac, and iPhone — one product philosophy across devices.
Windows
Microsoft Store
Primary desktop release for Windows 10/11. Local vault, store listing, and optional Stripe upgrades.
Android
Google Play
Install from Google Play on phones and tablets. Package com.journalock.app.
Apple
Mac & iPhone
Live on the App Store (developer: JournaLock LLC). Prefer the official link so you don’t land on a similarly named app.
Privacy by architecture
We do not operate a journal content backend for the free local experience. What you write stays yours.
No content accounts
There is no JournaLock login that holds your diary. Uninstall and exports are under your control.
Optional services only
Stripe Checkout, AWS S3, and AI providers run only when you enable them and supply what they need.
Store-ready policy
Full policy for Microsoft Store, Google Play, and Apple reviews. Read the privacy policy.