Get into the beta.
Prevon is invite-only right now. Redeem your code and you're in — every platform, the full app, before anyone else.
1. Apply
Free. Not everyone gets in.
2. Get accepted
You get an acceptance email with your code.
3. Pay $29, test it
Use it & report bugs. Everything stays on your device.
Only charged if you're accepted. Single Stripe payment. No subscription, no card on file.
Finish the beta and encrypted sync, cloud backup and sharing are yours permanently — normally $4 a month, for testers never. Sync itself stays switched off during the beta and turns on when it ships; the grant does not expire in the meantime.
Redeem your invite
Paste the code from your email. Each code works once.
What you're actually getting
Ghost Sync, free for life.
Ghost Sync normally runs $4 a month, indefinitely. Complete the beta and yours is free for good — encrypted sync, encrypted backup, and sharing, for as long as Prevon exists.
Sync across every device, for life
Write on your laptop, read it on your phone. Ghost Sync carries the same encrypted vault to every device you own — and it is yours free, permanently. Not a trial, not a year: $4 a month is the list price, and you pay it never. Devices you add in five years are covered too.
Encrypted cloud backup — 100 GB
Your vault, backed up off your device, encrypted before it leaves. 100 GB is included — room for roughly 100 million notes. Write one a minute, nonstop, and it would take you about 190 years to fill. It is yours to use, not a number you will ever see the end of.
Sharing, the moment it ships
The same grant covers sharing a note with someone else, end-to-end encrypted and revocable. The cryptography is built; the interface is not switched on yet. Your access is locked in now and turns on for you when it flips — you will not pay again to get it.
The grant is earned, not given.
Four weeks of real testing — a weekly in-app check-in, notes you would actually keep, and bug reports as you hit them. You keep the beta build either way. The lifetime upgrade is what the four weeks buy.
How the program works
Why $29 once actually works
“Lifetime for $29” sounds like a promise someone walks back in a year. Here's the actual math.
Your seat
The beta app, every platform Prevon ships — Windows, macOS, Linux, Android, iOS — the on-device AI, and a direct line to the founder for whatever you find. The seat is yours the moment you redeem. Install, enter your 12-word Recovery Seed, start writing. Everything stays on your device.
The work
Three small things, every week, for as long as the beta runs. A one-line check-in inside the app. Real notes written in the vault — not just installs and abandoned trials. Bugs filed in-app the moment something gets in your way. No essays, no calls, no surveys. A couple of minutes a week.
Where the $29 goes
Straight into hardening the vault: the security work, the audit we have not commissioned yet, and the hours that go into reading and acting on what 500 testers find. You are not buying a discount. You are funding the part that has to be right before anyone trusts this with real notes.
No monthly bill
Checkout is a single Stripe payment. There's no subscription, no card on file after you pay, and nothing recurring waiting for you later — ever.
No code yet?
Apply free. We'll email you if you're picked.
We open the beta in small waves so we can actually read the feedback. One email when your turn comes.
Already applied? Sit tight — we'll reach you if you're picked.
Beta FAQ
Beta questions
I don’t have a code yet. What now?
Drop your email below — it’s free to apply. Not everyone gets in: we pick people who’ll actually use the app and report bugs. Seats open in small batches, and we send exactly one message, the day you’re accepted.
Does the beta sync between my devices?
Not yet — sync is deliberately switched off for this private beta, so your notes have no path off the device you write them on. That is the point: the beta runs with the smallest possible attack surface while we harden the vault. Your lifetime Ghost Sync is unaffected — it is locked in by finishing the four weeks, and switches on for you when sync ships.
What exactly is the lifetime Ghost Sync grant?
Ghost Sync — encrypted sync across your devices, encrypted cloud backup, and note sharing — free for life instead of the usual $4 a month. It attaches to the account you redeem with, it does not expire, and it covers every device you add later. Four completed beta weeks is what earns it.
Is the 100 GB something I’ll hit?
No. 100 GB of encrypted storage holds about 100 million notes. To fill it you would have to write a note every minute, without stopping, for roughly 190 years. Use it as much as you like — it is effectively unlimited for anything a person actually writes.
My code says “invalid.” What should I check?
Codes are case-insensitive and trim whitespace. Double-check the full string — they look like PREVON-BETA-XXXX. If it still fails, email [email protected] and we’ll sort it out.
What does the $29 cover?
It’s only charged once you’re accepted. It buys your beta seat — the beta app on every platform, the on-device AI, and a direct line to the founder — and, once you complete the four weeks, lifetime Ghost Sync: encrypted sync, backup and sharing, free forever instead of $4 a month. Checkout is one Stripe payment — no subscription, no card on file after you pay.
What counts as testing?
Three things, every week, for as long as the beta runs: answer a one-line check-in inside the app, write notes in the vault you would actually want to keep, and report bugs the moment you hit them — also from inside the app. The whole job is a couple of minutes a week.
What if I pay and stop showing up?
You keep the build on every device you installed it on, and it keeps working — the app never depends on us. What you don’t keep is the lifetime Ghost Sync upgrade: that is earned by finishing the four weeks. The seat itself is non-refundable, and we’d rather say that up front than pretend otherwise.
How long does the beta run?
Four weeks, starting the day you redeem. Four weekly check-ins, four weeks of real notes, and bug reports as you go. Complete those four weeks and your lifetime Ghost Sync is locked in permanently.
Will I ever be charged again?
No. There’s no subscription, no card on file, and no future bill waiting for you. Paid products will exist later, but nothing about this seat turns into a recurring charge — you pay $29, once.
Can I install it on more than one device?
The seat is yours to install on every device you own. For this beta each install is a separate local vault, because syncing between them is switched off. Enter your 12-word Recovery Seed on each device you set up.
I redeemed and never got the download email.
Check spam and promotions first. If it hasn’t arrived in 10 minutes, email [email protected] with the address your invite was sent to and we’ll resend it.
Stuck?
A real person reads every message.
Code not working, checkout stuck, or just want to ask before you commit — write directly to the founder. Most messages get a same-day reply.
Email [email protected]