The Prevon beta
Get into the beta.
1. Apply
Free. Not everyone gets in.
2. Get accepted
You get an acceptance email with your code.
3. Redeem it, free
No payment. Use it & report bugs. Your notes stay on your device in this build (AI model files are downloaded from huggingface.co).
Testing costs nothing
Redeeming your code, installing on the available platforms, and using the app is free for every accepted tester. There is no payment step for testing, and the beta itself is not for sale.
Earned: Founder Lifetime
Testers who actually use the app and report real bugs earn a code for a Founder Lifetime invite to Ghost Cloud. What it covers is still to be announced. It is not sold without one. Details below.
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.
Redeem your invite
Came from the link in your acceptance email? Your code is already filled in below. Otherwise, paste it in by hand. Your download links appear on the next page right away; an email is optional.
Earned, not sold
Earned by testing. Scope to be announced.
You can't sign up for Founder Lifetime — you earn your way in. Finish four real weeks of testing, and the founder personally emails you a single-use code. These are planned terms and may change; Ghost Cloud is not available in the current build, and how Founder Lifetime maps onto Ghost Cloud passes has not been confirmed. That code, not this page, is what unlocks checkout: this section just explains what you'd be getting, on its own dedicated page once you have it.
- Scope
- To be announced. Not yet confirmed against Ghost Cloud passes.
- Storage
- No storage size is promised. Ghost Cloud meters a monthly write allowance, not stored bytes.
- Price
- Charged once at checkout, only after you earn a code. Final terms to be announced.
- Seats
- Invite-only, earned by testers who actually used the app and reported bugs. The seat limit is not final.
- Ownership
- A one-time payment; no further charge for the plan while it is offered, subject to our Terms.
What you're actually getting
Founder Lifetime, scope to be announced.
Ghost Cloud has not launched and its paid plans are not final. The only way to get a Founder Lifetime invite is to finish four real weeks of testing and earn a code. Testing itself costs nothing, and the code is not sold.
Sync across your devices, once it ships
Write on your laptop, read it on your phone. Ghost Sync is meant to carry the same encrypted vault to every device you own. How your invite maps onto Ghost Cloud passes is to be announced. “Lifetime” is defined below, and sync is not available yet.
Ghost Backup, once it ships
A sealed copy of your vault on our relay, encrypted before it leaves your device. Your device stays the master copy: a relay copy expires 90 days after its last write unless it is refreshed, and reading, restoring, exporting and deleting never stop. Ghost Cloud meters a monthly write allowance, not stored bytes, so no storage size is promised.
Sharing, the moment it ships
Ghost Sharing, for sending a note to someone else, is not launched and is switched off in current builds. Whether and how your invite covers it is to be announced.
Earned by testing, not by paying.
Four weeks of real testing — a weekly check-in, notes you would actually keep, and bug reports as you hit them — earns an invite to Founder Lifetime (scope to be announced; checkout has a 60-day refund window) plus a limited-edition tester icon, both free. Full details above. Either way, you keep full access to the beta build regardless.
How the program works
Why Founder Lifetime works this way
Testing is free. Here's what the Founder Lifetime invite actually is, and why it's not sold without one.
Your beta access
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. Free the moment you redeem your code. Install, enter your 12-word Recovery Seed, start writing. In this build your notes stay on your device.
The work that earns the invite
Three small things, every week, for as long as the beta runs. A one-line check-in. 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 — finish four weeks of it and an invite to Founder Lifetime plus a limited-edition tester icon are yours, free.
One payment, when you’re ready
Once you have your code, redeeming it takes you straight to a single one-time $49 Stripe payment. What it covers inside Ghost Cloud is still to be announced. No subscription and no card kept on file after you pay. Testing itself was never a bill to begin with.
Beta FAQ
Beta questions
Do I have to pay to test the beta?
No. Redeeming your invite code is free, installing on every platform is free, and using the app is free. There is no payment step anywhere in that path. The one thing that does cost money — a Founder Lifetime payment — is not sold directly; it has to be earned first. See the next few 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. Invites open in small batches, and we send exactly one message, the day you’re accepted.
Do you need my email to redeem a code?
No. Paste your code and your downloads appear right on this page — no account. An email is optional when you redeem (add it only if you want a copy sent to you), and we hold one if you apply for the beta without a code, to send your acceptance. It is not linked to your vault or your notes.
Does the beta sync between my devices?
Not yet — sync is deliberately switched off for this private beta, so the app does not sync your notes off the device you write them on. The beta runs with a smaller attack surface while we harden the vault. Ghost Cloud has not launched; how a Founder Lifetime invite applies when it does is to be announced.
What exactly is the Founder Lifetime invite, and how do I get it?
An invite to a one-time Founder Lifetime payment toward Ghost Cloud (Ghost Sync, Ghost Backup and Ghost Sharing, none of which has launched). How it maps onto Ghost Cloud passes has not been confirmed and will be announced. The way to earn a code is to finish four real weeks of testing (a weekly check-in, real notes, and bug reports). It is not sold without one. Once you have your code, redeem it any time at /founder-lifetime.
What is the limited-edition tester icon?
A beta-exclusive app icon that isn’t sold — it’s earned by completing the four weeks of real testing (the check-ins, the real notes, the bug reports). It ships alongside your Founder Lifetime invite as a second reward for the same work.
Why can’t I just pay right now?
Apple forbids distributing a TestFlight beta in exchange for payment of any kind, so nothing on this page can be a purchase you make to test. Checkout only exists behind a real, single-use code — and codes are earned by actually testing. Once you’ve earned it, redeeming is immediate; there’s no separate waiting period on top of that.
How much can I store?
No storage size is promised. Ghost Cloud, once it launches, meters a monthly write allowance (a pass covers at most 24 bundles, about 258 MiB of writes a month), not stored bytes. A relay copy expires 90 days after its last write unless refreshed. Your device is the master copy, and reading, restoring, exporting and deleting never stop.
My code says “invalid.” What should I check?
Codes are case-insensitive and trim whitespace. Double-check the full string — personal codes are 8 characters, letters and numbers, like 7f3a9c21, and a shared code is typed exactly as you were given it. If it still fails, email [email protected] and we’ll sort it out.
When do I actually pay, and is it refundable?
As soon as you have your code — redeem it at /founder-lifetime and you’re sent straight to checkout. It’s a single $49 Stripe payment, no subscription, no card kept on file, with a 60-day refund window from your payment date. Email [email protected] to request one.
What counts as testing?
Three things, every week, for as long as the beta runs: answer a one-line check-in, write notes in the vault you would actually want to keep, and report bugs the moment you hit them — from inside the app (Report a problem) or by email. The whole job is a couple of minutes a week.
What if I stop showing up?
You keep the build on every device you installed it on, and it keeps working — the app does not depend on us and was not something you paid for. What you don’t get is the Founder Lifetime invite or the limited-edition icon — both are earned by finishing the four weeks, and neither is sold instead.
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 the founder emails you a Founder Lifetime code plus the limited-edition icon — redeemable immediately.
What exactly does “lifetime” mean?
The lifetime of the Ghost Cloud service, not of you, for as long as we offer it. Our Terms say the service may change or be discontinued. It doesn’t cover major new modules added later — those may cost extra.
Does the beta ever go online?
Your notes stay on your device. The app does download its AI model files (the voice model is about 44 MB, chat models are larger) from huggingface.co, which can see your IP address and the file requested; Air-Gap Mode stops that. Android builds that Google Play generates include Google’s own licence check, so they will not start on a phone without Google Play. With Ghost Sync turned on (it is off by default) the app also fetches a small safety-switch file from our relay. No analytics, ads or crash reporting are included. There has been no independent security audit yet.
Can I install it on more than one device?
Your beta access is yours to install on every device you own, free. 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.
My platform says “Coming soon.”
That build isn’t ready to download yet. Come back to this page on the same device — it updates by itself when the link goes live. If a platform you need stays “Coming soon” for long, write to [email protected] and say which one.
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]