One page, in plain words, because a thing that asks for admin rights and a card number owes you that. If anything here and the rest of the site disagree, this page wins.
A key, not a program. The script is public; the key is what makes it run on your PC.
OmniDx Tune is $19.99, paid once, for a key that runs the tune on one PC for as long as you own it: as many times as you like, after every Windows update, free. Squad is $39.99, paid once, for three keys, one PC each: one for you, two to give away. A key locks to the first PC that runs it; a second PC on the same key is refused.
Not for resale, not for a shop of "PC optimisation" clients, not for sharing beyond the PCs it covers. A refunded key stops working; the settings it made stay until you undo them. The script itself is readable by anyone, on purpose, and reading it needs no key.
Windows 10 and Windows 11, on a PC you own or are allowed to administer. Not a work laptop somebody else manages, not a school machine, not a PC where a game's or a tournament's rules forbid changing system settings. It changes only Windows' own settings and never a game's files, but the rules you play under are yours to keep.
OmniDx is one person, named on the trust page, selling through Square. The support address is at the bottom of every page and in the key email; replies come from the same person who wrote the script.
Paid once through Square. Nothing renews. There is no account to close.
Square takes the payment; the card details go to Square and never to us. The moment Square confirms the payment the key is issued and sent to the email you typed at checkout, and shown on the page Square sends you to. Prices are in US dollars; your bank sets any conversion.
Within fourteen days of paying, reply to the key email or write to the support address with your Square receipt, and the money goes back the way it came; the bank decides how many days that takes. The key stops working when the refund goes through. Run undo first if you like; the refund does not depend on it, and a tuned PC keeps its settings and its undo either way.
Write anyway. A key that never worked on your PC, or a PC that the tune genuinely broke and undo did not fix, is refunded whenever it happened. "I got fewer frames than I hoped" inside the fourteen days is a refund; after them it is a conversation, and usually the BIOS checklist.
A key moves to a new PC from the key page by yourself, with your order or receipt number, at a sensible interval; more often than that is a support email, answered the same day. A new board or a fresh Windows on the same board counts as the same PC.
The full list. There is no analytics script on this site and no tracking cookie.
Square passes us the order id, the short receipt number, the email address you typed at checkout and the amount. That is how the key is issued, emailed, found again from your receipt, and refunded. We never see the card.
When the script runs it sends the key and a fingerprint of the PC: a hash of the board serial, the system id and the CPU id, which identifies the machine without describing it. With it go the CPU and GPU names, the Windows build and the script version, so your own machines can be told apart on the key page. Nothing else leaves the PC: the report, the logs, the backups and the undo stay in C:\OmniDx.
Your key, once issued, is remembered in your own browser so the key page can show it again, and so is the light-or-dark choice; both are on your device, not ours. The star rating at the foot of the page, if you use it, sends the stars, your note and a random id for the device so one device counts once. No analytics, no advertising pixels, no cookies from anyone else.
The licence table (keys, orders, the checkout email, the machine fingerprints) is a Cloudflare database; the site is on GitHub Pages; the key and refund emails go through Resend. The licence row is kept for as long as the key is meant to work, which is as long as you own the PC. Ask and it is deleted, which switches the key off. Support emails are kept while they are needed to help you and then no longer.
Your rights, without the form: ask what is held against your order or key and it is sent to you; ask for it to be deleted and it is; ask for the key to be moved or the email on file changed and it is. The support address does all three.
It changes settings. That is the product. Here is the shape of the responsibility.
Startup apps, services, scheduled tasks, preinstalled apps, telemetry switches, the power plan, network and scheduler settings, visual effects, and per-game profiles, every one listed with its reason on the what-it-touches page. It runs as administrator because those settings need it. It makes a System Restore point and an undo file first, and it never touches Defender, the firewall, Secure Boot, your drivers or your files.
That the script does what this site says and nothing more; that every change has an undo; that the copy your command fetches is the exact one that passed the published checks; that a key you paid for works on your PC or your money comes back. Frame rates are not promised: they depend on the game, the hardware and the BIOS, and the report is honest about that.
Backing up what matters before changing a PC, reading the report, doing the BIOS checklist or not, and deciding whether Extreme is for you. The tune asks before anything that costs a convenience, and undo puts it all back, but you are the administrator of your own machine.
OmniDx Tune is provided as described on this site; beyond the refund, our liability for any loss arising from its use is limited to the amount you paid, as far as the law where you live allows, and nothing here takes away rights that law gives you. If a court finds one part of this page unenforceable, the rest stands.
The date at the top moves when it changes, and the changelog says what changed. A change never reaches back to take away a refund you were entitled to when you paid.
Questions about any of it: