Who this is between
These terms govern your use of Day One, an Ardenholt program operated by Ruzylo Cloud, LLC ("we", "us"). Using Day One means you agree to them.
The service
Day One is software provided as-is. We work to keep it running and useful, but we offer no uptime guarantee and no warranty of fitness for a particular purpose, except where the law requires one.
Not medical advice
Day One counts days. It is not medical advice, diagnosis, or treatment, and it is not a medical device. Talk to your clinician before you start, stop, or change any treatment, and never set aside professional advice because of something you read here.
If you may be having a medical emergency, call 911 — or your local emergency number — now. Heavy daily drinking can make stopping suddenly dangerous; shaking, sweating, confusion or a seizure are emergencies, not setbacks.
What you pay, and what that buys
Day One is free to download. The complete program runs for seven days without a card, a free core stays useful after that for as long as you keep the app, and the full program is one payment of $19.99.
There is no subscription and no tier. Nothing renews, nothing lapses, and nothing has to be stopped later. The purchase covers the releases that follow it, for as long as Day One keeps counting.
- Free to download, on every platform it ships to.
- Seven full days of the complete program, no card asked.
- A free core that stays useful forever, unpaid.
- One payment of $19.99 — the whole program, permanently.
- Thirty days, money back, no reasons needed.
The thirty-day guarantee
Thirty days, money back, on every platform, with no exceptions and no reasons asked. This is a term of the program, not a courtesy we may withdraw.
Bought from us: write to [email protected] and the payment comes back. Bought through Apple: Apple handles refunds at reportaproblem.apple.com under its own policy — and if Apple declines inside our thirty days, write to us and we make it right ourselves.
Your count is unaffected either way, because it was never anywhere but your device.
Buying on iOS, buying on the web
An in-app purchase on iOS is a one-time unlock, not a subscription: there is no auto-renewal, no renewal charge, and nothing to switch off afterwards. Apple takes the payment and issues the receipt under its own terms.
A purchase made on the web unlocks the same app: sign in, or paste the key from your receipt. Either route flips the same switch, and buying on one platform never obliges you to buy again on the other.
Your account, if you ever make one
You do not need an account to use Day One. The seven-day trial and the free core ask for nothing at all.
An account exists to prove what you own. It holds your email address and your license keys — never your entries, your dates, or your count. Your data never leaves your device; your account holds your licenses, never your life. We run no server holding your count, which means we cannot read it, restore it, or hand it to anyone who asks.
If you do make one, keep your sign-in link and any key private, and tell us at [email protected] if you believe either has been misused.
Acceptable use
- Do not use Day One to harm anyone.
- Do not break, probe, or reverse-engineer the service, except where the law permits it.
- Do not use it for spam, harassment, or anything illegal.
Ending it
You can stop using Day One whenever you like: delete the app and nothing of yours is left behind on our side, because nothing of yours was there. We may suspend access if we reasonably believe these terms are being broken, with notice where that is feasible.
Liability
To the maximum extent the law permits, our aggregate liability for any claim arising from your use of Day One is limited to what you paid us in the twelve months before the claim, or $50, whichever is greater.
Governing law
These terms are governed by the laws of the State of Delaware, USA, and disputes will be resolved in the state and federal courts located there.
Changes
If we make a material change we will update this sheet and the effective date at its head, and write once to anyone on the register. Continuing to use Day One after a change means you accept it.
Contact
[email protected] — Ruzylo Cloud, LLC, Thousand Oaks, California.