Privacy
The short version. Green Days has no accounts, no cookies and no advertising. Unless you buy a shirt, it doesn't know who you are and has no way to find out. What you choose in the app (your market, how you eat, your basket) stays on your device, except when you ask for a recipe. The analytics we keep count what happens in the app, not who did it. If you do buy a shirt, your name, address and email go to the companies that take the payment and make and post the shirt, and nowhere else.
Who runs this
Green Days is made by Ryan Nance in Lisbon, Portugal, who is responsible for how your information is handled. Questions or requests: hello@greendays.day.
What stays on your device
The app saves a few things in your browser's local storage so it remembers you between visits: your market, how you eat and anything you avoid, your basket, recent recipes, a local grower if you picked one, whether you've finished the welcome screens, the date of your last visit, and the produce you asked to be reminded about. None of it is sent to us as a record of you. You can erase it at any time by clearing this site's data in your browser settings. In the iPhone app the same things are kept on your phone, and deleting the app erases them.
When you ask for a recipe
To write a recipe, the app sends our server your basket, your market, the date, how you eat, anything you avoid, and up to three things you've told it are already in your kitchen. Our server passes that to Anthropic, whose Claude model writes the recipe. The request carries no name, account or identifier. Identical requests on the same day may be answered from a short-lived cache so the same recipe isn't written twice. The iPhone app tells you this and asks before it sends your first recipe request.
What we count
The app reports simple events to our server: that it opened, which screen was shown, that a recipe was made, which produce page was viewed, that a button was tapped. Each event carries the market you're using and a random number that lives only as long as the page is open, so events from one visit can be grouped together. It is never stored on your device and it changes every time you reload. From your connection, our host adds the country you're visiting from. The first event of a visit also says whether this device has used Green Days before and how many days ago. We never record what you type into search, and our analytics don't record IP addresses.
These counts are kept in Cloudflare's Analytics Engine for no more than three months and are only ever read in aggregate.
Location, in the iPhone app
If you allow it, the Green Days app checks roughly where you are when you open it, so that when you travel it can offer that market's calendar. It asks for approximate location only, only while the app is open, never in the background. The app works out the country on your phone, from outlines it carries with it, and the location is never sent to us or anyone else. The website never asks for your location. You can turn this off at any time in your iPhone's Settings.
Notifications, in the iPhone app
If you allow them, the app schedules its notifications on your phone: the turning days of the market year, and produce you asked to hear about. They are worked out and delivered on your phone. No list of who gets them exists anywhere.
Reminders
"Remind me when it's back" gives you a calendar file for the month a season opens. It's made when you tap and nothing about it is stored. Once it's in your calendar, your calendar does the reminding.
If you buy a shirt
The shop at greendays.day/shop asks you for a language, a size and the country to ship to, so it can price the postage. When you pay, you leave greendays.day for a checkout page run by Stripe, which takes your name, email, phone number, delivery address and card. We never see your card number. Stripe uses its own cookies on that page to keep the payment secure and to catch fraud.
Once you've paid, our server passes your name, email, phone number, delivery address and the shirt you chose to Printful, which prints the shirt, posts it, and gives your address to the carrier delivering it. Printful may email you the tracking details.
We keep the record of your order (what you bought, what you paid, and where it went) in Stripe and Printful for as long as tax law requires us to keep sales records, and use it only to deliver your order and to sort out any problem with it. It isn't used for marketing, and nothing is added to a mailing list.
The shop's counts, like the app's, carry no person: the language, size and country of a purchase, and what it cost.
Services that see your connection
- Cloudflare hosts the site. Like any host it sees your IP address to deliver pages, briefly rate-limits recipe requests by IP, keeps short operational logs of requests, and measures page load speed with its cookieless Web Analytics. See Cloudflare's privacy policy.
- Anthropic writes recipes from the details listed above.
- Delivery partners. In some markets the app links to a produce delivery service through an affiliate network. If you follow that link, the partner's and the network's own policies apply from then on.
- Stripe takes payment for shirts, on its own checkout page. See Stripe's privacy policy.
- Printful prints and posts shirts. See Printful's privacy policy.
Your rights
Under the GDPR you can ask what we hold about you, and ask us to correct or delete it. Unless you have bought a shirt, Green Days keeps no record tied to you, so there is usually nothing to find, and what the app remembers lives on your device where you can clear it yourself. If you have bought a shirt, we can tell you what your order holds, correct it, or delete what tax law doesn't require us to keep. If you think something is wrong, write to the address above, or complain to the Portuguese data protection authority, the CNPD.
Changes
If what Green Days collects changes, this page changes first, and the date at the top moves with it.