Privacy Policy
Last updated: September 08, 2026
Purcel Diet is a food and weight diary. This page says what the app records, why it records it, who else ever sees it, and how to take it back or delete it. It describes the app as it works today.
Who runs this
The app is run by Purcel Diet. Anything on this page can be asked about at the address at the bottom.
What the app records
Your account
Your email address and a password, stored only as a one-way hash — or, if you signed in with Apple, Google or Discord, the account identifier and the email that provider handed over. A name, a username and a profile photo if you set them. The app also keeps the times and IP addresses of your sign-ins, so a session that is not yours can be spotted.
Your body profile
Date of birth, sex, height, activity level and the goal you chose. These are the inputs to your calorie target: without them there is no number to compute.
Your diary
Every food you log — what it was, how much of it, which meal and which day. The foods you created yourself, your recipes, your saved meals, and the units you prefer to read them in.
Your weight
Every weight you record, the day it was measured, and where it came from: typed by you, or read from Apple Health.
Reports and corrections
If you say a food's numbers are wrong, or type what you read off the packet instead, that report and that correction are kept against your account — so one person is never counted twice when the app decides whether a stranger's food can be trusted.
Photographs you take of a packet
If you photograph a product or its nutrition label, the picture is stored against your account along with what it is a picture of. With photo sharing switched off — which is how the app ships — a photograph you take is shown to you and to nobody else, even on a product other people can look up. A photograph attached to a report is shown to the app's administrator, because that is the point of attaching it. Photographs outlive the account that took them: if you delete your account, a picture of a shared product stays with the product, with your name taken off it.
Text read off those photographs
Your phone reads the text on a label itself and sends the app what it read: the words, any barcode it saw, and which recogniser produced them. The picture is not sent anywhere to be read for you, and nothing is charged per photograph. The text is kept beside the picture so the figures can be re-read later by a better parser instead of asking you to photograph the packet again. Nothing read this way is saved as a food until you have checked the numbers and pressed Save.
What you write to us
The messages you send in the app's chat, and any photos you attach to them.
Your device
Which platform you open the app on, the app's version, the operating system's version, and — only if you turn notifications on — a push token for each device, plus a token for any Live Activity you start.
What you search for
The words you type into food search, how many results came back, which ones were shown, and which one you went on to log. It is recorded against your account and kept for as long as the account is, because it is the only way to tell whether search is finding the food you meant — nothing else can show what you wanted and did not get.
How the app is used
The app records its own page views — which page, when, the page you came from, any campaign parameters in the link, your browser and operating system, and a country. The country is looked up from your IP address against a database on our own server, and the address itself is masked before it is stored, with its last part dropped. There is no third-party analytics SDK, no advertising SDK and no tracking pixel anywhere in this app.
Where you came from
If you installed the app after tapping an ad, the App Store or Play Store tells the app which campaign it was. The campaign, its source and its medium are stored once against your account and never updated again.
Apple Health
iPhone only, and only if you switch it on. Both directions start off, and the app works completely with both left off.
Connected, the app reads four things from Health: your date of birth, your biological sex, your height, and your body-mass samples. It reads nothing else — not your heart rate, not your workouts, not your steps.
Turn on writing back as well and the app writes the energy, protein, carbohydrate, fat and fibre you logged into Health as dietary entries, so the Health app's Nutrition tab reflects your diary.
You can disconnect at any time in the app's settings. Disconnecting stops the sync and leaves the weights already imported where they are; deleting those is a separate action you choose. Taking the app's access to Health away entirely is done in the iOS Settings app — no app is allowed to do that for you.
What the app never does
Apple Health data
Data read from Apple Health is never used for advertising, for marketing, or for any other use-based data mining. It is never sold, rented, traded or otherwise disclosed to a third party — not to an advertiser, not to a data broker, not to an analytics provider, not to anyone.
It is used inside this app for two things and nothing else: filling in your body profile when you ask it to, and keeping your weight history current. Writing back, if you turn it on, puts what you logged into Health and sends it nowhere else.
Nothing here is sold. The app shows no ads, builds no advertising profile of you, and hands nothing to advertisers or data brokers.
Your diary, your weights and your health data are not used to train any machine-learning model.
Why the app records it
To work out your target and show you what is left of the day. To keep your history so you can look back at it. To keep you signed in and the account secure. To answer you when you write in. To see which parts of the app are actually used, so the next thing built is the right thing. And to meet legal obligations where they apply.
Legal bases
Where the GDPR applies: your account and your diary are processed to perform the contract you entered by creating them; keeping sign-ins secure and reading aggregate usage figures rest on legitimate interests; Apple Health, push notifications and anything else you switch on rest on your consent, which you withdraw by switching it back off.
Your weight, your body profile and anything read from Apple Health are health data — a special category — and they are processed on your explicit consent, which you give by entering or importing them and withdraw by deleting them or your account.
Who else ever sees it
The app leans on a small number of services to run. Each sees only what its job needs, and none of them may use it for anything else.
- Amazon S3 stores the images you upload — a profile photo, a photo in a chat message.
- A search engine we run holds whatever the app makes searchable — the food catalogue, including the name of any food you created, and, so that a support thread can be found again, the names, the email addresses and a 140-character preview of the last message in each chat. It holds no diary entries, no weights and no body profile.
- Sentry receives a report when something breaks. That report carries the request that failed, so it can include your IP address and which account was signed in.
- An email provider delivers confirmations, password resets and the link to your data export.
- Apple and Google deliver the push notifications you asked for.
- If you sign in with Apple, Google or Discord, that provider tells the app the account identifier and the email address you agreed to share.
Beyond these, nothing is disclosed unless the law requires it.
How long it is kept
Your account, your diary and your weights are kept until you delete them. Deleting your account removes them — the diary, the weights, the goals, your own foods, your recipes, your saved meals, your chat messages and your photos all go with it, along with everything else the account holds, and none of it is archived.
Page views that belong to nobody — a bot, a visit before you signed in — are deleted after 32 days. Page views recorded while you were signed in are kept for as long as your account is, because the activity history on your account is drawn from them; deleting your account deletes them too.
A data export you request is kept as a file for seven days, then deleted.
What you can do
- Download everything: Settings → Download your data gives you one file holding every section listed above.
- Delete everything: Settings → Delete account.
Where the GDPR or a comparable law applies you also have the right to correct what is wrong, to object to or restrict a use, and to complain to your data-protection authority. Write in and it will be handled.
Age
The app is for adults. It refuses to compute a calorie target for anyone under 18 and it is not directed at children. If a child's account exists, tell us and it will be deleted.
Changes
When this page changes, the date at the top changes with it. A material change will be said plainly rather than slipped in.
Contact
Questions about this policy, a request about your data, or anything else: dev@gg.md