Privacy Policy
Effective date: [EFFECTIVE DATE]
1. Who we are
Calorie-Wise (the website at calorie-wise.com and the Calorie-Wise mobile app, together "the Service") is operated by Xentra Health, a division of Maynard Procurement Solutions Ltd, a company registered in England and Wales, number 08753201, registered office P O Box 8, Wilmslow, Cheshire, United Kingdom ("we", "us").
We are the data controller for your personal data. We are registered with the Information Commissioner's Office (ICO) under number [ICO REGISTRATION NUMBER].
Contact us about privacy at info@xentrahealth.com.
2. Data we collect
| Category | Examples | Where it comes from |
|---|---|---|
| Account data | Name, email address, password (stored only as a secure hash), country, preferred currency | You, at sign-up |
| Subscription data | Plan, trial start and end dates, renewal date, auto-renewal setting, payment status | You and our payment provider |
| Payment data | Card type, last four digits and expiry date only. We never see or store full card numbers | Our payment provider |
| Usage and log data | Meals, foods, drinks, portion sizes, calorie and nutrient entries, water, exercise, favourites | You, as you use the Service |
| Meal and label photos, and descriptions | Photos and typed or dictated descriptions you choose to submit for analysis. We keep a small thumbnail of a meal photo, never the full image or its location data. If you dictate, your phone turns speech into text; we receive only the text | You, optionally |
| Health data | Weight, height, age, sex, activity level, dietary goals, alcohol intake, medication and doses (such as GLP-1 medicines), supplements, symptoms, hunger, fullness and cravings, and any health conditions or dietary needs you choose to enter. This includes data you import from Apple Health | You, optionally |
| Anonymous research data | Only if you tick "Share my anonymous research data": weekly summaries such as age band, sex, country, BMI band, percentage weight change, GLP-1 medicine and dose, GhrelinX use and how often it is taken, average calories and protein, hunger, cravings and symptoms recorded. No name, email, exact age, height, weight, photos or location (see section 4) | The app, with your consent |
| Website visit data | The page visited, the website you came from, your country and device type (mobile, tablet or desktop). We don't use cookies for this and don't store your IP address | Your browser, automatically |
| Consent records | What you agreed to, the exact wording shown, and when | You |
| Device and technical data | Device type, operating system, app version, IP address, crash reports | Your device, automatically |
| Communications | Support messages, and records of the emails and in-app notices we send you | You and us |
3. How we use your data and our lawful basis
| Purpose | Lawful basis |
|---|---|
| Creating and running your account, providing the Service | Contract |
| Analysing photos, labels and descriptions you submit to estimate food, portions and nutrients | Contract and, for health data, explicit consent |
| Taking payment, running the free trial and renewals | Contract |
| Sending service messages: trial ending, renewal reminders, payment failures, lapse warnings | Contract and legal obligation (consumer law notices) |
| Processing health data to calculate targets and insights | Explicit consent |
| Keeping the Service secure, preventing fraud and abuse (including repeat free trials), fixing faults | Legitimate interests |
| Keeping financial and tax records | Legal obligation |
| Marketing emails about weight-loss tips and offers on Xentra Health's supplements | Consent (opt-in, unsubscribe at any time) |
| Anonymous research data, to measure progress (including with GLP-1 medicines and GhrelinX), improve the Service and produce research (section 4) | Explicit consent, given by ticking a separate, optional box |
| Counting website visits and app download clicks, to understand how people find us | Legitimate interests (no cookies, no IP address stored) |
| Sending a trial invitation you have asked for or agreed to | Consent |
Service messages are not marketing. You will receive them even if you opt out of marketing, because they concern your contract with us.
We never use your health data, medication, supplement, symptom or appetite records to decide who receives marketing, and we never send them to advertisers.
We do not make decisions about you based solely on automated processing that have legal or similarly significant effects. Food estimates produced by artificial intelligence are shown to you to check and correct before they are saved.
4. Anonymous research data (optional)
You can choose to share anonymous research data with us. It is entirely optional and off unless you tick the box "Share my anonymous research data" at sign-up or in your account. The Service works the same whether or not you share. If you don't tick it, we don't collect any of your data for research.
- What is collected: once a week the app sends a summary: your age band (for example 45-54), sex, country, body mass index band, percentage weight change since you started, how many weeks you have tracked, whether you record a GLP-1 medicine and which one and what dose, whether you record GhrelinX and how often you confirm taking it, your average calories, protein, water, exercise and alcohol, your hunger and craving scores, and which symptoms you recorded.
- What is never collected for research: your name, email address, account details, exact age or date of birth, height, exact weight, photos, food descriptions, notes or precise location.
- How it is protected: the summaries are stored under a random code, not your account. Only our server can link that code to your account, using a secret key kept separately, and it does so only to delete your research data if you ask. Because that link exists, the law treats this data as pseudonymised personal data and special category health data, so we protect it in the same way as the rest of your health data and only process it with your explicit consent.
- How we use it: to measure the progress people make, in particular people using GLP-1 medicines and GhrelinX, to improve the Service, and to produce research and reports. We only ever look at or report figures for groups of at least 5 people. We will not publish, sell or share anything that identifies you.
- Third parties: we will only share research figures with others in combined form for groups of at least 5 people. We will never pass data that identifies you to a third party without separate, specific consent naming that third party.
- Changing your mind: untick the box in your account at any time. We stop collecting straight away and delete the research data you have already given. Combined figures already published cannot identify anyone, so they cannot be withdrawn.
5. Who we share data with
We use trusted service providers who process data only on our instructions, under written contracts:
| Provider | Role |
|---|---|
| Stripe | Payments made on our website |
| Vercel | Website hosting |
| Supabase | Database hosting and sign-in |
| Resend | Sending service emails |
| Anthropic (Claude) | Analysing the meal photos, label photos and descriptions you choose to submit, to estimate foods, portions and nutrients. Under our agreement, Anthropic does not use this content to train its models |
| [PUSH NOTIFICATION PROVIDER] | Sending in-app and push notifications, when the mobile app launches |
| Apple (App Store) and Google (Google Play) | Only if we offer in-app subscriptions in future. Their own privacy policies apply to those payments |
We may also disclose data where the law requires it, or to protect our legal rights. If our business is sold, your data may transfer to the new owner, who must honour this policy.
6. How long we keep your data
| Situation | What happens |
|---|---|
| Active subscription or trial | We keep your data while your account is active |
| Subscription lapses (payment fails or you do not renew) | Your account enters a 14-day grace period. We remind you daily by email and in the app, and you can renew or export your data at any time during it |
| Grace period ends without renewal | We permanently delete your logs and health data within 30 days, and warn you 7 days before. We keep your email address and a record of the closed account for 12 months, to handle queries and prevent misuse of free trials |
| Trial ends without subscribing | Same as a lapse: 14-day grace period, then deletion |
| You withdraw consent for health data | We delete your health data, and any research data, straight away |
| You switch off research sharing | We delete the research data you have given straight away |
| Website visit data | Kept for 24 months, then deleted |
| You delete your account | We delete your data within 30 days |
| Consent records | Kept while your account exists and for 12 months after it closes, as evidence of what you agreed to |
| Financial records | Kept for 6 years, as tax law requires |
| Backups | Deleted data drops out of encrypted backups within 35 days |
We warn you clearly before any deletion and always give you the chance to download your data first.
7. Your rights
You have the right to:
- access your data, and get a copy of it;
- export it in a common machine-readable format (data portability). Use "Download my data" in your account for an instant JSON export; the app also offers CSV files;
- correct inaccurate data;
- delete your data. Use "Delete my account" in your account;
- restrict or object to some processing, including any based on our legitimate interests;
- withdraw consent at any time, for health data, research data or marketing, without affecting processing already done.
Email info@xentrahealth.com for anything you can't do in your account. We reply within one month and do not normally charge. If your request is complex we may extend this by up to two further months, and we will tell you why within the first month.
If you are unhappy with how we handle your data, you can complain to the Information Commissioner's Office at ico.org.uk or on 0303 123 1113. We would appreciate the chance to put things right first.
8. Other important information
International transfers. Our data is stored in the United Kingdom (London). Some providers may process data outside the UK, for example in the United States. Where they do, we use UK-approved safeguards such as the International Data Transfer Agreement, the UK Addendum to the EU Standard Contractual Clauses, or UK adequacy regulations, including the UK-US data bridge where a provider is certified.
Users outside the UK. If you live in the European Union, Australia or the United States, you may have additional rights under your local law. Nothing in this policy takes those away. Contact us to use them.
Security. Data is encrypted in transit and at rest, passwords are hashed, each user can only ever access their own records, and staff access is limited to those who need it. If a breach is likely to put you at risk, we will tell you and the ICO as the law requires.
Children. The Service is for people aged 18 and over. We do not knowingly collect data from children. If we learn that we have, we delete it.
Cookies and visit counting. Our website uses only storage that is essential to sign-in and payment. We do not use advertising or tracking cookies. We count visits without cookies and without storing anything on your device: our server records the page, the website you came from, your country and device type, and a one-way code made from your connection details and a secret that changes every day, so we can count unique visitors per day but cannot recognise you on another day or identify you. Your IP address is not stored. If your browser sends a Do Not Track or Global Privacy Control signal, we don't count your visit. If we add optional analytics in future, we will ask for your consent first through a cookie banner.
Changes. We will notify you by email and in the app at least 30 days before any significant change to this policy takes effect.
Calorie-Wise is provided by Xentra Health, a division of Maynard Procurement Solutions Ltd. Registered in England and Wales, company number 08753201. VAT number GB174 691576. Terms and Conditions