Privacy Policy
The short version. WeighCamp stores your profile, cut plans, weigh-ins, food and training logs so you can use them on any device. Readings from Apple Health or Health Connect are read on your phone and are never sent to us. We do not sell your data, we do not show ads, and the app contains no advertising or analytics tracking. You can delete your account and everything in it from inside the app.
1. Who we are
WeighCamp is operated by Aaron Parry, trading as WeighCamp (“we”, “us”), based in England. WeighCamp is made by ARX Algorithms. We are the data controller for the personal data described here. Contact: [email protected].
2. What the app does
WeighCamp plans how combat athletes make weight for a fight. It checks whether a weight cut is safe, then gives a day-by-day plan for calories, macros, water, fight week and refuelling, and lets you log weigh-ins, food and training.
3. Data we collect and why
| Data | Why | Lawful basis (UK GDPR) |
|---|---|---|
| Account: email address, and an identifier from Apple or Google if you sign in with them | To create your account, sign you in and sync your data | Contract (Art. 6(1)(b)) |
| Profile: birth year, sex, height, preferred units | To calculate a safe plan and apply Youth mode for 13 to 17 year olds | Contract; explicit consent for health data (Art. 9(2)(a)) |
| Cut details: current and target weight, weigh-in date and type, the plan and verdict, progress ticks | To build and track your plan | Contract; explicit consent for health data |
| Weigh-ins, food log (food name, grams, calories, macros, fibre) and training log (type, minutes, effort) | To track progress against your plan | Contract; explicit consent for health data |
| Consent records (what you agreed to, which version and when) | To show we have your consent and when it was withdrawn | Legal obligation (Art. 6(1)(c)) |
| Parent's email address, a one-way hash of the approval code, and when it was sent and approved (Youth mode only) | To ask a parent or guardian to approve a plan for a 13 to 17 year old | Legitimate interests in protecting young athletes (Art. 6(1)(f)) |
| Purchase records: product, transaction ID, purchase and expiry dates, and an app user ID | To unlock Pro, honour trials and camp passes, restore purchases and handle refunds | Contract; legitimate interests in preventing fraud |
| Your email and message, if you contact support | To reply to you | Legitimate interests |
Weight, food, training and related information about your body is health data. We process it only with your explicit consent, which you give in the app before a plan is made. You can withdraw consent at any time by deleting your account; this does not affect processing that happened before.
4. Data that stays on your phone
If you allow it, WeighCamp reads resting heart rate, heart rate variability, sleep, weight and logged food from Apple Health (iPhone) or Health Connect (Android) to flag days that need a check. These readings are processed on your device and are not uploaded to our servers. WeighCamp never writes to Apple Health or Health Connect. Data obtained from Health Connect is used only for these in-app checks and is not used for advertising or sold. You can turn access off at any time in your phone's settings.
The camera is used only to scan food barcodes. Images are not stored or sent; only the barcode number is used for the lookup.
5. Who we share data with
| Provider | What for | Where |
|---|---|---|
| Supabase, Inc. | Database, sign-in and server functions | EU (Ireland) |
| RevenueCat, Inc. | Managing purchases and subscriptions | United States |
| Apple and Google | App Store and Google Play payments; Sign in with Apple and Google sign-in, if you use them | Under their own privacy policies |
| Resend, Inc. | Sending sign-in emails and parent approval emails | EU (Ireland) |
| Open Food Facts and USDA FoodData Central | Food search and barcode lookups. Only the search words or barcode are sent, never your name or account | France / United States |
We do not sell personal data, share it for advertising, or use it to train AI models. Transfers outside the UK are protected by the UK International Data Transfer Addendum or standard contractual clauses.
6. How long we keep data
Your account data is kept until you delete your account. Deleting your account removes your profile, cuts, weigh-ins, food and training logs, consents and parent approvals from our database. Backups roll off within 30 days. Purchase records are also kept by Apple, Google and RevenueCat for as long as they need for tax and fraud prevention. Support emails are deleted within 24 months.
7. Children
WeighCamp is not available to children under 13. 13 to 17 year olds can use Youth mode, which allows gradual weight loss only and requires a parent or guardian to approve the plan using a code sent to their email. If you believe a child under 13 has used WeighCamp, contact [email protected] and we will delete their data.
8. Your rights
Under UK GDPR you can ask to access, correct, delete or restrict your data, object to processing, receive a copy in a portable format, and withdraw consent. You can delete your account and all its data in the app (Settings, then Delete account), or see how to delete your account. For anything else, email [email protected]; we reply within one month. You can complain to the Information Commissioner's Office at ico.org.uk.
9. Security
Data is encrypted in transit and at rest. Each account can only read and write its own data, enforced in the database. Approval codes are stored only as a one-way hash.
10. Changes
If we change this policy we will update the version and date above and, for significant changes, tell you in the app before they take effect.