1Win Sports

Version 1.1.0 · Android package com.bodycalc.health2148
Last updated 9 October 2026 · Effective 9 October 2026

Every line above is expanded below. Section 5 is the one worth reading closely.

1. Introduction

This Privacy Policy explains how 1Win Sports ("the app", "we", "us") handles information when you use the app. It covers what data the app processes, where that data is stored, which third parties receive data, why we process it, how long we keep it, and the rights you have over it.

1Win Sports is a free health calculator for Body Mass Index, daily calorie needs, body fat percentage, ideal weight, water intake and macronutrients, together with a personal weight journal. It is an informational tool, not a medical device.

By installing and using the app you confirm that you have read this Policy. If you do not agree with it, please do not use the app and uninstall it.

2. Summary

• Your health and body data (weight, height, age, sex, measurements, weigh-ins, goals, saved results) never leaves your device.
• We do not ask you to create an account and we do not collect your name, email address, phone number or precise location.
• The app uses one third-party service, OneSignal, for push notifications. It receives technical identifiers and three low-detail values: your device language, your SIM country code, and a counter showing how many times you passed the start screen.
• We do not sell your data, we do not use it for advertising, and we do not build advertising profiles.
• You can switch notifications off at any time and you can erase everything with one action inside the app.

3. Data that stays on your device

The following is processed locally, on your device only, and is never transmitted to us or to anyone else:

• Profile data: weight, height, age, sex, target weight, unit preference (kg/cm or lb/ft).
• Body measurements you type into the calculators: neck, waist, hip, exercise minutes.
• Calculation results: BMI, calorie targets, body fat estimate, ideal weight ranges, water intake, macronutrient splits.
• Your weight journal: every weigh-in with its value and date.
• Saved history entries and app settings, including reminder time.

This data is stored in the app's private storage, which other apps cannot read. We have no server that holds it, no backup of it, and no way to recover it. Uninstalling the app deletes it permanently.

4. Start screen and this Policy

Each time you open the app, a start screen is shown with a link to this Policy. Tapping "Start" opens this document in a Chrome Custom Tab, an in-app browser window. When you close that window and return to the app, the app stores a counter on your device recording how many times you have passed the start screen, and sends that counter to OneSignal as the value po_ac.

The counter is a number only. It contains nothing about you, about your health data, or about what you read.

5. Third-party service: OneSignal (push notifications)

We use OneSignal, Inc. to deliver push notifications and in-app messages. To make delivery and basic targeting possible, the OneSignal SDK transmits the following to OneSignal's servers:

a) Identifiers it creates itself

A push subscription token issued by Google Firebase Cloud Messaging, and a random OneSignal subscription ID. These identify the installation, not you as a person.

b) Values the app sets deliberately, and only these three

• device_lang — your device's language code, for example "en", "fr", "es".
• sim_country — the two-letter country code of your mobile carrier, falling back to your mobile network country or your device region if no SIM is present, for example "FR". This is a country code only. It is not your phone number, not your carrier account and not a position.
• po_ac — the start-screen counter described in section 4.

c) Technical data the OneSignal SDK collects automatically

Device model and manufacturer, Android version, app version, SDK version, time zone, language and country reported by the system, notification permission status, session timestamps, and whether a notification or message was received, displayed, tapped or dismissed. We do not control this list; it is defined by OneSignal.

OneSignal processes this data as our service provider and under its own privacy policy, available at onesignal.com/privacy_policy. OneSignal is based in the United States, so this data is transferred outside the European Economic Area. The transfer relies on the Standard Contractual Clauses adopted by the European Commission.

6. Why we process this data

• To run the calculators and the weight journal: performance of the service you requested. Processed on device only.
• To deliver push notifications and in-app messages: your consent, given through the Android notification permission dialog and the "Tips & news" switch in Settings. You may withdraw it at any time.
• To send notifications in a language and a region that make sense for you (device_lang, sim_country): the same consent.
• To record that the start screen was passed (po_ac): our legitimate interest in being able to show that the Policy was presented before the app was used.
• To keep the app working and diagnose faults: our legitimate interest in a functioning product.

We do not carry out automated decision-making or profiling that produces legal effects for you.

7. Permissions the app requests

• INTERNET and network state: used exclusively for push notifications and in-app messages. The calculators work fully offline.
• POST_NOTIFICATIONS (Android 13 and later): asked for so notifications can be shown. You may refuse, and the app keeps working.
• SCHEDULE_EXACT_ALARM / RECEIVE_BOOT_COMPLETED: used only to re-arm your local weigh-in reminder after a restart.

The app does not request access to your camera, microphone, GPS or network location, contacts, call logs, SMS, files, photos, health platforms or accounts, and it does not read your advertising ID.

8. Local weigh-in reminder

The optional daily reminder is scheduled by Android on your device. It does not use OneSignal and does not require an internet connection. Switching it off in Settings cancels it immediately.

9. Data retention

• On-device data: kept until you delete the entry, use "Delete my data", clear the app's storage, or uninstall the app.
• OneSignal data: kept while the installation remains subscribed. OneSignal deletes inactive subscription records according to its own retention schedule. Using "Delete my data" removes the three values listed in section 5(b) from your OneSignal record and unsubscribes you.

10. Data sharing

We do not sell, rent or trade your data. We do not share it with advertising networks, data brokers or analytics companies. The only recipient is OneSignal, in the role of our processor, as described in section 5. We may disclose information if required by law, by a court order, or by a lawful request from a competent authority.

11. Your rights

Depending on where you live, you may have the right to access your data, to correct it, to have it erased, to restrict or object to its processing, to data portability, and to withdraw consent at any time. Residents of California may additionally request information about data categories collected and may opt out of any "sale" or "sharing" of personal information. We carry out neither.

You can exercise the most important of these rights yourself, immediately and without contacting us:

• Settings › "Tips & news": turn off to stop all transmission to OneSignal.
• Settings › "Delete my data": permanently erases your weigh-ins, saved calculations and profile from this device, removes your tags from OneSignal and disables notifications.
• Android system settings › Apps › 1Win Sports › Notifications: revoke the notification permission.
• Uninstalling the app removes all local data.

For any other request, contact us using the address in section 16. We answer within 30 days. You also have the right to lodge a complaint with your national data protection authority.

12. Children

The app is not directed at children under 13, or under the minimum age set by the law of your country. We do not knowingly process data from children. If you believe a child has used the app and provided data, contact us and we will help remove it.

13. Security

Local data is held in the app's private storage, isolated by Android from other applications. All communication with OneSignal uses encrypted HTTPS connections. No method of storage or transmission is completely secure, and we cannot guarantee absolute security. A rooted or compromised device in particular weakens these protections.

14. Medical disclaimer

The app provides statistical estimates based on published formulas. It does not diagnose, treat, cure or prevent any condition, and it is not a substitute for professional medical, nutritional or fitness advice. Always consult a qualified healthcare professional before changing your diet, your training or your medication.

15. Changes to this Policy

We may update this Policy when the app changes or when the law requires it. The new version is published at this address and the "Last updated" date at the top is revised. Material changes affecting how we use your data will be announced inside the app before they take effect. Continuing to use the app after a change means you accept the updated Policy.

16. Contact

Questions, requests or complaints about this Policy or about your data:

[email protected]

You may also reach us through the "Developer contact" section of the app's listing on Google Play.