SweatheartsPrivacy Policy
Last updated: 17 October 2026
Sweathearts (“Sweathearts”, “we”, “us”) is a strength and nutrition app for you and your training partner, published by Nanopulse. This policy explains what we collect, why, and the choices you have. We built Sweathearts to track your training — not you. We do not sell your data, and we do not use it for advertising.
The short version: your account and training data are stored securely and tied to your account. We use it to make the app work and to sync between your iPhone and Apple Watch. We never sell it or share it with advertisers, and you can delete it at any time.
1. Information we collect
Account information
When you create an account we collect your email address and an encrypted password (or the identifier from your chosen sign-in provider). This is used to authenticate you and sync your data across your devices.
Training and nutrition data
You provide this as you use the app. It may include:
- Workouts, exercises, sets, weights and reps
- Body metrics such as weight and your goals
- Meals, food entries and macronutrient totals
- Water intake and hydration targets
- Streaks, personal records and progress history
- Your chosen theme and app preferences
Health & fitness data (HealthKit)
With your explicit permission, Sweathearts reads from and writes to Apple Health. During a workout we may record heart rate, active energy and the workout session itself so your training appears in the Health app. Data obtained through HealthKit is used only to provide app features. We never use HealthKit data for advertising or marketing, and we never sell it or share it with third parties. It is not used for any purpose other than health and fitness, and it stays on your device and in your synced account only.
Location
With your permission, Sweathearts uses your location to measure the distance of runs, walks, hikes and rides, and to find trails and parks near you when you set a shared quest. The route of an outdoor workout is saved to Apple Health with the workout, not to our servers. For a quest we keep only the name of the place you chose, never your coordinates.
Photos
If you add progress photos, they are stored in your account so you can see them on your devices. They are never shared with your partner unless you choose to, and never with anyone else.
Usage and diagnostic information
We collect basic technical information (such as crash logs and app version) and simple usage events (for example, which screens are opened and whether a sync succeeded) to keep the app stable and to improve it. These do not include the contents of your workouts or meals, and are never used for advertising.
Notifications
If you allow notifications, we store your device's notification token so we can send you reminders and messages from your partner.
2. How we use your information
- To provide, sync and secure the app across your devices
- To calculate targets, streaks, trends and progress
- To let you and your training partner share sessions and streaks
- To respond to support requests you send us
- To diagnose and fix problems
3. Sharing between partners
Sweathearts is designed for two people. If you link with a training partner, certain information — such as your sessions, streaks and progress — is visible to them by design. Only share with someone you trust.
4. How your information is stored and protected
Your data is stored on secure, industry-standard cloud infrastructure and transmitted over encrypted connections. Access is restricted and protected by per-account security rules so that only you (and a partner you've linked with, where applicable) can access your data. During workouts the app stores data on your device first and syncs when possible, so a lost signal never blocks you.
5. Sharing with third parties
We do not sell your personal information. We do not share it with advertisers or data brokers. We use a small number of service providers strictly to operate the app — for example, cloud hosting and authentication — and they may process data only on our behalf and under contract. Apple Health data is never shared with any third party.
AI features
Meal ideas, food swaps, food estimates, the weekly digest and generated meal plans are written by outside AI services, Groq and Google Gemini. The app asks for your permission the first time you use one of these features, and you can turn them off at any time in Settings. When they are on, we send these services only what a request needs: food names, meal details and preferences (such as allergens), and the day's calorie, protein and water totals that you logged in Sweathearts. We never send your name, email address, workouts or any Apple Health data, and the providers process this data only to answer the request. When the features are off, nothing is sent and meal plans are made on your phone.
6. Data retention
We keep your data for as long as your account is active. When you delete your account, we permanently delete your associated personal data, except where we are required to retain limited records to comply with the law.
7. Your rights and choices
- Access & correction: you can view and edit your data in the app at any time.
- Deletion: you can delete your account and data from within the app, or via our Delete Account page.
- HealthKit: you can revoke Health permissions at any time in the iOS Settings → Privacy & Security → Health.
- Depending on where you live, you may have additional rights under laws such as the GDPR or CCPA. Contact us to exercise them.
8. Children
Sweathearts is not directed to children under 13 (or the minimum age required in your country). We do not knowingly collect data from children.
9. Changes to this policy
We may update this policy from time to time. We'll revise the “Last updated” date above and, for material changes, notify you in the app.
10. Contact us
Questions about your privacy? Email us at support@nanopulselabs.com or visit our Support page.