Privacy Policy

Last update: Oct. 8, 2026

Our commitment:

FLX is built on transparency. We collect only what we need to make the app work for you, we never sell your data, and we are clear about how we use it. This document explains exactly what we collect, why, how we use it, and what your rights are, with no small letters.

1. Who We Are

FLX ("we," "us," "our") is a fitness tracking application that combines workout logging with AI-powered recommendations. This Privacy Policy applies to all users of the FLX mobile application and any associated services.

For privacy-related inquiries, contact us at: privacy@getflx.app

2. What Data We Collect

We collect the following categories of personal data when you use FLX:

2.1 Account Information

• Full name and email address
• Authentication data (including third-party sign-in via Apple or Google)
• Profile photo (if provided)
• Location and timezone (if provided)
• Account preferences and settings

2.2 Fitness and Workout Data

• Exercise logs, including exercises performed, sets, reps, weight, and duration
• Workout history and session timestamps
• User-created and AI-generated fitness routines
• Available training equipment (e.g., gym machines, home setup)

2.3 Personal Goals and Preferences

• Fitness goals and target metrics
• Training preferences and frequency
• Self-reported fitness level

2.4 Health and Physical Information

We collect the following health and body-related data to calculate appropriate training loads and personalize your experience:

• Age or date of birth
• Sex or gender
• Body weight (optional)
• Height (optional)

This information is used to improve the relevance and safety of AI recommendations. We also record the broad age range you fall in (for example, 25 to 34) in our analytics and AI quality tools, to understand how well our plans work for different age groups. Your exact age, your sex, your body weight, and your height are never sent to analytics, and this information is never shared with third parties for any other purpose.

2.5 Conversation History

Messages exchanged with the FLX AI coach feature

This data is stored to personalize future recommendations and ensure the AI has context about your training history, goals, and limitations. It is never used to identify you to third parties or for advertising purposes.

2.6 Analytics Data

Our analytics provider receives:

• How you use the app: the screens you open, the features you use, and the actions you take, such as starting or finishing a workout
• The training settings you choose, such as your goal, your fitness level, and how many days you train
• Your subscription events, such as starting a trial, subscribing, renewing, or cancelling, with the plan, its price, the store, the purchase identifiers, the paywall you bought from, and your country
• Delivery events for the emails we send you, such as whether an email was delivered or bounced, and which of our pages you opened from it
• Your device type, operating system, and app version
• Your network address (IP address), from which it estimates your approximate location, such as your country and city

This data is linked to your FLX account and your email address, so it is not anonymous. Analytics never receives your exact age (only a broad range, see Section 2.4), your sex, your body weight, or your height. We use this data to improve FLX and to choose which news and offers we send you (see Section 3).

2.7 Technical Data

• Device type and operating system
• App version
• Crash reports and error logs (used exclusively to fix bugs and improve stability)

3. How We Use Your Data

Your data is used exclusively for the following purposes:

• To create and manage your FLX account
• To provide personalized workout tracking and AI-driven recommendations
• To power the conversational AI coach feature
• To improve the accuracy and relevance of suggestions over time based on your history
• To analyze how FLX is used, so we can improve the product
• To communicate with you about your account, updates, or support requests
• To send you news about FLX and offers by email, chosen based on how you use the app. You can opt out at any time through the unsubscribe link in any of these emails or by writing to privacy@getflx.app
• To comply with applicable legal obligations

We do not use your data for third-party advertising. We do not sell your data to any third party. Ever.

4. AI Features and Your Data

FLX uses Anthropic's Claude API to power its AI coach and recommendation features. When you interact with the AI chat or receive AI-generated recommendations, relevant portions of your workout history, goals, and conversation history are processed by Anthropic's systems to generate responses.

What this means for you:

Anthropic processes this data solely to generate AI responses within FLX. Your data is not used to train or fine-tune any AI model, by FLX or by Anthropic, through this Service.

Anthropic's own privacy policy governs how they handle data processed through their API. We encourage you to review it at anthropic.com/privacy.

FLX stores your conversation history securely in our own systems. It is never shared with other users.

5. Data Storage and Security

Your data is stored using Supabase, a trusted cloud infrastructure provider with industry-standard security practices including encryption at rest and in transit.

We implement the following security measures:

• Encrypted data storage and transmission (TLS/SSL)
• Access controls limiting who within FLX can access user data
• Regular security reviews and monitoring for unauthorized access

While we take reasonable steps to protect your data, no system is entirely immune to security risks. In the event of a data breach that affects your personal information, we will notify you and applicable regulatory authorities as required by law.

6. Third-Party Services

FLX uses a limited number of third-party services to operate. These include services for data storage and authentication, AI features and AI quality monitoring, payments, app usage analytics, email delivery, crash reporting, and push notifications.

We never share your personal data with a third party for that party's own marketing, and we only share data with these providers to the extent necessary to provide the Service and for the uses described in this Policy.

7. Cookies and Tracking

FLX is a mobile application and does not use browser cookies. We use a mobile analytics tool that collects usage data linked to your account, as described in Section 2.6.

8. Your Rights

FLX recognizes your rights as a user to your collected information. Depending on your jurisdiction, these rights may include access, correction, and deletion of your personal data. We handle all requests manually. To submit a request, contact us at privacy@getflx.app. We will respond within 30 days.

9. Data Retention

We retain your personal data for as long as your account is active. Specific retention practices:

• Account and fitness data: retained until account deletion.
• Conversation history: retained for the lifetime of your account. Conversation history is not separately deletable. Deleting your account deletes your conversation history.
• Analytics data: retained while your account exists and deleted when your account is deleted.
• Billing records: retained for the period required by applicable law (typically 5 to 7 years).

When you delete your account, your data enters a 7-day grace period during which you can restore the account and cancel the deletion. After the grace period ends, your personal data is permanently deleted, except for limited records we are legally required to keep (such as billing records). Deleting only the FLX app from your device does not delete your account or your data. To delete your data, you must delete your account from within the App.

10. Eligibility

FLX is available exclusively to users who are 18 years of age or older. We do not knowingly collect personal data from individuals under 18.

If you believe a person under 18 has provided personal data to FLX, contact us at privacy@getflx.app and we will promptly investigate and delete the data.

11. International Data Transfers

FLX is offered in the United States and select Latin American countries. Your data may be stored and processed in countries outside your own, including where our infrastructure providers operate. We ensure that appropriate safeguards are in place for international data transfers in accordance with applicable law.

12. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or applicable law. We will notify you of material changes via in-app notification or email at least 14 days before changes take effect. The "Last updated" date at the top of this document reflects the most recent revision. Continued use of FLX after changes take effect constitutes acceptance of the updated Policy.

13. Contact

For any privacy-related questions, requests, or complaints:

Email: privacy@getflx.app