Last updated: 4 September 2026

1. Introduction

Stamina Technologies Ltd (“Stamina”, “we”, “us” or “our”) respects your privacy and is committed to protecting your personal information.

This Privacy Policy explains what information we collect when you use the Stamina mobile application, website and related services (together, the “Services”), where that information comes from, why we use it, who we may share it with, how long we keep it, and the rights you have in relation to it.

Stamina Technologies Ltd is the controller of your personal data.

Stamina Technologies Ltd
Company number: 15933953
7-9 Ingate Pl, Nine Elms
London, SW8 3NS
United Kingdom

For privacy questions or requests, contact us at support@heystamina.com.

2. Information We Collect

Depending on how you use Stamina, we may collect the following categories of information.

Account and contact information

This includes information such as your name, email address, account identifiers and other information you provide when creating or managing your Stamina account.

We use this information to create and manage your account, communicate with you, provide customer support and operate the Services.

Training, activity and performance information

This may include information such as:

• training plans and planned workouts;

• completed workouts and workout history;

• training frequency, duration, volume and consistency;

• race goals, target times and performance outcomes;

• sport type, pace, power, cadence, distance and elevation;

• information you enter directly into Stamina; and

• information received from third-party services you choose to connect to Stamina, such as Garmin or Strava.

Where you choose to connect a third-party service, we receive only the categories of information made available through that integration and authorised by you.

Health and fitness information

Depending on the services and devices you connect, Stamina may also receive fitness or physiological information such as heart rate and other health or fitness metrics.

Some of this information may constitute special category health data under applicable data protection law. Where processing requires explicit consent, we will process this information on the basis of that consent and you may withdraw your consent at any time.

We do not use sensitive physiological or health information such as heart rate, recovery information or similar health indicators to create public-facing research, marketing or social-media insights unless we have an appropriate lawful basis and, where required, your explicit consent.

Technical and usage information

We may automatically collect information about how you access and use Stamina, including device information, operating system, IP address, log information, app interactions, feature usage, crash information and similar technical data.

We use this information to operate, secure, troubleshoot and improve Stamina and to understand how our Services are used.

Payment and subscription information

If you purchase a subscription, payments are generally processed through third-party payment providers such as the Apple App Store, Google Play or other payment processors.

We may receive information about your subscription status, transaction, plan and payment history, but we do not receive or store your full payment-card details when they are processed directly by those providers.

3. Where We Get Your Information

We collect personal information:

• directly from you when you create an account, configure your training, set goals, contact us or otherwise provide information to Stamina;

• automatically when you use our Services; and

• from services and devices you choose to connect to Stamina, such as Garmin, Strava and other supported fitness platforms.

Connecting a third-party service is optional. You can disconnect supported integrations at any time, although doing so may affect features that depend on that integration.

Third-party platforms process information under their own privacy policies and terms in addition to this Privacy Policy.

4. How and Why We Use Your Information

We use personal information only where we have a lawful basis for doing so.

• Providing and operating Stamina
  We use account, training, activity and performance information to create training plans, record workouts and provide Stamina’s core training features.
  Lawful basis: Performance of our contract with you.

• Personalising your Stamina experience and training recommendations
  We use training, activity, goals and performance information to personalise your experience and recommendations.
  Lawful basis: Performance of our contract with you and, where appropriate, our legitimate interests.

• Processing health information where it constitutes special category data
  We may process relevant health and fitness information where necessary to provide certain features.
  Lawful basis: An applicable Article 6 lawful basis and, where required, explicit consent under Article 9.

• Improving Stamina and developing the Services
  We use usage, technical and training information to understand how Stamina is used, improve functionality, develop new features and analyse product performance.
  Lawful basis: Our legitimate interests in improving and developing our Services.

• Producing aggregated research and training insights
  We may use training behaviour, plan adherence, workout frequency, consistency, race goals and performance outcomes to identify patterns and produce aggregated research and educational insights.
  Lawful basis: Our legitimate interests in researching endurance training, improving Stamina and producing educational insights.

• Keeping Stamina secure and preventing fraud or abuse
  We use account, technical and usage information to protect our Services, detect fraud, prevent abuse and investigate technical or security issues.
  Lawful basis: Our legitimate interests and, where applicable, legal obligations.

• Providing customer support and service communications
  We use account, contact and relevant usage information to answer questions, resolve problems and send important service-related communications.
  Lawful basis: Performance of our contract with you and our legitimate interests.

• Sending marketing communications
  We may use contact information to send product updates, promotions, events and similar optional communications.
  Lawful basis: Consent where required.

• Complying with legal and regulatory obligations
  We may process information where necessary to comply with law, regulation, court orders or other legal processes, or to establish, exercise or defend legal rights.
  Lawful basis: Legal obligation or legitimate interests.

Where we rely on legitimate interests, we consider whether the processing is necessary for the relevant purpose and balance our interests against your rights, interests and reasonable expectations.

5. Aggregated Research and Training Insights

One of the ways we use Stamina data is to better understand patterns in endurance training and athletic performance.

We may analyse training, activity and performance information such as:

• training-plan adherence;

• workout completion;

• workout frequency and training volume;

• training consistency;

• race goals; and

• performance outcomes.

For example, we may analyse data across thousands of athletes to understand whether athletes who train more consistently tend to perform differently from athletes whose training is less consistent.

This analysis may initially involve personal information within Stamina's secure systems. We use appropriate technical and organisational measures to limit access to that information and use only the information reasonably necessary for the analysis.

We may use the aggregated or anonymised results of this analysis for research, education, product development and marketing purposes. This may include publishing statistics, charts, findings or other insights through Stamina's website, application, social-media accounts, marketing materials, creators or ambassadors, and other public communications.

We do not publish individual athletes' personal information as part of these insights.

Before results are shared publicly or with creators or ambassadors, we aggregate or anonymise them so that individual athletes cannot reasonably be identified. Creators and ambassadors producing content for Stamina do not receive the underlying identifiable athlete-level dataset for this purpose.

We may combine information originating from different permitted sources when conducting this analysis, subject to the terms governing those sources.

6. Automated Personalisation

Stamina uses software and automated systems to analyse training information and provide personalised features, plans, recommendations and performance insights.

These systems may use information such as your training history, goals, completed workouts and other relevant training information.

We do not use automated decision-making to make decisions about you that produce legal effects or similarly significant effects of the kind regulated by data protection law.

If we materially change how we use automated systems or introduce processing for which additional consent or transparency is required, we will update this Privacy Policy and provide any additional notices or controls required by law.

7. Anonymised and Aggregated Information

We may create aggregated or anonymised information from information collected through the Services.

Information is considered anonymised only where individuals can no longer reasonably be identified from it.

Once information has been genuinely anonymised so that it is no longer personal data, we may use and retain it for purposes including analytics, research, product development, educational content, business analysis and public insights.

We do not attempt to re-identify information that has been anonymised.

8. How We Share Information

We do not sell your personal data.

We may share personal information with service providers that help us operate Stamina. These providers process information only for the relevant service and subject to appropriate contractual and security protections.

These may include providers of:

• cloud infrastructure and data storage, such as AWS;

• product and usage analytics, such as PostHog and Google Analytics;

• subscription and payment processing, such as app stores and payment providers;

• customer support and communications;

• security and fraud prevention; and

• advertising and marketing analytics, such as Meta, TikTok, Google Ads and Apple Search Ads.

We may also share information with our professional advisers, such as lawyers, accountants, insurers and auditors, where reasonably necessary.

We may disclose information where required by law, regulation, court order or another valid legal process, or where reasonably necessary to establish, exercise or defend legal rights.

If Stamina is involved in a merger, acquisition, financing, restructuring, sale of assets or similar corporate transaction, information may be disclosed to relevant parties as part of that process subject to appropriate confidentiality protections.

We may share aggregated or anonymised information with partners, researchers, creators, ambassadors, media organisations or the public where that information does not identify individual users.

9. Connected Services

If you choose to connect Stamina with a third-party service such as Garmin or Strava, you authorise information to be exchanged between Stamina and that service according to the permissions you grant.

We process information obtained through connected services in accordance with:

• this Privacy Policy;

• the permissions and choices you provide;

• applicable data protection law; and

• the contractual requirements applicable to the relevant integration.

Different connected services may impose different restrictions on how information received from them can be used. Stamina respects those restrictions.

Garmin's agreement with Stamina, for example, requires Stamina to provide users with appropriate privacy information and to process personal information received through Garmin consistently with applicable notices, consents and lawful bases.

10. International Transfers

Stamina is based in the United Kingdom, but some of our service providers and connected platforms may process information outside the United Kingdom or European Economic Area.

Where personal information is transferred internationally, we use appropriate safeguards where required by law. These may include adequacy regulations, the UK International Data Transfer Agreement, the UK Addendum to the EU Standard Contractual Clauses, Standard Contractual Clauses or other legally recognised transfer mechanisms.

11. How Long We Keep Information

We retain personal information only for as long as reasonably necessary for the purposes for which it was collected, including providing the Services and meeting legal, accounting, security and regulatory requirements.

Account and training information is generally retained while your account remains active.

If you delete your Stamina account using the in-app account deletion functionality, we will delete or anonymise personal information associated with your account without undue delay and generally within 30 days, unless we are required or permitted to retain particular information for longer.

Financial and transaction records may be retained for up to six years where required for legal, tax or accounting purposes.

Backup copies may remain temporarily within secure backup systems until they are overwritten in accordance with our normal backup cycles.

Aggregated or genuinely anonymised information that no longer identifies you may be retained indefinitely.

12. Security

We use appropriate technical and organisational measures designed to protect personal information against unauthorised access, alteration, disclosure, loss or destruction.

These measures include encryption in transit, access controls and restrictions on access to personal information.

No electronic system or method of transmission is completely secure, and we cannot guarantee absolute security.

13. Your Data Protection Rights

Depending on applicable law and the circumstances, you may have the right to request access to the personal information we hold about you; correct inaccurate or incomplete information; request deletion; restrict certain processing; receive certain information in a portable format; object to processing based on legitimate interests; and withdraw consent where processing is based on consent.

Withdrawing consent does not affect the lawfulness of processing carried out before the withdrawal.

You may delete your Stamina account through the application where that functionality is available.

To exercise any of your rights, contact support@heystamina.com. We may need to verify your identity before completing a request.

You also have the right to lodge a complaint with the UK Information Commissioner's Office (ICO) if you believe your personal information has been handled unlawfully. You can find information about making a complaint at the ICO's website.

14. Marketing

Where permitted by law, we may send you product updates, news, promotions, event information or other marketing communications.

Where consent is required, we will only send such communications with your consent.

You can unsubscribe from marketing emails using the unsubscribe link included in the message or by contacting us.

Service-related messages, such as important account, subscription, security or operational communications, are not marketing communications and may still be sent where necessary to provide the Services.

15. Cookies, Analytics and Advertising Technologies

Our website and Services may use cookies, software development kits, pixels and similar technologies for purposes including authentication, security, analytics, measuring product usage and, where applicable, advertising measurement.

Where required by law, non-essential cookies or similar technologies will only be used after you have provided the relevant consent.

You can manage applicable choices through the cookie or privacy controls we make available.

16. Children's Privacy

Stamina is not intended for children under the age of 18, and we do not knowingly collect personal information from children under 18.

If we learn that we have collected personal information from a child contrary to this policy, we will take appropriate steps to delete it.

If you believe a child has provided personal information to Stamina, please contact support@heystamina.com.

17. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes to our Services, technology, legal requirements or how we process personal information.

When we make material changes, we will take reasonable steps to bring them to your attention before the new processing begins where required by law.

The date at the top of this Privacy Policy shows when it was most recently updated.

Continuing to use Stamina after a Privacy Policy update does not constitute consent to processing where data protection law requires us to obtain consent separately.

18. Contact Us

If you have questions about this Privacy Policy, want to exercise your data protection rights, or have concerns about how Stamina handles personal information, contact:

Stamina Technologies Ltd
7-9 Ingate Pl, Nine Elms
London, SW8 3NS
United Kingdom

Email: support@heystamina.com