RunnerStrength

Who We Are

RunnerStrength is a fitness tracking app for iPhone, developed and published by Nuke Submarine, based in the United Kingdom. If you have any questions about this privacy policy, please contact us at nuke@nukesubmarine.com.

Data We Collect

RunnerStrength does not collect any personal data on our servers. The following information is stored locally on your device and optionally in your personal iCloud account only:

• •Your name, age, biological sex, weight, and height (entered during onboarding)
• •Your running sessions (distance, duration, pace, route coordinates)
• •Your strength training sessions (exercise, sets, reps, weight)
• •Your weekly workout plan
• •Your app preferences (theme, units, notifications)
• •Your trial start date and purchase status

All of this data is stored using Apple's UserDefaults system and optionally synced to your personal iCloud Key-Value Store. It is never transmitted to us or any third party.

Data We Do Not Collect

We do not collect any of the following:

• •Your email address or any contact information
• •Your location or IP address (GPS coordinates are stored locally only)
• •Device identifiers or advertising IDs
• •Usage analytics or crash reports
• •Any biometric data beyond what you voluntarily enter
• •Any data from children

The app contains no advertising, no tracking, no analytics SDKs, and no third-party data collection frameworks.

iCloud Sync

If you are signed into iCloud on your device, RunnerStrength uses Apple's iCloud Key-Value Store to back up your data. This means:

• •Your data is stored in your personal iCloud account, which only you control
• •Your data is restored automatically if you reinstall the app
• •We have no access to your iCloud data at any time
• •You can disable iCloud sync in iPhone Settings → Apple ID → iCloud

Apple Health (HealthKit)

RunnerStrength can optionally write data to Apple Health. This feature is off by default and must be enabled by you in Settings. If enabled:

• •Run distance, duration, and strength sessions are written to Apple Health
• •We never read any data from Apple Health
• •You can revoke HealthKit access at any time via iPhone Settings → Privacy & Security → Health
• •Apple's own privacy policy governs how Apple handles Health data

In-App Purchases

RunnerStrength offers a one-time in-app purchase to unlock full access after a 7-day free trial. All payments are processed entirely by Apple through the App Store. We never receive or store your payment information. Refunds are handled by Apple in accordance with their standard worldwide refund policy.

How We Use Your Data

Since we do not collect any personal data on our servers, we do not use your data in any way. All app functionality is powered entirely by data stored locally on your device and in your personal iCloud account.

Data Sharing

We do not share any data with any third parties. There are no advertising partners, analytics providers, or data brokers involved in this app.

Data Retention and Deletion

All data stored by RunnerStrength exists only on your device and in your personal iCloud account. You can delete all app data at any time by:

• •Deleting the RunnerStrength app from your device, which removes all locally stored data
• •Clearing your iCloud data via iPhone Settings → Apple ID → iCloud → Manage Storage

We have no ability to access or delete your data on your behalf because we never receive it.

Children's Privacy

RunnerStrength is a fitness tracking app intended for users aged 13 and over. It is not directed at children under the age of 13. We do not knowingly collect any personal information from children.

Your Rights Under UK GDPR

Under the UK General Data Protection Regulation (UK GDPR) and EU GDPR, you have rights including access to your data, correction, deletion, and the right to object to processing. Since RunnerStrength does not collect or process any personal data on our servers, these rights are automatically satisfied. There is no personal data held by us to access, correct, or delete. If you have any concerns, please contact us at nuke@nukesubmarine.com and we will respond within 30 days.

Security

Since all data is stored locally on your device and in your personal iCloud account, the security of your data depends on the security of your device and Apple ID. We recommend keeping your device updated and protected with a passcode or biometric lock. We do not transmit any data over the internet, so there is no risk of data interception or server-side breach.

Third-Party Services

RunnerStrength uses the following Apple-provided frameworks only:

• •Apple iCloud — for personal data backup and restore
• •Apple HealthKit — optional write-only health data logging
• •Apple StoreKit — for in-app purchase processing
• •Apple Core Location — for GPS run tracking (stored locally only)
• •Apple MapKit — for displaying route maps (no data transmitted)

All of these are governed by Apple's own privacy policy. We use no third-party analytics, advertising, or data collection SDKs.

Changes to This Policy

If we make any changes to this privacy policy, we will update the Last Updated date at the bottom of this page. If we ever introduce features that collect personal data in the future, we will update this policy before releasing those features and notify users through the app.

Contact Us

If you have any questions, concerns, or requests regarding this privacy policy or the RunnerStrength app, please contact us: