Swinger Privacy Policy

Effective date: October 21, 2026

Swinger: Bowling Swing Tracker (“Swinger”) is an iPhone and Apple Watch app. This policy explains what information Swinger uses and how it’s handled.

Information Swinger uses

Motion sensor data. While you’re measuring a shot, Swinger reads your Apple Watch’s motion sensors (accelerometer and gyroscope) to calculate arm speed, release consistency, and related measurements. The raw sensor readings are processed on the watch and are not stored after each shot is analyzed.

Shot and session data. The results of each shot, such as arm speed, wrist rotation, which ball of the frame it was, and the time it was bowled, are sent from your Apple Watch to your iPhone over Apple’s secure connection between the two devices and saved on your iPhone. Session details you enter, such as session type and name, are saved the same way.

iCloud. If you’re signed in to iCloud and iCloud is turned on for Swinger, your shots, sessions, and settings are also stored in your private iCloud account. This keeps them if you delete and reinstall the app or move to a new iPhone, and keeps them in sync on your iPhones. Your iCloud data is protected by Apple and can only be accessed by you, not by the developer. If iCloud is off, Swinger works the same and keeps everything on your iPhone.

Settings. Your preferences, such as arm length, units, and start delay, are stored on your iPhone (and in iCloud, if it’s on) and shared with your Apple Watch so it can show results correctly.

Apple Health

Swinger runs a bowling workout on your Apple Watch so it can keep measuring while your arm is down during your approach and swing. Starting a workout requires permission to share workouts with Apple Health, which Swinger asks for the first time you start measuring.

Swinger does not read any data from Apple Health, does not save workouts or other data to Apple Health, and never uses Health information for advertising or shares it with anyone.

What Swinger does not do

• It does not send your data to the developer or to any server other than your own iCloud account.
• It does not require an account or ask for your name, email address, or contact information.
• It does not use advertising, analytics, or tracking tools, and it does not track you across other apps or websites.
• It does not sell or share your data with anyone.
• It does not use your location.

Backups

Your data on your iPhone may also be included in your iCloud or computer backups, depending on your device settings. Those backups are handled by Apple under Apple’s privacy policy.

Deleting your data

You can delete individual shots or entire sessions at any time in the app. Deleting them also removes them from iCloud. Deleting Swinger from your iPhone and Apple Watch removes its data from those devices but not from iCloud, so it comes back if you reinstall. To remove Swinger’s data from iCloud, open Settings on your iPhone, tap your name, then iCloud, and manage your account storage.

Children

Swinger is not directed to children under 13 and does not knowingly collect personal information from anyone.

Changes to this policy

If this policy changes, the updated version will be posted at this address with a new effective date. If Swinger ever starts collecting data, this policy will be updated before that happens.

Contact

Questions about this policy can be sent to support@ericmarschner.com.