Privacy Policy

Last updated: April 30, 2026

Run Interval Privacy Policy

Developer: Jonstar (손영호 / Youngho Son)

Jonstar (손영호), the developer of Run Interval (hereinafter referred to as "the App"), values your privacy and is committed to protecting your personal information. This Privacy Policy explains how the App collects and handles information.

1. Information We Collect (stored on-device only, no server transmission)

• Workout data: workout date, duration, completed sets, running distance (km)
• App settings: voice guidance, countdown timer, theme, etc.
• Location data: used only to calculate running distance during workouts. Location coordinates and movement routes are NOT stored. Only the calculated distance value (km) is saved in workout records.

1. Information We Do Not Collect

• Personally identifiable information such as name, email address, or phone number
• Account information (no login required)
• Advertising identifiers
• Location coordinates or movement routes

1. Data Storage

• All data is stored locally on the user's device only