Privacy Policy

Basic Information

• Contact: papapenguin.soft@gmail.com
• Effective date: May 8, 2026

Information Stored

Voice Interval Trainer is an interval timer that can be used without creating an account. Routine data is not synced to the cloud and is stored in the user's browser.

Routine data created by the user is stored locally in the browser by default. The operator does not receive or store routine titles, step names, or workout time settings on a server.

• Routine list, routine titles, step names, and step durations
• Whether default presets have been added
• When to show the install prompt again
• Local state for ad display conditions
• Service worker and cached files for offline use and faster loading

Backup, Restore, and Share Links

When the backup feature is used, routine data is downloaded as a JSON file. The user is responsible for storing and managing that file.

Share links include the selected routine title, step names, and step durations in a compressed payload in the URL. Do not put sensitive or private information in routine names or step names.

Voice Guidance

The app may use the browser's Web Speech API for workout voice guidance. Speech synthesis behavior can vary depending on the browser and operating system.

Ads and Cookies

Voice Interval Trainer displays Google AdSense ads. When AdSense is active, Google and its advertising partners may use cookies, web beacons, IP addresses, device identifiers, or similar technologies for ad delivery, frequency capping, abuse prevention, ad measurement, and personalized or non-personalized ads.

Google's use of advertising data is explained in the Google partner sites policy.

User Controls

• Delete routines in the app
• Download a full backup file
• Restore from a backup file
• Delete site data, cache, and cookies in browser settings
• Change personalized ads settings in the browser or device settings