Privacy Policy — PeakInterval: HIIT Timer

Last updated: October 7, 2026
Developer: Oana Rinaldi
Bundle ID: com.peakinterval.app
Contact: oanarinaldi@gmail.com

Summary

PeakInterval: HIIT Timer (“the App”) is a clean, focused interval timer for HIIT, Tabata, Japanese walking, run/walk intervals, focus blocks, and custom workouts. Everything stays on your device. We do not require an account, we do not collect your data, and we do not show ads.

Information We Do Not Collect

We do not operate servers that collect your personal data. We do not collect, store, or sell:

• Name, email, or contact details (unless you email us for support)
• Workout history, timer configurations, or progress stats on our servers
• Location data
• Usage analytics, crash reports, or advertising identifiers
• Payment card details (optional Peak Plus subscriptions are processed by Apple)

Data Stored on Your Device

The following data is stored locally on your iPhone:

• Custom timers you create with Quick Build or by hand, saved under My Timers
• Workout session log and lifetime stats (total workouts, minutes trained, day streak)
• App settings, including audio, voice, and haptic cue preferences
• Training preferences, weekly goals, planned workouts, program completion and favorite workouts
• Subscription entitlement information verified locally through Apple StoreKit

This data stays on your device unless you choose to export a timer or workout history, share it with a recipient, sync timers with your paired Apple Watch, or back up your iPhone through Apple’s iCloud or local backup services. Your selected export destination or recipient receives only the file you choose to share.

Live Activity and Dynamic Island

When a workout is running, the App may display a Live Activity on your Lock Screen and in the Dynamic Island, showing the current zone, countdown, progress, and what comes next. This information is generated and updated on your device only. We do not receive Live Activity data.

Apple Watch Companion App

The App includes an Apple Watch companion that lets you start, pause, skip, and stop workouts from your wrist. Built-in workouts and your custom timers are synced between your iPhone and Apple Watch over Apple’s local device-to-device connection. We do not receive this synced data.

Audio, Voice, and Haptic Cues

The App plays zone sounds, spoken zone names, and haptic feedback on your device to keep you on pace. These cues are generated locally. Audio plays alongside your own music and respects the toggles in Settings. No audio or workout data is sent to us or to third parties.

Peak Plus Subscriptions

The original timers and features remain free. Peak Plus is an optional auto-renewing monthly or annual subscription that adds training programs, daily interval variations, planning, advanced circuit tools and progress insights. Apple processes purchases and manages billing. We do not receive or store your payment card information. The App verifies Apple-signed purchase entitlements on your device through StoreKit; it does not send purchase receipts to a developer server. Restore purchases and Manage subscription are available in Settings and the Peak Plus screen. Terms of Use: Apple Standard EULA.

Training Plans and Notifications

Daily interval variations are generated using local rules based on your selected goal, level, time and the date. They do not use a remote AI service. Optional workout reminders are scheduled locally only after you enable them and authorize notifications. You can disable notifications in iPhone Settings, delete a planned workout, or clear your training plans and progress in the App.

Third-Party Services

The App uses Apple StoreKit for optional subscriptions, WatchConnectivity for your paired Watch, and Apple’s local notification framework for reminders. It does not integrate with third-party analytics, advertising, or developer-operated cloud services. We do not share your training data with anyone; you control any exported files.

Analytics and Tracking

We do not use analytics SDKs. We do not track you across apps or websites. The App does not display advertisements.

Children's Privacy

The App is rated 4+ and is suitable for all ages. We do not knowingly collect personal information from anyone, including children under the age of 13.

Data Retention and Deletion

Your timers, workout log, training plans, program progress, favorites and settings remain on your device until you delete them in the App or uninstall the App. Settings includes a control to clear training plans, program progress and favorites, and Activity includes a control to clear workout history. Deleting app data does not cancel an Apple subscription; cancel it in your Apple Account subscription settings. Uninstalling the App removes locally stored data from your iPhone. Data on your Apple Watch is removed when you uninstall the Watch app.

Health and Fitness Disclaimer

PeakInterval is a timing tool for workouts and focus sessions. It is not medical advice. Consult a healthcare professional before starting any new exercise program, especially if you have health concerns.

Changes to This Policy

We may update this policy from time to time. The “Last updated” date at the top will change when we do. Continued use of the App after changes means you accept the updated policy.

Contact

Questions, feedback, or support: oanarinaldi@gmail.com