Set up your session, put your phone down and train. FitFor HIIT Timer keeps work, rest and cooldown on track, with cues that carry you through every round.
Effective date: 5 November 2026. These policies apply to FitFor HIIT Timer by Nachtwerk Labs, separately from other FitFor products and this website.
Privacy policy
Data collection and use
FitFor HIIT Timer does not collect or transmit personal information or usage data to Nachtwerk Labs or third parties. The app has no tracking, analytics, advertising, login or external network connections. We do not sell or share app data.
Local storage and security
Your saved workout programs, interval labels and app settings are stored locally on your device to run the timer and remember your preferences. Nachtwerk Labs cannot access this information. Its protection depends on your device's security, so keep your device and operating system up to date.
Retention and deletion
Local data remains on your device until you remove it. To delete all app data, use your device's app-data controls where available, or delete the app and its data (rather than offloading or archiving it). There is no account to delete and no server copy held by Nachtwerk Labs. Device backups, if enabled through your operating system, are managed by your device provider; manage or delete those copies through that provider's settings.
Children's privacy
The app does not collect personal information from anyone, including children.
Contacting support
If you choose to email us outside the app, we receive the email address and information you send and use them to respond to your enquiry. Do not include sensitive health information. Support email is separate from the offline app; you can ask us to delete your correspondence by contacting hello@nachtwerklabs.com, subject to any legal retention obligations.
Changes and privacy enquiries
We will publish any updates to this policy here and update the effective date. For privacy questions or requests, contact Nachtwerk Labs at hello@nachtwerklabs.com.
Terms of use
FitFor HIIT Timer is provided by Nachtwerk Labs as a tool for timing exercise intervals. You may use it for your own workouts, subject to applicable law and the licence terms of the store from which you obtain it.
Exercise safely
The app is a timer, not a medical device or a source of medical advice, diagnosis or treatment. Choose exercise and intensity appropriate for you. Consult a qualified healthcare professional if you are unsure whether an activity is suitable. Stop exercising if you feel pain, dizziness or unwell.
Availability and responsibility
Timing and cues can be affected by device settings, interruptions, battery state or operating system behaviour. Check your setup before training and do not rely on the app for safety-critical timing. To the extent permitted by law, the app is provided as available without a guarantee of uninterrupted or error-free operation.
Nothing in these terms excludes or limits rights or remedies that cannot lawfully be excluded, including applicable rights under the Australian Consumer Law.
Updates and questions
We may update these terms as the app evolves and will publish the revised terms and effective date here. For questions, contact hello@nachtwerklabs.com.
Support
Need help with FitFor HIIT Timer? Email Nachtwerk Labs at hello@nachtwerklabs.com. Include your app version, device model, operating system version and a description of the issue. Please leave out sensitive personal or health information.
To remove your saved programs and settings, follow the local data deletion guidance in the privacy policy. No account or account-deletion request is needed.