Terms

Terms of use

The ground rules for using Intervals and this website, in plain language.

Last updated 16 October 2026

About these terms

Intervals is a running app for iPhone and Apple Watch, listed on the App Store as “Run Tracker & Coach”. It is provided by Paul Davis under the Perfect Dimension brand (“we”, “us”). These terms apply to the app and to intervals.perfectdimension.com.

The app is licensed to you under Apple’s standard Licensed Application End User License Agreement. These terms add the details specific to Intervals. If they conflict, Apple’s agreement applies to the licence of the app. Our privacy policy explains how we handle your data.

Your account

  • You need to sign in with Apple or Google. Keep access to that account secure.
  • One account is for one person. You’re responsible for activity under your account.
  • You can deactivate or permanently delete your account in the app at any time.

Free and Premium

  • Always free: free runs, cue-only workout templates, basic coach voice packs, custom workouts and plans you build yourself, sharing, use on iPhone and standalone Apple Watch, history, shoes and basic stats.
  • Premium unlocks recorded coaching, all built-in training plans, and advanced stats and tracking. It is an auto-renewing subscription, monthly or yearly, sold and billed by Apple at the price shown in the App Store for your country.
  • Eligible new subscribers can start with a 14-day free trial. Apple decides eligibility. Unless you cancel at least 24 hours before the trial ends, the subscription starts automatically and you are charged the monthly or yearly price you selected.
  • Subscriptions renew automatically until you cancel in your Apple account settings. Cancelling stops the next renewal; access continues until the end of the period you paid for. Refunds are handled by Apple under its policies.
  • If your account unlocked free coached content under an earlier version of Intervals, you keep that content.
  • Deleting the app or your Intervals account does not cancel a subscription.
  • We may change what’s included in free or Premium. We won’t take away Premium features you’ve paid for during a current subscription period.

Health and safety

Intervals is for general fitness. It is not a medical device and does not diagnose, treat or prevent any condition. Coaching cues are general guidance, not personal medical or training advice.

  • Check with a doctor before starting a new exercise programme, especially if you have a health condition, are pregnant or are returning from injury.
  • Stop if you feel pain, dizziness or shortness of breath beyond normal effort.
  • Stay aware of your surroundings and traffic. Keep audio at a level where you can hear what’s around you.
  • GPS distance, pace and heart-rate readings are estimates and can be inaccurate.

Your content and sharing

You own the workouts, notes, scripts and audio you create. You give us permission to store, process and deliver them to provide Intervals to you, and to people you share them with.

When you share a workout as a link, anyone with the link can view and download it without signing in, and people who import it keep their copy. Only share content you have the right to share.

Acceptable use

  • Don’t share unlawful, hateful, infringing or harmful content through workout links.
  • Don’t try to access other people’s data, break our security, or overload or reverse-engineer our services beyond what the law allows.
  • Don’t copy, resell or redistribute the recorded coaching library or coach packs.

We may disable shared links or accounts that break these rules.

Our content

The Intervals name and mark, the app, coach recordings, coach characters and photography, plans and this website belong to us or our licensors. Hope, Chris, Charlie, Alice and the other coach and guest characters are fictional. They are not real athletes, and Intervals is not a live human coaching service.

Availability and changes

We work to keep Intervals running reliably, but we can’t promise it will always be available or free of errors. Some features need an internet connection or downloads in advance. We may update, change or retire features, and we’ll update these terms when needed, changing the date above. If a change is significant, we’ll tell you in the app or on this site.

Liability

Nothing in these terms limits liability that cannot be limited by law, including for death or personal injury caused by negligence, or your statutory rights as a consumer. Otherwise, to the extent the law allows, we aren’t liable for losses that weren’t foreseeable, or for loss of data you could reasonably have protected. Intervals is provided for personal, non-commercial use.

Ending

You can stop using Intervals and delete your account at any time. We may suspend or close accounts that seriously or repeatedly break these terms. If we stop offering Intervals, we’ll give reasonable notice where we can.

Contact

Paul Davis (Perfect Dimension). Use the contact form on our support page.