Question 1

What is IntervalGuide?

Accepted Answer

IntervalGuide is a customizable interval timer with real-time heart rate monitoring, designed for boxing, HIIT, Tabata, and any timed workout. It connects to Bluetooth heart rate monitors and includes Apple Watch and Wear OS companion apps.

Question 2

Do I need a heart rate monitor?

Accepted Answer

No, the timer works perfectly without one. But connecting a Bluetooth heart rate monitor unlocks heart rate zones, live BPM display, and workout insights that help you train more effectively.

Question 3

Which heart rate monitors are supported?

Accepted Answer

Any standard Bluetooth Low Energy (BLE) heart rate monitor will work. Popular brands like Polar, Garmin, and Wahoo work great. If your monitor uses the standard BLE Heart Rate Service, it's compatible.

Question 4

Is there a boxing round timer with a real bell sound?

Accepted Answer

Yes. IntervalGuide plays authentic boxing bell sounds and voice announcements for round and rest changes, so you can train without watching the screen. Rounds, rest periods, warm-up, and cool-down are all configurable.

Question 5

Does it work with Wear OS?

Accepted Answer

Yes. IntervalGuide is available now on Android with a Wear OS companion app that shows your timer and heart rate directly on your wrist and syncs with your phone over Bluetooth.

Question 6

Is there an iPhone or Apple Watch version?

Accepted Answer

Yes. IntervalGuide is available on the App Store for iPhone with iOS 16 or later, and it includes an Apple Watch companion app for watchOS 8 or later.

Question 7

Can I use the Apple Watch or Wear OS app on its own?

Accepted Answer

No. The Apple Watch and Wear OS apps are companion apps. They show your timer and heart rate on your wrist and let you control the session, but they need your phone nearby running IntervalGuide.

Question 8

Does IntervalGuide work offline?

Accepted Answer

Yes. The timer, the heart rate connection, and your workout history all work without an internet connection, because IntervalGuide has no account system and does not upload workouts. A connection is only needed to download the app, to show ads in the free version, and to manage a subscription.

Question 9

Is my data sent to the cloud?

Accepted Answer

Your workout and heart rate data are not sent to Tremia servers. By default they stay on your device. If you enable health sync, selected workout summaries and heart rate samples are written to Health Connect on Android or Apple Health on iPhone, and may then be available to the health apps and services you authorize there.

Question 10

Is IntervalGuide free?

Accepted Answer

The app is free to download and use with ads. A premium subscription removes ads and unlocks additional features like advanced timer configurations and extended workout history.

Question 11

What is the difference between the free version and Premium?

Accepted Answer

The free version includes the full interval timer, heart rate monitoring, and heart rate zones, and is supported by ads. Premium removes the ads and unlocks additional features such as advanced timer configurations and extended workout history.

Question 12

How do I cancel my subscription?

Accepted Answer

Subscriptions are managed by the store you purchased through. On Android, go to Google Play > Subscriptions > IntervalGuide > Cancel. On iPhone, go to Settings > your name > Subscriptions > IntervalGuide > Cancel. Your premium access will continue until the end of the current billing period.

Question 13

Is IntervalGuide a medical device?

Accepted Answer

No. IntervalGuide is a fitness and training tool. It displays heart rate data from consumer Bluetooth monitors for training purposes and is not intended to diagnose, monitor, treat, or prevent any medical condition. It is not a substitute for professional medical advice.

Question 14

How can I report a bug or request a feature?

Accepted Answer

We'd love to hear from you! Email us at support@tremia.app with details about the bug or your feature idea. We read every message and use your feedback to improve the app.

Frequently Asked Questions