# Ntrvl — Interval and HIIT Timer

> Interval and HIIT timer with Apple Watch integration and Apple Health sync. (iPhone/iPad app by BRETT GOWERS RODGERS.)

- Source: https://appshunter.io/ios/app/ntrvl/id6761427428 (this page in markdown: same URL + `.md`)
- Developer: [BRETT GOWERS RODGERS](https://appshunter.io/developer/1889560561)
- Category: Health & Fitness, Sports
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 26.2 · 11 MB
- Languages: American English
- Released: 2026-04-16
- Data updated: 2026-07-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ntrvl/id6761427428/reviews.md

## What is Ntrvl?

Ntrvl is an interval timer for iPhone and Apple Watch. Set up your workout in seconds and go. Haptic feedback, audio cues, and color changes keep you locked in without needing to look at your phone. Whether it's HIIT, circuit training, Tabata, or a simple work/rest routine, Ntrvl handles the timing so you can handle the work.

Every workout can be tracked on Apple Watch and automatically saved to Apple Health, including active calories, heart rate, and workout duration.

Start fast with built-in presets for Tabata, HIIT, EMOM, and Nordic 4x4 or build your own from scratch. Save up to 10 custom workouts and reorder them however you like so your go-to sessions are always one tap away.

- Customizable work and rest intervals
- Built-in presets: Tabata, Nordic 4x4, HIIT, EMOM
- Save up to 10 custom workouts
- Apple Watch companion with full workout controls
- Workout tracking with automatic Apple Health sync
- Drag-to-set time controls
- Haptic, audio, and visual interval cues
- Background audio support (keep your music playing)
- Clean, glanceable interface

## Key features

- Customizable intervals
- Built-in workout presets
- Save custom workouts
- Apple Watch companion app
- Apple Health integration
- Haptic, audio, and visual cues
- Background audio support


## Frequently asked questions about Ntrvl

### What types of workouts can Ntrvl time?

Ntrvl is designed for various timed workout styles including HIIT, Tabata, circuit training, and simple work/rest routines. It offers built-in presets for Tabata, HIIT, EMOM, and Nordic 4x4, allowing for flexible workout structuring.

### Does Ntrvl work with Apple Watch?

Yes, Ntrvl features an Apple Watch companion app that provides full workout controls directly from your wrist. This allows you to manage your intervals and track your workout without needing to look at your iPhone.

### How does Ntrvl integrate with Apple Health?

Workouts performed with Ntrvl on Apple Watch are automatically tracked and saved to Apple Health. This includes data such as active calories burned, heart rate, and overall workout duration.

### Can I save my own workout routines in Ntrvl?

Yes, you can create and save up to 10 custom workouts within Ntrvl. These custom routines can be reordered for quick access, ensuring your favorite sessions are always readily available.

### What kind of interval cues does Ntrvl offer?

Ntrvl provides haptic feedback, audio cues, and visual color changes to keep you locked into your workout intervals. These multi-sensory cues help you stay focused without needing to constantly check your device.

### Is Ntrvl free to use?

Yes, Ntrvl is available for free. There are no in-app purchases or advertisements mentioned in the application data.

### What is the update frequency for Ntrvl?

Ntrvl was last updated on April 16, 2026, with version 1.0. As this is the initial release date, future update frequency is not yet established.

### What devices is Ntrvl compatible with?

Ntrvl is compatible with both iPhone and Apple Watch devices. It is designed to leverage the capabilities of both platforms for a seamless workout experience.

## Version history (last 1 release)

### 1.0 — 2026-04-16

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*