# Fitness: Interval Timer — HIIT, Tabata & Circuit Timer

> HIIT, Tabata & Circuit Timer (iPhone/iPad app by Svyatoslav Boiko.)

- Source: https://appshunter.io/ios/app/fitness-interval-timer/id6812425007 (this page in markdown: same URL + `.md`)
- Developer: [Svyatoslav Boiko](https://appshunter.io/developer/1642794604)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 36 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish and 2 more
- Released: 2026-10-21
- Data updated: 2026-10-24

## What is Fitness?

Fitness is a customizable interval timer for HIIT, Tabata, circuit training, and your own fitness routines. Set the exercises, work intervals, rest periods, and repeats to fit your session.

A QUICK TIMER THAT REMEMBERS YOUR SETTINGS
Configure preparation time, work, rest, and repetitions, then press Start. Return to your everyday intervals without creating a saved workout.

START WITH A READY-MADE WORKOUT
Choose a Tabata routine or a functional fitness circuit, inspect its exercises, and adjust the timing to your needs.

BUILD AND SAVE YOUR OWN WORKOUTS
Combine exercises, preparation, rest, cooldowns, and repeat blocks in your own sequence. Adjust individual durations and repeat groups of steps. Save separate routines for different training days.

BROWSE EXERCISES OR CREATE YOUR OWN
Find exercises in the fitness library, read their instructions, and add them to your workout. Create custom exercises with your own name, description, and optional photo or video link.

CUSTOMIZE YOUR SESSION
Choose exercise icons and colors, rename steps, and arrange your sequence. Duplicate, move, copy, and paste exercises to build routines from steps you have already configured.

FOLLOW EVERY INTERVAL
See the current exercise, remaining interval time, next step, and time left in the workout. Pause and resume, restart, or move through the sequence. Choose sound cues for your session.

KEEP YOUR TIMER IN VIEW
Follow your workout with Live Activities on the Lock Screen and Dynamic Island. Use widgets to access your timer.

MAKE IT YOURS
Use light mode, dark mode, or your system appearance. Pick an accent color and customize workout and exercise icons.

REVIEW YOUR COMPLETED SESSION
See completed rounds, active time, rest time, total duration, and skipped time in your workout summary.

Use a quick timer for daily intervals or build a saved workout with your own exercises and timing. Fitness keeps your session in one place. This app provides a workout timer and exercise instructions; it does not provide coached video classes.

No ads. No paywall. No subscriptions.

## Is Fitness safe?

Not enough ratings yet to assess Fitness.

## Is Fitness legit?

Fitness: Interval Timer has limited verification signals. The AppsHunter Legitimacy Score for Fitness is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.1.8 — 2026-10-21

No release notes.

## More apps by Svyatoslav Boiko

- [Box Timer: Fight Interval](https://appshunter.io/ios/app/box-timer-fight-interval/id6778883062)
- [Yoga: Daily Practice](https://appshunter.io/ios/app/yoga-daily-practice/id6816264069)

All apps by Svyatoslav Boiko: https://appshunter.io/developer/1642794604

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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 2026-10-24.*