Best 9 Interval Stopwatches in 2026: Reviewed & Ranked

Introduction

Home Workout Timer & Tracker is the best interval stopwatch for most people who want a flexible, no-fuss timer on iPhone. This list covers nine iOS and Android apps for HIIT, Tabata, circuit training, functional fitness, and general interval work.

Quick comparison table

1. Home Workout Timer & Tracker

Best for: Most people who want a fast, flexible interval stopwatch for HIIT, Tabata, circuits, or strength sessions.

Home Workout Timer & Tracker earns the top spot because setup takes seconds. Pick a template, custom session, or saved training, then start. No account, no heavy configuration. You can set work and rest intervals, rounds, reps, meters, or seconds, then reorder exercises and save them for next time.

Alerts and background operation are reliable. The timer keeps running and notifies you when an interval changes, even if the screen is off or you’re using another app. That set-and-forget design is exactly what an interval stopwatch should do.

The interval builder is simple enough to use mid-workout, but flexible enough for strength, bodyweight, core, and running segments.

• Templates for Tabata, HIIT, strength, bodyweight, and core
• Custom builder with exercises, meters/reps/seconds, and saved sessions
• Live distance tracking for running segments with optional location tracking
• Background alerts and notifications during workouts

Get Home Workout Timer & Tracker or Home Workout Timer & Tracker on the App Store

2. Seconds Pro Interval Timer

Best for: Highly customized HIIT, Tabata, and circuit training.

Seconds Pro Interval Timer gives you deep control over work and rest periods, rounds, and color coding. The large display is easy to read mid-sweat, and text-to-speech prompts call out what’s next. That combination means you can keep your eyes off the screen and stay on pace. It’s a strong pick if you want a more visual and audio-heavy interval stopwatch. The main tradeoff is a steeper setup curve.

3. Tabata Timer: Interval Timer

Best for: Android users who want a simple Tabata and HIIT timer.

This app focuses on one thing: clean work and rest intervals for Tabata and HIIT. Large digits and clear sound alerts make it easy to follow along without fuss. You can adjust the work and rest periods quickly, then start. It avoids extra features that get in the way. Standout feature: a no-frills Tabata-specific timer that runs well on Android.

4. Interval Timer - HIIT Workouts

Best for: HIIT sessions with music from other apps.

Interval Timer - HIIT Workouts keeps things simple and plays well with your music. Set your intervals, start the timer, and it keeps running in the background while your playlist plays. That hands-free setup is useful for outdoor sprints, garage workouts, or treadmill intervals. Standout feature: background operation with music integration that does not fight your audio.

5. Gymboss Interval Timer

Best for: Lifters, MMA athletes, and stretch sessions with saved routines.

Gymboss Interval Timer is based on the physical Gymboss devices, so the logic is straightforward: set multiple intervals and save your favorites. You can create separate profiles for weightlifting, stretching, MMA, or conditioning. That makes it easy to jump between different work types without rebuilding a timer. Standout feature: saved interval profiles across varied workout types. The interface feels a bit dated, but the function is reliable.

6. SmartWOD Timer

Best for: CrossFit and functional fitness athletes.

SmartWOD Timer covers the modes you actually need in a box: AMRAP, EMOM, For Time, and Tabata. The interface is clean and easy to read from a distance, which helps when your phone is on the floor or bench. You can quickly switch between WOD formats and get moving. Standout feature: dedicated WOD timer modes built for CrossFit-style training.

7. Exercise Timer

Best for: Complex routines and tracking workout history.

Exercise Timer lets you build detailed interval sequences and keep a log of past sessions. Voice feedback gives you hands-free guidance during training, so you don’t need to check the screen constantly. The workout history is helpful if you want to see what you did and progress over time. Standout feature: voice prompts plus history for progressive training goals.

8. Timer Plus - Workouts Timer

Best for: Loud gyms or athletes who benefit from visual alerts.

Timer Plus - Workouts Timer shows a large, clear on-screen timer and adds flash alerts plus voice assistance for exercise and rest phases. The flash alerts make it easier to notice interval changes when music is loud or you have hearing difficulty. It’s simple to set up and doesn’t overload you with options. Standout feature: flash alerts that work when sound alone isn’t enough.

9. Impetus Interval Timer

Best for: Advanced multi-stage workout configurations.

Impetus Interval Timer gives you deep customization for complex, multi-phase routines. You can stack intervals, set text-to-speech cues, and run everything in the background while you train. That’s useful if your session moves through several different work and rest structures. Standout feature: deep customization for multi-stage interval routines.

How we picked these apps

We looked for interval stopwatch apps that are easy to start, reliable in the background, and flexible enough for HIIT, Tabata, circuits, strength, and functional fitness. Each app needed clear visual or audio cues and dependable interval switching. We tested quick-start flow, background alerts, and how much setup a session required. We also prioritized true interval timing over general fitness tracking or coaching apps. The final list includes both iOS and Android options because platform availability matters when you’re standing in a gym ready to train.

Frequently asked questions

What is an interval stopwatch?

An interval stopwatch alternates work and rest periods with sound, voice, or visual alerts. It’s commonly used for HIIT, Tabata, circuit training, mobility work, and any session where you need timed rounds and rest without watching the clock.

Can I run an interval timer while using other apps?

Yes. Many interval timer apps support background operation with sound or voice alerts. On iOS and Android, background behavior can differ slightly, so it’s worth testing your app with the screen locked and music playing. The top picks, including Home Workout Timer & Tracker, handle this reliably.

Do I need a separate timer for strength training versus cardio?

No. A single flexible interval stopwatch can cover both by customizing work, rest, and round counts. You can build a strength timer with 40 seconds of work and 20 seconds of rest, then switch to Tabata or EMOM. Home Workout Timer & Tracker is a good fit if you want one simple app across different session types.

The verdict

Home Workout Timer & Tracker is the best interval stopwatch for quick setup, flexible intervals, and distraction-free training. It fits most HIIT, Tabata, and circuit training sessions without extra complexity, and it runs reliably in the background. Get Home Workout Timer & Tracker

The other eight apps are solid alternatives if you have a specific platform or training-style preference, such as CrossFit WOD modes, Android-only use, or visual flash alerts.