Simple Interval Timer
CELEST Watches
⏱️ Simple Interval Timer – Perfect for Every Workout
The easiest way to time your workouts on your Android phone or Wear OS watch. Designed for athletes who want results, not complications.
💪 What It's For
HIIT training, CrossFit WODs, boxing rounds, Tabata workouts, circuit training, gym sessions, running intervals, and any sport requiring timed work/rest periods.
⚙️ Super Simple to Use
• Set your warmup time
• Choose work and rest durations
• Pick number of rounds
• Add cooldown period
• Press START and train
🧠 Smart Features
• 🎨 Color-coded phases (never lose track of where you are)
• 🔊 Audio beeps at phase transitions (train without looking at your watch)
• 👀 Large, clear timer display
• 🛠️ Customizable for any workout style
• 🚫 No ads, no distractions
The app adapts to your device language and is available in multiple languages. Translations are provided via Google Play to make the app accessible worldwide.
(If you want to help fix errors in translation, please write to info@celest-watches.com)
❤️ Why Athletes Love It
Clean interface. No learning curve. Just open, set, and go. Perfect for when you need to focus on training, not your timer.
⭐ Get fit. Stay simple. Install now.
The easiest way to time your workouts on your Android phone or Wear OS watch. Designed for athletes who want results, not complications.
💪 What It's For
HIIT training, CrossFit WODs, boxing rounds, Tabata workouts, circuit training, gym sessions, running intervals, and any sport requiring timed work/rest periods.
⚙️ Super Simple to Use
• Set your warmup time
• Choose work and rest durations
• Pick number of rounds
• Add cooldown period
• Press START and train
🧠 Smart Features
• 🎨 Color-coded phases (never lose track of where you are)
• 🔊 Audio beeps at phase transitions (train without looking at your watch)
• 👀 Large, clear timer display
• 🛠️ Customizable for any workout style
• 🚫 No ads, no distractions
The app adapts to your device language and is available in multiple languages. Translations are provided via Google Play to make the app accessible worldwide.
(If you want to help fix errors in translation, please write to info@celest-watches.com)
❤️ Why Athletes Love It
Clean interface. No learning curve. Just open, set, and go. Perfect for when you need to focus on training, not your timer.
⭐ Get fit. Stay simple. Install now.
Developer email
info@celest-watches.com
Developer website
https://celest-watches.com/simple-interval-timer/Released
Nov 28, 2025
Current version
VARY
Android version
VARY
Screenshots
