# Ares – Workout Interval Timer > Free interval timer for HIIT, Tabata, EMOM, yoga and stretching. Quick to set up, times each side for you and shows heart-rate zones on Apple Watch. No ads. Ares (App Store name: “Ares – Workout Interval Timer”, formerly Ares Interval) is a free interval timer app for iPhone, iPad and Apple Watch made by Krzysztof Orłowski. App Store: https://apps.apple.com/app/ares-workout-interval-timer/id6743498963 ## Key facts - Platforms: iPhone, iPad (requires iOS 18.6 or later) and Apple Watch - Category: Health & Fitness; interval timer for HIIT, Tabata, EMOM, AMRAP, yoga and stretching - Price: free, no ads; optional Ares Plus support (monthly, yearly or one-time “Forever” purchase) - No limits in the free version: unlimited number and length of workouts and workout sets - Left/Right mode times each side automatically (stretching, yoga, single-side exercises) - Works with the screen locked and does not interrupt music - Languages: English, Polski, Español, Français, Deutsch, Italiano, Nederlands, Português (Brasil), Türkçe, 日本語, 한국어, 简体中文, 繁體中文 - Privacy: no personal data collected; anonymous usage analytics (Firebase); health data (HealthKit) stays on the device - Developer: Krzysztof Orłowski (https://www.christophorlovski.com/, in Polish: https://www.krzysztoforlowski.pl/) - Publisher: eris.one (https://eris.one/), small, focused apps for iPhone, Apple Watch and Mac, including MapsPin - Website: https://ares.eris.one/ (available in 13 languages) - Contact: ares@eris.one - Last updated: 2026-10-26 ## Features - Left/Right mode for yoga and stretching - Favourite workouts and sets pinned to the home screen - Light, dark or automatic mode - 116 exercises with photos and descriptions - Dumbbell, kettlebell, band and pull-up bar exercises too - Your own note for each workout, like tips from your coach - Warm‑up, main workout and stretching in one set - Unlimited basic workouts and sets - 16 ready-made workouts and 6 sets, each with a description - Add a workout from your coach or a friend via link or QR code - Share your own workouts and sets the same way - Live heart rate, zones and calories - Pause with a double tap - Train with just your watch, no iPhone - Heart rate from AirPods Pro 3 and Powerbeats Pro 2 too - Live Activity and Dynamic Island - Your music keeps playing, Ares lowers it if you like - Open the app or start your last workout right from the widget - Heart rate chart for work and rest - Weekly trends and your weekly streak - Show off your result: a ready-made graphic with your photo for a story or post - With a watch or earbuds, workouts also go to Health and Fitness - Voice & sounds: Counts down and calls out exercise names. - Locked screen: The timer keeps running and talking. - Keeps your music playing: Ares lowers it if you like. - Haptic feedback: Feel phase changes without looking. - Light and dark: Or automatic. All free. - 13 languages: From English to 日本語. - Ares Plus: Workouts on Apple Watch, no iPhone needed - Ares Plus: Intervals that rise and fall - Ares Plus: Exercise names in your own voice - Ares Plus: 9 themes, plus Day or your own colours - Ares Plus: Female and Calm voices, new sounds - Ares Plus: And more: custom times, icons and Family Sharing ## Ares Plus Ares stays free and ad-free. With Plus you train without your phone, get intervals that rise and fall, hear your own voice and make the app look your way. And you support its development. Details: https://ares.eris.one/plus/ - Workouts on Apple Watch, no phone needed: Put up to 50 workouts on Apple Watch and train without your phone. One is free. The result lands in your history when you’re back with your iPhone. - Exercise names in your own voice: Record the name of an exercise in your own voice; Ares plays it at the start of that workout, so you know what comes next without looking at the screen. - Any work and rest times: Add your own times, from 3 seconds to 6 hours, to the work and rest pickers, for example 33 seconds. One custom time is free; with Plus, add as many as you like. - Themes, light and dark: Nine more colour themes for the whole app, including the Ares brand themes and four seasonal ones. - A different theme for each workout: Give every workout its own colours: a calm Spring for yoga, a fiery Ares Red for HIIT. The workout screen switches to that theme on its own when the workout starts. - More icons: Almost 50 new icons, so every workout is easy to find. - Two extra voices: Female or Calm instead of the default voice. Calm speaks more softly, just right for yoga and stretching. Both work on your watch too. - New sounds: Different sounds for the start, countdown and end of a workout. Mix them however you like. - For the whole family: One purchase works for everyone in your Family Sharing group, at no extra cost. - Direct contact: Have a question or an idea? I read messages from supporters first. - New features included: Future Plus features come with updates, at no extra cost. - Q: Is Ares free without Plus? A: Yes. The timer, Left/Right mode, workouts and sets, voice cues, Apple Watch with heart-rate zones, Apple Health, history and widgets are free, with no ads and no time limit. There is also no limit on how many basic workouts and sets you save or how long they are. One custom work or rest time, one workout on Apple Watch and one workout with a pattern are free too. - Q: What is the difference between monthly, yearly and Forever? A: Only how you pay. All three unlock the same Plus features. Monthly and yearly renew automatically; Forever is a single payment that never renews. - Q: What happens when my subscription ends? A: Nothing is deleted. Saved workouts keep playing with their patterns, custom times and exercises. Themes, voices and sounds switch back to the free ones, and the voice reads out the exercise name instead of your recording. Renew Plus and everything is back. - Q: I have a new iPhone. How do I get Plus back? A: Plus is tied to your Apple Account. Open the Plus screen and tap Restore Purchases. Have a promo code? Use Redeem Code on the same screen. - Q: How do I cancel a subscription? A: Tap Manage Subscription on the Plus screen, or go to iPhone Settings → your name → Subscriptions. Do it at least 24 hours before the end of the current period. Forever has nothing to cancel; if you switch to it, cancel your old subscription so you are not charged twice. - Q: Where are my voice recordings stored? A: Only on your iPhone, inside the app’s data. They are included in your iPhone’s iCloud backup and are not sent to me or anyone else. - Q: Can my family use Plus? A: Yes. Plus supports Family Sharing, so everyone in your Family Sharing group gets it at no extra cost. ## Ready-made workouts Free templates in the app (+ on the workouts list), also on https://ares.eris.one/workouts/ with an “Add to Ares” link and a QR code each: - Tabata: 8 × 20 s, 10 s rest (3:50) - HIIT 30/30: 10 × 30 s, 30 s rest (9:30) - HIIT 40/20: 8 × 40 s, 20 s rest (7:40) - HIIT 45/15: 10 × 45 s, 15 s rest (9:45) - EMOM 10: 10 × 60 s (10:00) - EMOM 20: 20 × 60 s (20:00) - AMRAP 12: 1 × 720 s (12:00) - Run intervals: 6 × 60 s, 90 s rest (13:30) - Boxing rounds: 3 × 180 s, 60 s rest (11:00) - Plank: 3 × 60 s, 30 s rest (4:00) - Wall Sit: 3 × 45 s, 30 s rest (3:15) - Squats: 4 × 40 s, 20 s rest (3:40) - Push-ups: 4 × 30 s, 30 s rest (3:30) - Side Plank: 3 × 30 s per side, 30 s rest (4:00) - Stretch, both sides: 6 × 30 s per side (6:00) - Long-hold stretch: 5 × 60 s, 10 s rest (5:40) - Full body at home: Jumping Jacks, Wall Sit, Push-ups, Bicycle Crunches, Squats, Plank, High Knees, Lunges, Mountain Climbers, Glute Bridge, Skater Jumps (Low), Superman Hold (9:00) - Warm-up: Marching in Place, Jumping Jacks, Standing Knee to Elbow, Hip Hinge, Squats, Step-Back Lunge, High Knees (5:15) - Strong core: Plank, Bicycle Crunches, Dead Bug, Russian Twist, Mountain Climbers, Hollow Body Hold (9:20) - No-equipment HIIT: Burpees, High Knees, Mountain Climbers, Skater Jumps (Low), Jumping Jacks, Squats (13:30) - Post-workout stretch: Standing Quad Stretch, Standing Hamstring Stretch, Calf Stretch (Straight Knee), Figure-4 Stretch, Cross-Body Shoulder Stretch, Child’s Pose (7:00) - Evening wind-down: Cat-Cow, Downward-Facing Dog, Child’s Pose, Seated Forward Fold, Supine Twist, Legs Up the Wall, Corpse Pose (8:45) ## FAQ - Q: Is Ares free? A: Yes. Every core feature is free, with no ads and no limit on how many basic workouts and sets you save or how long they are. Ares Plus is an optional way to support the app, with a few extras. - Q: How do I set up a Tabata workout? A: Tabata is 8 rounds of 20 seconds of work and 10 seconds of rest. On the Timer screen, pick 8 rounds, 20 s work and 10 s rest, then tap Start. Save the workout and next time it’s one tap away. - Q: Does the timer work with the screen locked? A: Yes. Lock your phone or switch to another app, and Ares keeps counting and giving voice cues. - Q: Does Ares stop my music? A: No. Music from Spotify, Apple Music or any other app keeps playing. If you want, Ares lowers it for cues. - Q: Can I train with just my Apple Watch? A: Yes. Put a workout on your watch and leave your phone behind. One workout on Apple Watch is free, up to 50 with Ares Plus. The result lands in your history when you’re back with your iPhone. - Q: How do I add a workout from a friend? A: Your friend shares a workout or set from Ares as a link or QR code. Open the link or scan the code with your camera or the scanner in the app, check the preview and tap Add to my workouts or Add to my sets. No account, no sign-in. - Q: Which devices does Ares work on? A: iPhone and iPad with iOS and iPadOS 18.6 or later, and Apple Watch. The whole app is available in 13 languages. ## Use cases - HIIT, Tabata, EMOM, AMRAP, Yoga, Stretching, Mobility, Warm‑up ## Pages - [Home](https://ares.eris.one/): overview of the app and its features - [Ares Plus](https://ares.eris.one/plus/): every Plus feature in detail, plans and FAQ - [Ready-made workouts](https://ares.eris.one/workouts/): the app's free ready-made workouts and sets with their timings, added to Ares with one tap or a QR code - [Redeem a code](https://ares.eris.one/redeem/): how to redeem an Ares Plus offer code, in the app or with one link - [App Store](https://apps.apple.com/app/ares-workout-interval-timer/id6743498963): download, ratings and reviews - [Polski](https://ares.eris.one/pl/): home page in Polski - [Español](https://ares.eris.one/es/): home page in Español - [Français](https://ares.eris.one/fr/): home page in Français - [Deutsch](https://ares.eris.one/de/): home page in Deutsch - [Italiano](https://ares.eris.one/it/): home page in Italiano - [Nederlands](https://ares.eris.one/nl/): home page in Nederlands - [Português (Brasil)](https://ares.eris.one/pt-br/): home page in Português (Brasil) - [Türkçe](https://ares.eris.one/tr/): home page in Türkçe - [日本語](https://ares.eris.one/ja/): home page in 日本語 - [한국어](https://ares.eris.one/ko/): home page in 한국어 - [简体中文](https://ares.eris.one/zh/): home page in 简体中文 - [繁體中文](https://ares.eris.one/zh-hant/): home page in 繁體中文 - [Privacy Policy](https://ares.eris.one/privacy-policy/): what data the app collects and how it is used - [Terms of Use](https://ares.eris.one/terms-of-use/): terms, subscriptions, liability ## Optional - [Sitemap](https://ares.eris.one/sitemap.xml)