Surge Training
Interval training that actually coaches you ⚡
HIIT, Tabata, AMRAP and circuits — plus a 20 m beep test. No equipment, no subscription.
What is it?
Surge Training is a fast, clean interval timer and bodyweight workout coach. Build a session in seconds, follow a big glanceable countdown with a real voice calling your moves, and finish with the classic 20 m beep test. Everything runs fully offline on your phone, and it's free.
Features
- ⚡ Build a workout in seconds — pick a goal, body part and style and get matching exercises you can tweak, or tap a quick-start like Tabata 20/10.
- 🗣️ Natural voice coaching — six on-device voices announce each move, count you in and cheer you on at the halfway, 80% and 90% marks. No internet needed.
- 🏋️ 141 no-equipment exercises — for every muscle group, each with animated guides and step-by-step form tips.
- ⏱️ A timer you can read across the room — phase colours, beeps and haptics, with warm-ups and cool-down stretches that match what you're training.
- 🏃 20 m beep test — the proper accelerating cadence, a VO₂max estimate, and a tool to measure out the course with your phone.
- 🔥 Calorie estimates, saved favourites, and a clean, distraction-free design.
How it works
Choose a quick-start or build your own: set rounds, work and rest, and switch on a matched warm-up and cool-down. Hit start, prop up your phone, and let Surge count you through every interval — calling the next move before it arrives so you're never caught off guard. Tap any exercise for an animated demo and form tips without pausing your workout.