A combo engine that knows boxing.
The engine uses a biomechanics transition matrix — a jab flows into a cross, a cross sets up a hook — so every combination feels like real boxing, not random punches.
Boxing & combat training
Throw hands. Get sharper. Every round.
A voice coach in your pocket. Real combos that flow like boxing. Workouts that adapt to your skill every single round.
100% free · No account needed
6
Voice coaches
200+
Smart combos
∞
Adaptive rounds
0
Equipment needed
What makes it different
Built like a real training session.
It learns your skill, round by round.
An Elo-style rating tracks your level over time. A dynamic controller adjusts pace mid-workout. Tap “too easy” — the next round bites back.
Six voices. One in your ear.
Distinct coach personalities call every punch out loud, count you in, and keep you moving — so you can stay heads-down on the bag, not on a screen.
Inside the app
Everything you need.
Nothing you don't.
Quick start
Hit play, hit the bag.
Open the app, pick Quick Start, and the bell rings inside ten seconds. Streaks, levels, and your last session waiting where you left off.
Live workout
Big timer. Loud bell. No staring at the screen.
The voice coach calls every combo in real time. The current sequence sits at the bottom for a glance — color-coded jab, cross, hook, uppercut. Just listen and throw.
Build your arsenal
Famous fighters' combos. Or your own.
Browse a library of named combinations from real boxing — Peek-a-Boo flows, Tyson sequences, Mayweather setups. Build your own combos and save them to your arsenal.
Tune the session
You're in charge of the workout.
Set rounds, length, rest, intensity floor and ceiling. Save your favorite setups and pick them up next time with a single tap.
Round feedback
Push back. The app pushes back.
Between rounds, tap “too easy” or “too hard” and the next round responds — combo length, speed, complexity. Your long-term skill rating also moves with you.
After the bell
Walk away knowing exactly what you did.
Post-workout summary shows rounds completed, punches thrown, total time, and the XP that lands in your progression. Watch yourself level up week over week.
Choose your corner
Six coaches. Six energies.
Calm and technical, loud and relentless, or somewhere in between. Pick the voice that pushes you hardest.
Alex
Steady, technical, by-the-book.
Jade
Sharp pace, surgical timing.
Mike
Old-school grit. No nonsense.
Rico
Fast hands. Fast mouth. Faster feet.
Sarah
Encouraging, focused, fundamentals.
Thunder
Loud. Relentless. You'll hear him.
How a session goes
Three taps and you're training.
-
01
Set the session
Choose rounds, length, rest, and intensity — or hit Quick Start and go.
-
02
Hit the bag
The bell rings, the coach starts calling combos. You move, you breathe, you punch.
-
03
Get sharper
Between rounds, push back. The next round responds — and so does your long-term progression.
Pricing
Free. All of it.
Every coach, every combo, every adaptive round — no subscription, no account, no catch. Download and start training.
Questions
Good question.
Do I need a heavy bag?
No. SmartStrike works for shadow boxing in any room and pairs naturally with a heavy bag, freestanding bag, or pads when you have them.
What if I'm a total beginner?
The combos start short and simple — usually 2 or 3 punches. As your rating climbs, longer combos and body work unlock automatically.
Do I have to look at the screen during a round?
Not really. The voice coach calls each combo out loud and announces the round, the countdown, and the rest period. You can train heads-down.
Is SmartStrike really free?
Yes. The full app — every coach, every combo, adaptive difficulty — is free. No subscription, no account, no in-app purchases required.
Which devices are supported?
iPhone running iOS 15 or later, and Android phones running Android 9 (Pie) or later.
Is my data shared with anyone?
SmartStrike stores your workout history locally on your device. See our privacy policy for details.
Last round
Ready to throw hands?
Free to download. The bell's waiting.