The Heavy Bag App That Calls Combos, Defense and Footwork
Calling it the Shadow Boxing App may not have been our smartest move, because it works just as well when there's something to hit. On the heavy bag, a coach calls out combinations, defenses and footwork, tells you when to stay light and when to unload, and shapes each round to your level. There are exercises and workouts built for the bag, programs to follow, and all you need is your phone: no sensors, no trackers, no special bag. It's on iPhone, iPad and Android.
What the app does on the bag
A coach calling every phase of the round
Left alone, most people hit the bag at one speed until they're gassed. The app runs the round for you. Light phases get a specific job, like light 1-2s at a steady rhythm or jabs with footwork. When it's time to go hard, you hear the exact combo to throw with power, then a new one, then a recovery cue that tells you what to do instead of standing still.
Everything is called out by voice and shown on screen, so the phone can sit on a chair across the room while you keep your eyes on the bag.
Defense and footwork, not only punches
The bag doesn't punch back, which is exactly how bad habits form. The app keeps calling slips, rolls, pivots and steps between your combos, so you move after you punch and circle the bag instead of planting your feet in front of it.
Some exercises are built around it: Bag Burst Defense pairs a defensive move with an explosive burst, and Inside Fighting (bag) has you step in close for short hooks, uppercuts and body shots with level changes.
Rounds that fit your level
Your intensity setting changes how long the power bursts last and how much recovery you get after them. Your boxing level decides which bag exercises end up in your workout and how demanding they are: short, clean sequences for beginners, defense and short-range work for more experienced boxers.
We reworked all of this in September 2026, after weeks of training with the app on a real bag. Here's what changed.
Get to the bag fast
Tell the app once that you own a bag and it starts suggesting bag workouts. On days when you don't want to choose, Quick Start builds a session from a few questions, with a heavy bag toggle. Bag workouts open with a guided warmup, and if you only want plain rounds, the free round timer works on your phone and your Apple Watch.
Bag workouts
Some are short and brutal, some long and technical, some built for cardio or for defense. Here are a few of them. Got a jump rope too? Rope and bag alternates rope rounds with bag rounds. And every other workout in the app works on the bag as well.
Inside Fighting
Work short range on the bag, with level changes and powerful body shots.
Bag Burst Defense
Defensive moves paired with explosive bursts on the bag.
Punching bag HIIT
Intense punching bag exercises and squats.
Advanced punching bag
Work on the bag with varied exercises and some freestyle.
Punching bag rounds
Try to survive intense full rounds on the bag.
Bag explosiveness
Alternate quick punches and powerful ones on your bag.
Speed on the bag
Alternate constant punches with fast and precise combos.
Muscle memory
Repeat effective combos on the punching bag to drill them into your mind.
And many more in the app!
Hitting the Bag: an 8-day boxing program
A program for intermediate boxers, with tutorial videos from our coaches. Each day has its own focus, in an order that leaves your body time to recover.
- Day 1: the basics, varying speed and power.
- Day 2: cardio, with bodyweight exercises between rounds.
- Day 3: defense, because the bag doesn't hit back.
- Day 4: explosiveness, in short bursts at full power.
- Day 5: a lighter shadow boxing day to recover.
- Day 6: everything from the week, mixed together.
- Day 7: speed: let your hands go.
- Day 8: freestyle rounds to finish.
No bag? Start without one
You don't need a bag to use the app. Every workout can be done shadow boxing, and that's where most people start: combos, defense, footwork and conditioning all work in the air, in a living room or a hotel room.
A bag lets you go further. It tells you whether your wrist is straight at impact and whether your hook lands with your hips behind it, and it's the only way to train power at full intent. When you get one, the app is ready for it. We compared the two in shadow boxing vs the heavy bag.
Latest heavy bag articles
Rope and Bag: The Old-School Combo That Will Wreck You
Alternating jump rope and heavy bag rounds is one of the oldest boxing gym workouts and one of the hardest. Why the pairing works, how to punch on tired legs, how to set up your space, and how the Rope and bag workout in the app runs it.
What to Do When the App Says 'Freestyle' on the Bag
When a freestyle round starts on the bag, pick one thing to work on and build the round around it. Why the app leaves some bag rounds open, what the coach still tells you during them, and a list of themes so you never end up flailing.
Why Uppercuts Feel Awkward on the Heavy Bag (and How to Fix It)
Uppercuts feel awkward on a heavy bag because a straight bag has no chin, the punch skids up its side, and the bag swings away. How to fix your distance and angle, which bags work best for uppercuts, and how to drill them in the app.
Frequently Asked Questions
Does the Shadow Boxing App work with a heavy bag?
Yes. Every exercise in the app works on the bag, and some are built specifically for it, along with bag workouts and programs like Hitting the Bag. Tell the app you own a bag and it suggests them first.
Do I need punch trackers or sensors?
No. You only need your phone, somewhere you can hear it. The app calls out what to do by voice and on screen, so you can keep your eyes on the bag.
Is the heavy bag good for burning calories?
Yes. Every punch drives into something heavy, and rounds that switch between power bursts and light work keep your heart rate up the whole time. The app estimates the calories you burn in each workout from the exercises, how hard they are and your weight, shows them in your progress, and saves them to Apple Health on iPhone.
Are the bag workouts free?
Yes. The free version includes heavy bag workouts, along with workouts for the jump rope and the speed ladder. Premium adds more workouts and programs.
Can I use it without a bag?
Yes. Every workout can be done shadow boxing, with no equipment at all. The bag adds contact and lets you train power, so it’s worth getting one when you have the space.
Does it work on Android and Apple Watch?
The bag workouts and the Hitting the Bag program are on iPhone, iPad and Android. On Apple Watch there’s a free round timer, handy for plain bag rounds.
Try it on your bag
Download the app, tell it you have a bag, and start with a beginner bag workout at around sixty percent power. Comparing apps first? Here's our ranking of the best heavy bag apps.
