Like having a trainer in your corner.
Jabster runs the round like a real trainer. It calls every combo out loud over your own Spotify or Apple Music, and the work changes each session so it never goes stale. Bag, shadowbox, or rope.
JABSTER
Most boxing apps are a stopwatch with a logo.
Jabster writes the round, calls the combos out loud, and never hands you the same workout twice. Your music keeps the pace. Showing up is the only hard part.
How it works
From cold to combinations in three taps.
Build the round
Choose your time, your intensity, and your gear. Or let Jabster build the whole thing for you.
Cue your music
Open Spotify or Apple Music and press play. The bell and the cues land on top, never in place of your song.
Throw the first one
Jabster calls each combo out loud while you work. Jab, cross, hook, slip, reset. You just throw.
Watch, then throw
See the movement. Then throw the combo.
Every combo comes with a clip of the movement, so you see the technique and mirror it. No stick figure, no diagram, no guessing what slip and roll is supposed to look like.
Never the same round
Rounds that never repeat
Same jab-cross-hook every session gets old, then you quit. Jabster builds a new round from the clip library every time you start. No two sessions land the same.
JABSTERYour soundtrack
Train to your music, not ours
Other apps make you choose: hear the coach or hear your playlist. Jabster lays crisp cues over your own Spotify or Apple Music. No volume war, no stock loop.
JABSTERThe clip library
Copy the movement
Every clip shows the movement you can mirror frame by frame. Watch the form, then throw the combo. You learn from real motion, not a diagram.
JABSTER
Free tools
Try the boxing brain right now. No signup.
The same engine that runs the app powers these free tools. Build a workout, map your first week, or look up any move. Right here, no account, no catch.
4-week program builder
A personalized, periodized plan with daily sessions, combos, and a progress benchmark.
Open the tool →Combo generator
A full workout of never-repeating combos you can read off and throw right now.
Open the tool →Workout-plan quiz
Answer four questions and get a seven-day starter plan built around your gear and time.
Open the tool →Technique library
Every punch, defensive move, and footwork step shown with the mistake to avoid.
Open the tool →Boxing guides
Learn the gear and the technique.
FAQ
Frequently asked questions
When does Jabster launch?
Still in the gym, not the App Store yet. iOS comes first, Android right behind it. Leave your email and we'll send one note the day it goes live. Nothing in between.
Do I need a heavy bag?
No. Shadowbox mode needs nothing but space, and rope mode needs a rope. The bag is one of three ways to train, not the price of entry.
Can I really use my own music?
Yes, and you should. Start your Spotify or Apple Music, open Jabster, and the cues play on top. Your playlist, our coaching, no volume war.
How is this different from a round-timer app?
A timer tells you when. Jabster tells you what to throw, the whole way through. It builds the combo, calls it out loud over your music, and never gives you the same round twice.
Is there a free version?
Yes, for real. Free to start, not a seven-day trap that asks for a card up front. You get real rounds on the free tier, and we'll share the rest closer to launch.
Be first through the ropes.
iOS first, Android soon. Free to start. We'll email you the day it drops, one note, that's it.