Strength. Circuits. Cardio.
One app for
every way you train.
Mix strength, circuits, and cardio in a single session and stackt keeps up. Plan your week, tick off the days, watch the work stack into PRs, streaks, and progress you can actually see.
Motivation comes and goes.
A system keeps you showing up.
Build your system,
one week at a time.
Focus on the week ahead. The days you'll train, the sessions you've stacked, the goal you're closing in on.
The week at a glance
Every day you showed up, marked before you scroll
The stack you're building
Today sits on top, swipe back through the week to review any session you've completed
One goal to close
Front and center every time you open the app, so you always know where the week stands
Log your sessions,
however you train.
A system only sticks if it fits how you actually train. Build the session you want, log it as you go, move on.
Rest timer
Starts the moment you log a set, so the session keeps its rhythm
Previous performance
Last time's numbers sit next to today's, so every set has a target
Mix block types
Drag the plus button anywhere to drop in a set, superset, or circuit, and drag blocks to reorder
Set up circuits,
hands off from there.
Any style of circuit, fully handled. Set the work, rest, and rounds once, and the timer runs every round while you keep moving.
Every style of circuit
AMRAP, EMOM, Tabata, For Time, or your own intervals, so the plan never has to bend to the app
Full-screen timer
Readable from across the gym, so the phone stays down between rounds
Watch the work
turn into progress.
Showing up is easier when you can see it adding up. Every session feeds the charts, so the habit has proof.
PR tracking
Every record caught automatically, so no win slips by unnoticed
Progression charts
Volume and workouts by week, month, six months, or year: the long view of your consistency
Exercise history
What you lifted last time, every time, one tap from the session
Reach your goal,
close the loop.
Every win gets celebrated. Every session, every PR, every goal you hit. Miss the goal, pick it up next week.
Celebrated along the way
Every session you finish and every PR you set gets its moment
A forgiving streak
One session a week sustains it, so a busy week won't break it
The bigger picture
Your stats and progress, recapped every week and month
Build your system,
one week at a time.
Focus on the week ahead. The days you'll train, the sessions you've stacked, the goal you're closing in on.
The week at a glance
Every day you showed up, marked before you scroll
The stack you're building
Today sits on top, swipe back through the week to review any session you've completed
One goal to close
Front and center every time you open the app, so you always know where the week stands
Share your progress,
stay accountable.
Every session, PR, week, and month becomes a card worth posting. Stack enough of them and the pattern speaks for itself: you kept showing up.
From the beta
Built from user feedback.
Shaped by the people who train with it every week.
“Seeing my PRs and weekly volume stack up is what keeps me coming back. The charts make progress feel real.”
“Finally one app for both lifting and conditioning!!”
“The library idea clicked immediately. Six weeks in and my plan builds itself.”
Plenty more
under the hood.
Live Activities
Rest and log sets without unlocking your phone
Home Screen widget
Keeps your goal and streak in sight all week
Works offline
Nothing stops a session, not even the basement gym
RPE logging
Know when a set was hard, not just heavy
500+ exercise videos
See how a movement is done, and what you did last time
A library that grows
Never build the same workout twice
Notifications that earn it
Only the nudges that matter: rest, rounds, your goal
