Check in. Be honest.
About sixty seconds: sleep, energy, stress, soreness, and the time you have. Connect a supported health source if you want more context.
ADAPTIVE TRAINING FOR REAL LIFE
Life shifts.
Your training
should too.
A workout that fits the day you’re actually having. A coach that helps you keep going.
Available to test on iPhone with Apple TestFlight.
YOUR GOAL STAYS.THE PLAN ADAPTS.
Less time today?Still a training day.
● 3 daysJTODAY · YOUR TRAINING DAY
Short on time.
Not on purpose.
76READY
✦ How are you feeling today?↗
COACH’S CALL ↗
Full body.
Fully doable.
The essentials, without the extras.
Make these twenty minutes count.
TIME20 minFOCUSFull bodyEFFORTSteady
Let’s train →
This weekFull plan ↗
M✓T✓W–T4F–S6S–
⌂Today▦Plan▶Train↗Progress✦Coach
A LITTLE DIRECTION. A LOT OF FORWARD.Illustrative app preview
Not every day is a personal best.Every day is a chance to keep going.
01 / A PLAN THAT LISTENS
Start with you.
Build from there.
You don’t need a perfect routine to get started.
You need a next step that makes sense.
Make a plan that fits.
Set your weekly rhythm, goals, and available equipment. TACK uses your check-in and readiness to adjust today’s training.
Keep the promise small.
Optional reminders help you start. Workout logging and recaps help you see what you’ve done. Your coach helps you find the next step.
02 / DIFFERENT DAY. SAME DIRECTION.
Meet today
where it is.
The point isn’t to force the plan.
It’s to find a way to keep training.
TODAY, ADAPTED
You planned for 50 minutes.
You’ve got 20.
Let’s use them.
Keep the key movements. Trim the extras. Make room for a session you can actually finish.
TIME20 minAPPROACHKeep it focused
A shorter workout is still a workout.
Example adaptation, not a personalized recommendation.
MORE CONTEXT. NOT MORE HOMEWORK.
Your body has signals.
Give them a say.
Start with a daily check-in. Optionally add one readiness source to bring sleep and recovery context into the plan.
Apple Health Supported iPhone health dataOura Direct account connectionWHOOP Direct account connection
Connections are optional and subject to provider permissions and availability. Supported Garmin data can come through Apple Health; direct Garmin connection is not available.
03 / THERE’S A REASON FOR THE NAME
When the wind changes,
change tack.
Sailors don’t wait for the wind to cooperate. They change tack, take the angle the conditions give them, and keep moving toward the same destination.
Training works better that way, too. Some days you’re rested. Some days you’re busy. Some days, twenty minutes is the win.
Your goal doesn’t have to change.
Your way of getting there can.
And a tack holds things in place. That’s the other half: keeping the habit pinned down when life pulls you off course.
A FEW THINGS YOU MIGHT BE WONDERING
Good questions.
How do I get TACK?
TACK is currently available as an iPhone beta through Apple TestFlight. Tap “Join the beta,” install TestFlight if prompted, then accept the invitation and install TACK. A compatible build and an open tester spot are required.
Do I need a wearable?
No. Your daily check-in is enough to start. If you connect Apple Health, Oura, or WHOOP, TACK uses your selected source alongside how you say you feel. It doesn’t average scores from different devices.
Can I train at home?
Yes. Tell TACK what equipment you have, including bodyweight-only options. You can also set your training goals and how many days a week you want to train.
What does the accountability coach do?
It helps you plan your next step, reflects on logged workouts, and offers optional check-in and training reminders. Notifications depend on your permissions and iPhone settings. AI guidance can be wrong and is not medical advice.
What happens to my health data?
Your workout records and synced summaries are stored on your device. Optional wearable connections and cloud coaching also process information through service providers. Read our Privacy Policy for details and controls.
How do I report a bug or ask for help?
In TestFlight, open TACK and tap “Send Beta Feedback.” For help, email info@trainwithtack.com. Include what happened and your iPhone model; avoid sending private health details.
YOUR NEXT STEP DOESN’T HAVE TO BE A BIG ONE.
Find your angle.
Keep moving.
Join the iPhone beta For real life. For your next workout. For you.