Save a move once. Pick the side.
Mark each exercise as bilateral or unilateral. Add Bulgarian Split Squat to a class and tap Left or Right instead of typing it twice.
On the App Store November 19. Pre-order now.
Prepared to lead. Free to adapt.
Build your class on your iPhone. Teach it from your Apple Watch, with your phone nowhere near you.
Pre-order on the App Store
Look around free with a sample class · 14-day trial when you're ready
10:09
Lower Body·8:14
90° Hold0:12
Bulgarian Split Squat (L)
1:42
Next: Curtsy Lunge (L)
Why it exists
Timer apps weren't made for teaching.
You think in blocks, exercises and sides. Your timer thinks in a flat list of intervals. So you retype every move twice, do the block math in your head, and keep your phone close in case something goes wrong.
shakeshift. is built around how a class is actually taught.
On your iPhone
Build it the way you teach it.
Your classes, blocks and cues, laid out the way you think about them.
What's inside
Four things no timer app does.
Cues that live inside the exercise.
Drop a 90° hold at 1:30 into a 3:00 lunge. The lunge stays 3:00, and your watch gives the hold its own countdown and tap.
Read the room.
Tap Abandon Sequence to drop the planned moves and freestyle. Your block timer keeps running, and Back to Plan brings them back.
Block math, done for you.
Every block shows 12:30 of 15:00 as you build, with a flag for short, on target or over.
Taps you can tell apart
A different tap for each new exercise, cue, countdown and block.
Templates
Start new classes from the formats you teach most.
Spreadsheet import
Bring your moves in from Excel or CSV.
Your rules, flagged
Get a heads-up if a class ends on one side.
Class sheets
Print every exercise, time and piece of equipment.
Share with coaches
Send a class by AirDrop, Messages or email.
Crash-proof timing
If the watch app closes, it reopens at the right spot.
Apple Health
Save each class as a workout.
Folders and Archived
File classes by studio or format, and put away the ones you're resting.
Practice Run
Rehearse a class on your phone with the same timer as your watch.
Backup and restore
Save your whole library to a file anytime, and bring it back on a new phone.
Taught history
See when you last taught each class.
The difference
Stop rigging. Start teaching.
| What coaches need | Timer apps | shakeshift. |
|---|---|---|
| Blocks, exercises and sides | A flat list of intervals | Blocks, exercises, Left/Right and cues |
| Block times that add up | Do the math yourself | Live time check on every block |
| A cue mid-exercise | Split it into extra intervals | Cues placed inside the exercise |
| Change plans mid-class | Stop and lose your place | Abandon Sequence and Back to Plan |
| Organize lots of classes | One long list | Folders and Archived |
| Catch programming mistakes | Nothing | Your own rules, flagged while you build |
| Feel cues without looking | One generic buzz | A distinct tap for each moment |
Plans
For every coach, and every studio.
The founder
Built by a coach, for coaches.
Hi, I'm Maddy. I've taught more classes than I can count off timer apps that were never made for coaches. We all rig them to work, and they still get in the way.
I built shakeshift. because I needed it. I use it to teach my own classes, and a group of coaches has been shaping it in beta since October.
Maddy, founder of shakeshift.
From the beta
Thank you, coaches.
Our beta coaches taught real classes with shakeshift. and told me what to fix. The app you can pre-order today is better because of them.
FAQ
Questions coaches ask.
Do I need an Apple Watch?
You can build classes on your iPhone without one. Teaching from your wrist is where shakeshift. shines.
What type of coach is it for?
Any group fitness coach or instructor who teaches timed classes: Pilates, barre, HIIT, strength, cycle, bootcamp and more. If your class runs in blocks of timed exercises, shakeshift. is built for you.
Do I need to keep my phone nearby while I teach?
No. Once you send a class to your watch, it runs on its own. Lowering your wrist never pauses anything.
Can I import my exercises?
Yes. Bring your exercise list in from an Excel or CSV file, including times, sides and equipment. From Google Sheets or Numbers, export to Excel or CSV first. Your moves land in your exercise library, ready to build classes from.
Can I try it before I pay?
Yes. Open the sample class, look around and Practice Run it for free. You pick a plan and start your 14-day trial when you create your first class.
What happens to my data?
Your classes are saved on your iPhone and Apple Watch. To keep a copy, save a backup file anytime from Settings > Backup in the app. Read the privacy policy.
Do you have plans for studios?
Yes. Studios pay one yearly bill for their whole team, from $29 per coach. Send classes to your coaches, invite them by link, and every coach keeps their own library. See studio plans.
How do I cancel?
Open Settings on your iPhone, tap your name, then Subscriptions, and choose shakeshift.
Which iPhone and Apple Watch do I need?
An iPhone with iOS 26, and an Apple Watch with watchOS 10 or later to teach from your wrist. That covers Apple Watch Series 4, SE (1st generation) and newer.
Is it on Android?
Not right now. shakeshift. is made for iPhone and Apple Watch.
Support Center
Everything you need, from day one.
Step-by-step guides for your first class, every feature, and the best practices coaches use to plan faster and teach freer.
Getting startedYour first 30 minutes, step by step.
Build a classTemplates, blocks, cues and rules.
Teach from your watchControls, taps and Abandon Sequence.
TroubleshootingQuick fixes for common problems.
Visit the Support Center
Still stuck? Email [email protected]
Pre-order shakeshift.
It downloads to your iPhone on November 19. Look around free with a sample class, then start your 14-day trial when you're ready.
Pre-order on the App StoreAvailable November 19