healthmaxxing without distractions 🍵
Your phone, turned into a companion for your body, mind and soul. Starting with Crank, the workout tracker built for strength. Made in Switzerland.

Made for iPhone, works with
- Widgets
- Controls
- Live Activities
- Apple Health
- Siri Shortcuts
- Spotlight
don't take our word take the numbers
1 app out 1 on the way
28
languages
9
city themes, light and dark
6
strength tiers, beginner to elite
everything between you and your next PR
























every exercise nearly 400 of them, with your full history
- Step-by-step instructions and target muscles
- Every set you ever logged, per lift
- Add your own in seconds


every week a streak that counts weeks, not days
- A heatmap of every session
- Your whole year on one screen
- Gaps show up before they grow


rest timer a Live Activity on your Lock Screen
- Glance at it between sets
- 15 seconds more or less, one tap away
- In the Dynamic Island too


share cards ready for your story or the group chat
- A clean card for every session
- Made for Instagram Stories
- Post it to the feed for your friends


Apple Health weight in, workouts out
- Weight and steps come in without typing
- Finished workouts land in Health
- Siri Shortcuts, Spotlight and Controls too


your language 28 of them, and 9 city themes
- Every theme in light and dark
- Sprichst du Deutsch? Crank does
- Strength Wrapped, your year in lifts


quick start training in minutes
Crank
Gym & Workout Tracker
Step 1
download Crank
on the App Store
Bench Press
- 180 kg × 8
- 280 kg × 8
- 382.5 kg × 6
Step 2
log your first set
88 ready-made plans, 3 to 6 days a week
Volume this week
- Chest
- Back
- Legs
Step 3
watch the map fill in
every muscle you trained lights up
one studio starting with Crank
Crank out now
A workout tracker built for strength. Log sets, map muscles and see exactly where you stand.
Get Crank



friggy coming soon
Snap your fridge. Find your next meal. Three recipes from what you already have, a timer while you cook and a log of every plate.
by lifters for lifters
emptea
hey 👋 we're emptea, a small app studio in Switzerland.
most health apps want you to keep scrolling. we built Crank so you can log your set and get back to it. friggy is next.
you
i'm in 🙌
no bulls**t pricing one plan for Crank, everything in it
Ultra Crank's only plan
Eligible new subscribers start with a free trial. After that it's a yearly plan, or one payment for lifetime. Nothing is locked behind a higher tier.
Every emptea app has its own subscription. Crank Ultra covers Crank.
everything in Crank Ultra, included
- Log every set, for as long as you lift
- 88 ready-made plans, or build your own
- Body map, PRs and strength standards
- Rest timer Live Activity, widgets and controls
- Leaderboards, feed and share cards
- Apple Health, Siri Shortcuts and Spotlight
- 28 languages and 9 city themes
Something missing? tell us ↗
your questions, answered
How much does Crank cost?
Crank Ultra is one plan with everything in it. Eligible new subscribers start with a free trial, then it's a yearly subscription or a one-time lifetime purchase. Current prices show in the app.
Does Crank Ultra include friggy?
No. Every emptea app has its own subscription. Crank Ultra covers Crank, and friggy will have its own.
Does Crank remember my last workout?
Yes. Pick one of 88 ready-made plans or build your own, and Crank fills in the weight and reps from last time.
Does it work with Apple Health?
Both ways. Weight and steps come in, finished workouts go out. Siri Shortcuts, Spotlight and Controls work too.
Can I add my own exercises?
Yes. Nearly 400 exercises come with step-by-step instructions, target muscles and your full history, and you can add your own.
Which devices and languages are supported?
Crank is made for iPhone, iOS 26 or later. It speaks 28 languages and comes with 9 city themes, each in light and dark.
What is friggy?
The next emptea app. Snap a photo of your fridge and friggy suggests three recipes from what you already have, with a timer while you cook and a log of every plate. Coming soon to the App Store.
