Creatine Tank: Daily Tracker
Monohydrate loading & dose
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Log creatine in two taps and watch the tank fill. See your estimated saturation and days to full. No more wondering if one missed day undid it all. One-time purchase.
Creatine Tank turns your creatine habit into something you can see: a tank that fills up as you keep going.
You take it every day, but you never really know how full you are.
You skip one day and wonder if you've undone everything.
Creatine Tank answers both with one number and one picture.
■ One or two taps to log
Tap 5g, tap Log it. No number keyboard, ever.
Save the products you use and pick them with a single tap.
Took it a while ago? "30 min ago" and "1 hr ago" are right there.
■ See your estimated saturation as a tank
From your logged intake, body weight, diet and the days since you started, Creatine Tank
estimates how full your creatine stores are and shows it as a tank from 0 to 100%.
The liquid rises a little every time you log.
- Six phases: Starting, Building, Near Full, Saturated, Maintenance, Paused
- "Estimated time to full" tells you what's ahead
- Missing one day barely moves the needle. Take a break and it comes back gradually
■ Look back on what you've built
The calendar shows at a glance which days you hit your goal, which were partial, and which you missed.
Analysis charts your saturation trend and the breakdown of what you took.
■ Intake plans
Switch between Standard, Loading and Maintenance and the suggested amount adjusts to your body weight.
You always know which phase you're in and roughly when you'll reach full.
■ Widgets
Keep your saturation and today's intake on your Home Screen and Lock Screen.
[ Creatine Tank Pro (one-time purchase) ]
Pay once and everything below unlocks. There is no subscription and nothing auto-renews.
- Apple Watch app - log +3g or +5g from your wrist
- Large widget, plus a widget with +3g / +5g buttons
- 90-day analysis
- Stats tab - this month's summary and how it lines up with your training
- Set your own daily target
- Save unlimited products
- CSV export
Logging, Home, Calendar and the 7- and 30-day analysis stay free forever.
[ Before you start ]
Creatine Tank is not a medical device. The "estimated saturation" it shows is calculated from
what you log - it is not a measurement of the creatine in your body.
If you have any concerns about supplements or your health, or if you have a medical condition
or take medication, please talk to a doctor or pharmacist.
What you log stays on your device. It is never sent to the developer or any third party.
Health is only read for body weight and workouts - nothing is ever written back.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Easier to find on the App Store
- Small display refinements
Requests and bug reports are always welcome.
The developer, kazunari aoki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- kazunari aoki
- Size
- 7.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Creatine Tank Pro $5.99
- Copyright
- © 2026 kazunari aoki