Stack Tender: Supplement Log
Vitamin & Supplement Tracker
Only for iPhone
Free
iPhone
Scan bottles, build stacks, never forget a dose and read up on what you take. FREE, with no ads and no in-app purchases. Now OPTIMIZED for iPhone Duo!
Stack Tender is the FREE supplement scanner and tracker you're looking for. Bottle scanning is incredibly accurate and the logging and reminder features are flexible. No ads. No in-app purchases. Fast, intuitive UI. Huge catalog of supplement information, including synergies, interactions and contraindications. This is the app for people who take their health supplements seriously.
OPTIMIZED FOR IPHONE DUO
Stack Tender is fully optimized for iPhone Duo. Every feature below is there whether the phone is open or closed, and the app keeps your place as it folds and unfolds.
BUILD YOUR STACKS
Group supplements the way you take them: a morning stack, a sleep stack, one for training days. Each entry carries its amount, the days it runs and the times of day, filled in from the catalog and yours to change. Add a note about why you started. Pause a stack when you stop and it leaves your day; switch it back on when you need it.
SCAN A BOTTLE
Point the camera at a product instead of typing it in: the front, the Supplement Facts panel and the directions. Every ingredient is read off the label with its amount and matched to the catalog, the serving size and the directions become the entry's schedule, and the bottle goes into a stack as one entry counted in servings. You see what was read before it lands and can fix any line. Every bottle you have scanned is kept under Stacks, ready to add to another.
SEE YOUR TOTALS
Every stack adds up what it gives you of each supplement in a day, across its entries and the bottles in it, so the magnesium in a multivitamin counts beside the magnesium you take on its own. Tap a supplement to see every entry and product behind its total.
CHECK OFF EVERY DOSE
Today shows what is due, grouped by time of day. One tap logs a dose, or take a whole group at once. Log something extra you took off schedule, and finish yesterday if you forgot to.
SEE HOW YOU ARE DOING
A calendar shows every day kept, partial or missed, and how many days you kept over the last six weeks.
KNOW WHAT YOU TAKE
A catalog of over two hundred supplements, written for people who read the studies: the recommended dose and timing, whether to take it with food, dosage notes, synergies, interactions and contraindications, and the sources behind each one. Search by name or alias and add a supplement to a stack in two taps.
REMINDERS
Set the times of day your doses fall and get a reminder when some are due.
SHARE AND IMPORT
Make your profile public and share a stack; keep the rest private. Follow people whose stacks you like, star a stack to hear when it changes, and import one into your own, notes and all, to tune from there. A shared stack shows its totals too, and any supplement or product on it can go into a stack of yours from its row. Comment on shared stacks and articles.
WORKS OFFLINE
The app keeps what it has read and queues what you do, so a dose logged without a connection is sent when the connection is back.
Stack Tender is free. Your stacks and your log are private unless you choose to share a stack. Stack Tender is a record of what you take, not medical advice; talk to your clinician about what is right for you.
Terms: https://stacktender.com/terms/
Privacy: https://stacktender.com/privacy/
- Stack Tender is fully optimized for iPhone Duo: every feature is there whether the phone is open or closed, and the app keeps your place as it folds and unfolds.
- A stack's settings are a card on the stack itself: switch it on or off, share it, or delete it, with each question asked on a panel.
- A scan that cannot be read says why, such as a topical product the catalog does not cover.
- Sign in with your username and password in the app, or with Apple.
The developer, Wise Oak, 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 Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Search History
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Wise Oak LLC
- Size
- 13 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Infrequent
Alcohol, Tobacco, Drug Use or References
Contains
Messaging and Chat
User-Generated Content
Health or Wellness Topics
Social Media
- Copyright
- © 2026 Wise Oak LLC
