Your stack. On time.
FastStack Supplements is a simple personal tracker for vitamins, supplements, water, and intermittent fasting — with gentle reminders and optional iCloud sync across your Apple devices.
Built for daily consistency
Take the right supplements at the right times — without noise or accounts.
Today checklist
Timed windows for morning, meals, and custom schedules. One-tap Taken or Skip, with optional reminders on iPhone, iPad, and Mac.
Your stack
Add supplements with dose, form, and schedule. Search product labels to fill details faster. Track inventory; deactivate or delete what you no longer use.
Fasting
Presets and fully custom techniques. Pick start and finish times, schedule later today or tomorrow, and optional start/finish reminders with a live timer.
Water
Log water toward a daily goal from Today — and from Apple Watch when you’re away from the phone.
Watch companion
Checklist, fasting start/end, water, and stack glance on Apple Watch — built to work with your phone.
Private by design
No FastStack account. Data stays on your devices and can sync via your own iCloud. Free, no ads, CSV export when you want your data out.
Get the app
Free on the App Store for iPhone, iPad, Mac, and Apple Watch.