Seize Day
Carpe Diem
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Adopt a protocol, tick it off daily, and see whether your own Health data actually moved. Now with a home screen widget and a morning nudge that names your day.
Seize Day closes the loop on the habits you adopt — so you keep what works and drop what doesn't, based on your own data instead of hype.
THE CLOSED LOOP
Most habit apps stop at the checkmark. Seize Day goes one step further:
1. Adopt an evidence-based protocol — a focused, plain-language routine for sleep, morning light, movement, nutrition, recovery, focus, supplements, or longevity.
2. Measure the outcome that matters, pulled from Apple Health (sleep, heart rate, steps, and more) — or typed in by hand if you'd rather not connect anything.
3. See whether your numbers actually moved. Seize Day compares a baseline window to the period after you started, and tells you plainly: improved, no change, or not enough data yet.
It's deliberately conservative. It uses a real baseline, guards against the "I started when I felt worst" effect, and won't call a change a win unless the signal is strong enough. Results are always framed as associated with a change — never as proof, and never as medical advice.
WRITTEN FROM SCRATCH, ORGANIZED BY DOMAIN
Every protocol is original prose, grouped by life area — Morning, Sleep, Fitness & Movement, Nutrition, Recovery & Resilience, Focus & Mind, Supplements, and Longevity & Tracking. No reproduced programs, brands, or books. Each one explains why it may help, in terms of what research associates with what. You can also write your own — create a protocol with your own steps and timing, edit any built-in one, and measure it exactly the same way.
WORKS WITH ZERO PERMISSIONS
- Apple Health is optional — the loop runs on manually entered numbers too.
- No sign-in, no account, no setup wall.
YOUR LIFE, IN ONE PLACE
- Your day, hour by hour — lay out your routine as timed blocks and check them off as you go; it repeats daily until you change it
- Habits with day-by-day history
- Yearly goals and the steps under them
- A bucket list for the things you actually want to do
- Quotes to keep the day in view
PRIVATE BY DESIGN
- No account and no Seize Day server.
- What you write stays private to you, on your device.
- Anything read from Apple Health is kept as a device-only cache to power the loop — never sent anywhere, and never shared with advertisers.
- Free, supported by ads. Ads are served through CloudX with InMobi demand, and we ask first — a consent screen appears where required, you can change or withdraw your choice anytime in Settings, and Apple's tracking prompt puts you in control of the advertising identifier. The ad stack is the only third party that collects any data; there's no other analytics or tracking, and a paid upgrade to remove ads is planned.
- Export everything you've authored as a JSON file, or delete all of it, any time.
Seize Day is for general education and self-tracking. It is not a medical device and does not provide medical advice. Always talk to a qualified professional about your health.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, sebastian totte, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- sebastian totte
- Size
- 15.4 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.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 Totté Studios