Privacy Policy

Last updated: 21 June 2026

Who we are

Seize the Week ("the app") is an iOS application published under the Carpe Diem umbrella. This policy explains what the app does and does not do with your information. You can reach us any time at [email protected].

Data we collect

We, the developer, operate no servers of our own and run no first-party analytics or crash-reporting. The app does not send your personal information — including your Apple Health data — to us.

The app is free and shows no ads. The only information that may leave your device is shared through Apple's Game Center, and only if you opt in to the Compete (friends and leaderboards) feature — see Game Center & friends below. Because of that, the app's Apple App Store privacy label is not “Data Not Collected”: it discloses the two Game Center data types described below (your player alias and your leaderboard scores). No advertising data is collected.

Apple Health data

With your explicit permission, the app reads the following Apple Health data read-only (it never writes anything back) to compute and display a personal life-expectancy estimate entirely on your device:

• Date of birth and biological sex — to set your actuarial baseline.
• VO₂ max, resting heart rate, and heart rate variability — cardiovascular fitness.
• Steps and exercise minutes — physical activity.
• Sleep analysis — sleep duration.
• Body mass and height — BMI.
• Blood pressure (systolic / diastolic).

This data is processed only on your device. It is never transmitted to us, sold, shared, or used for advertising. You can revoke the app's Health access at any time in Settings → Privacy & Security → Health.

iCloud sync

If you are signed in to iCloud, the app syncs your settings and your history of estimates through your own private iCloud (CloudKit private database). This data is governed by Apple's privacy policy and is accessible only to you on your own devices. We, the developer, cannot access it. If you are signed out of iCloud, the app stores everything locally on your device only.

Game Center & friends

Seize the Week includes an optional Compete feature (friends and leaderboards) built on Apple's Game Center. It is off until you choose to use it. When you do, two pieces of information are shared with your Game Center friends through Apple's Game Center:

• Your Game Center nickname (player alias) — an identifier Apple associates with your Game Center account.
• Your three leaderboard scores — each derived from the life-expectancy estimate computed on your device.

All of this is handled by Apple under Apple's Privacy Policy. The app keeps no separate account, and stores none of this on servers of our own — we, the developer, run no servers. You can turn Game Center off at any time in Settings → Game Center, which stops this sharing.

What we don't do

• No accounts or sign-ups.
• We never collect, sell, or share your Apple Health data.
• Your Health data is never shared with advertisers or used to target ads.
• No ads, no ad SDKs, and no analytics or tracking — by us or any third party.

Children

The app contains no objectionable content, but it is designed for a general audience and is not directed at children under 13.

Not medical advice

Seize the Week is a motivational visualization, not a medical prediction, diagnosis, or health advice. The estimate is an illustration of how habits may move the odds, based on published population research — not a forecast of your individual lifespan.

Changes

If this policy changes, we will update the date above and post the revised version at this address.

Contact

Questions? Email [email protected].