These Terms of Service ("Terms") govern the use of the iOS application "HalfCaff" ("the App") provided by decoy284 ("we", "us"). By using the App, you agree to these Terms.
2. Service Description
The App is a tool for recording and managing caffeine intake. It provides the following features:
Recording and managing caffeine intake
Real-time caffeine level calculation based on half-life decay
24-hour caffeine curve chart
Go / Caution / Stop drink advice
Home screen widgets and Live Activities
3. Subscriptions
Some features require a paid subscription ("Pro Plan").
Pro Plans are available as weekly, monthly, or yearly subscriptions.
New users receive a 3-day free trial.
Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period.
Manage or cancel subscriptions in iPhone Settings → Apple ID → Subscriptions.
Payment is charged to your Apple ID account.
4. Disclaimer
The App does not provide medical advice or diagnosis. Always consult a healthcare professional for decisions regarding caffeine intake.
We are not liable for data loss, temporary unavailability of the App, or failures of third-party services.
5. Intellectual Property
All intellectual property rights in the App belong to us. Data recorded by users belongs to the users.
6. Prohibited Activities
Reverse engineering or decompiling the App
Unauthorized use or attempted unauthorized use of the App
Any activity that violates applicable laws
7. Changes to Terms
We may update these Terms as needed. Updated Terms take effect when posted on this page.
8. Governing Law
These Terms are governed by the laws of Japan. Any disputes shall be subject to the exclusive jurisdiction of the Tokyo District Court.