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Terms of Use
Last Updated: August 2025
These Terms of Use ("Terms") govern your use of Calzo: NumSum Puzzle ("the App").
By downloading, installing, or using the App, you agree to be bound by these Terms.
Important: If you do not agree to these Terms, you may not use the App.
1. License Grant
Subject to these Terms, we grant you a revocable, non-exclusive, non-transferable license
to use the App for personal, non-commercial purposes.
2. Terms of Use
2.1 Permitted Use
- Personal entertainment purposes
- Brain training and puzzle gaming
- Installation on devices you own or control
2.2 Prohibited Activities
You may not:
- Reverse engineer, decompile, or disassemble the App
- Modify, adapt, or create derivative works of the App
- Sell, redistribute, rent, or lease the App
- Manipulate game progress or scores through unauthorized means
- Use automation tools or bots
- Interfere with other users' use of the App
3. Premium Subscription
3.1 Service Features
Premium members receive the following benefits:
- Complete removal of advertisements
- Increased lives to 3 (standard is 2)
- Access to future premium-exclusive features
3.2 Fees and Payment
- Monthly subscription fee applies
- Price is as displayed in App Store / Google Play
- Payment is processed through Apple / Google
- Subscription automatically renews
3.3 Auto-Renewal
Notice: Your subscription will automatically renew until you cancel it.
Unless you cancel at least 24 hours before the end of the current period,
you will be automatically charged for the next period.
3.4 How to Cancel
For iOS (iPhone/iPad):
- Open Settings app
- Tap [Your Name] at the top
- Tap "Subscriptions"
- Select "Calzo: NumSum Puzzle"
- Tap "Cancel Subscription"
For Android:
- Open Google Play app
- Select "Subscriptions" from menu
- Select "Calzo: NumSum Puzzle"
- Tap "Cancel Subscription"
3.5 Refund Policy
Refunds are processed according to App Store / Google Play policies.
The app developer cannot issue refunds directly.
4. Intellectual Property
The App and all its content (graphics, audio, text, software code, etc.)
are the intellectual property of the developer or its licensors,
protected by copyright and other intellectual property laws.
5. Privacy
For information about how we handle your personal information,
please refer to our Privacy Policy.
6. Disclaimer
The App is provided "as is" without warranties of any kind,
whether express or implied. The developer is not liable for:
- Damages arising from use of the App
- Data loss or corruption
- Service interruptions or discontinuation
- Technical malfunctions or errors
- Issues arising from third-party services
7. Limitation of Liability
To the maximum extent permitted by applicable law,
the developer's liability shall not exceed the amount you actually paid for the App.
8. Changes and Termination
8.1 App Changes
The developer reserves the right to modify, update, or discontinue the App
without prior notice.
8.2 Terms Changes
These Terms may be modified as necessary.
We will notify you of significant changes within the App.
9. Governing Law
These Terms shall be governed by and construed in accordance with the laws of Japan.
Any disputes relating to these Terms shall be subject to the exclusive jurisdiction
of the courts of Japan.
10. Contact Us
If you have questions about these Terms, please refer to our main page for contact information.