Last Updated: April 19, 2026
These Terms of Service ("Terms") govern your use of the Calenflow mobile application ("App") operated by Takumi Sakai ("we," "us," or "our"). By accessing or using the App, you agree to be bound by these Terms.
Calenflow is a productivity and ToDo application designed to help users manage tasks, goals, and schedules.
Calenflow offers three types of premium access: Monthly Subscription, Yearly Subscription, and Lifetime Access (One-time purchase).
Auto-Renewal: Subscriptions (Monthly and Yearly) automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period.
Billing: Your account will be charged for renewal within 24 hours prior to the end of the current period, at the cost of the chosen plan.
Management: You can manage or cancel your subscription and turn off auto-renewal at any time by going to your Account Settings on the Google Play Store after purchase.
Lifetime Access: The "Lifetime Access" is a one-time purchase. No subscription or renewal fees apply to this plan.
Refunds: All purchases and subscriptions are handled by the Google Play Store. Please refer to their refund policies.
You are responsible for maintaining the confidentiality of your account and for all activities that occur under your account.
You agree not to use the App for any unlawful purpose or in any way that interrupts, damages, or impairs the App's efficiency.
The App is provided "as is" without any warranties. In no event shall Takumi Sakai be liable for any indirect, incidental, or consequential damages, including loss of data or profit, arising out of the use or inability to use the App.
Your use of the App is also governed by our Privacy Policy, which can be found at: Privacy Policy
These Terms shall be governed by and construed in accordance with the laws of Japan, without regard to its conflict of law provisions.
We reserve the right to modify these Terms at any time. We will notify you of any changes by updating the "Last Updated" date at the top of these Terms.
If you have any questions about these Terms, please contact us at: support.calenflow@gmail.com