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Solitaire

Terms of Service

Last updated: September 23, 2026

日本語

Article 1 (Applicability)

  1. These Terms of Service (hereinafter referred to as “these Terms”) set forth the conditions for using the smartphone application “Solitaire” (hereinafter referred to as “the App”) provided by comfortech (hereinafter referred to as “the Operator”).
  2. By using the App, users are deemed to have agreed to these Terms. If you do not agree to these Terms, please stop using the App.

Article 2 (Service Overview)

The App is a game application centered on Klondike solitaire, offering pre-generated stages, a Daily Challenge, and Optimal Hints. The App does not display forced advertisements.

Article 3 (Data Management)

  1. The App does not create app-specific accounts. Data such as games in progress, completion status, and appearance settings is saved exclusively on the user’s device.
  2. Users shall manage the data saved on their devices at their own responsibility. The Operator is not responsible for restoring data that is lost due to deletion of the App, or initialization, malfunction, loss, or similar events affecting the device.

Article 4 (Fees and Premium Features)

  1. The basic play of the App (regular Klondike play, trial packs, the Daily Challenge, etc.) is available free of charge.
  2. The App offers premium features, such as unlimited Optimal Hints, unlocking of stage packs, and the Premium Pass, for a fee. Prices, provision periods, and renewal conditions are displayed within the App or on the page of each app store (App Store / Google Play).
  3. One-time purchase products allow permanent use of the relevant features with a single purchase. Subscription products renew automatically for each period shown in the relevant app store and continue unless canceled.
  4. Cancellation of subscriptions, stopping of renewals, refunds, and similar matters are subject to the methods and conditions determined by the app store the user used. Purchases can also be restored on other devices using the same store account through the “Restore Purchases” action.
  5. Except as provided by law or by the terms of the relevant app store, the Operator does not provide refunds for fees that have been paid.

Article 5 (Prohibited Actions)

Users must not engage in any of the following actions when using the App:

  1. Actions that violate laws, court judgments, or public order and morals.
  2. Actions that infringe upon the intellectual property rights, privacy rights, or other rights of the Operator or third parties.
  3. Actions that place an excessive load on the App or related systems, or attempt unauthorized access.
  4. Actions to reverse engineer, decompile, or disassemble the App.
  5. Actions that improperly alter or circumvent the mechanisms of Optimal Hints or stage progression through cheating, use of unauthorized tools, or similar means.
  6. Any other actions deemed inappropriate by the Operator.

Article 6 (Disclaimers)

  1. Suspension or Interruption of Service: The Operator may temporarily suspend or interrupt the provision of the App without prior notice due to system maintenance, failures, or other unavoidable reasons. The Operator assumes no responsibility for any damages incurred by users as a result.
  2. Loss of Data: Because the App treats data saved on the device as the authoritative copy, the Operator assumes no responsibility for the loss of progress data caused by device malfunction, loss, or initialization, deletion of the App, or similar events.
  3. Limitations When Offline: An internet connection is required to send Firebase Analytics events and to purchase or restore premium features. The Operator assumes no responsibility for the inability to use these functions in an offline environment.

Article 7 (Handling of Information)

The Operator handles users’ personal information and user information appropriately in accordance with the separately established “Privacy Policy.” Users agree that the Operator handles information pursuant to that Privacy Policy.

Article 8 (Third-Party Services)

The App uses services provided by third parties (such as RevenueCat, Google Apps Script, and Firebase Analytics provided by Google LLC) to manage the purchase and restoration of premium features, to send inquiries, and to analyze usage. The terms of service and privacy policy of each provider apply to the use of these services.

Article 9 (Changes to Terms)

  1. The Operator may modify these Terms at any time at its discretion.
  2. When modifying these Terms, the Operator will notify users of the changes and the effective date within the App or on the relevant website.
  3. Continued use of the App by users after the effective date of the changes constitutes agreement to the modified Terms.

Article 10 (Governing Law and Jurisdiction)

  1. These Terms shall be governed by and construed in accordance with the laws of Japan.
  2. Any disputes arising in connection with these Terms or the App shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.

Contact Information

For inquiries regarding these Terms, please contact us via the “Settings” > “Contact Us” form within the App.

Operator: comfortech