Terms of Service

Effective and last updated: September 30, 2026

These Terms of Service (these “Terms”) govern access to the Interval Games mobile application, interval.games, and the related daily puzzles, gameplay, progress syncing, and statistics features we provide (collectively, the “Service”). The Service is operated by Callback AI Solutions Inc., a Delaware corporation (“Interval Games,” “we,” “us,” or “our”). “You” means the person using the Service.

By accepting these Terms, or using the Service after being given notice of them, you agree to these Terms. If you do not agree, you may not use the Service. Our Privacy Policy explains our handling of information in connection with the Service.

1. Eligibility and accounts

You must be at least 13 years old, meet any higher minimum age required where you live, and be legally eligible to use the Service. If you have not reached the age of legal majority, your parent or guardian must agree to these Terms on your behalf and supervise your use. Interval Games is not a service directed to young children.

The app creates a player account and session even when you do not provide a name or email address. When available, optional Sign in with Apple can associate that player account with an Apple identity. Keep information you provide accurate, protect your device and sign-in credentials, and notify us of suspected unauthorized access. You are responsible for use you authorize, subject to applicable law.

An account without a connected sign-in provider may not be recoverable if you lose access to its session. Uninstalling the app or signing out does not itself delete server-side account data. Account deletion is described in our Privacy Policy.

2. The Service and your license

Interval Games provides daily puzzles, including Flagged, Harmony, and Departures, with saved progress and personal statistics. Subject to these Terms, we permit you to access and use the Service for your personal, noncommercial purposes. This permission is limited, nonexclusive, nontransferable, and may end as provided in these Terms. It does not transfer ownership of the Service or third-party material.

Our software, service design, branding, artwork, and original puzzle materials are protected by applicable intellectual property laws. Rights not expressly granted are reserved. This does not assert ownership of general game ideas or mechanics, public-domain facts, or material licensed by others. Applicable open-source and third-party licenses remain in effect.

For an app obtained from Apple’s App Store, Apple’s Standard End User License Agreement governs the downloaded software unless a different license is supplied with it. These Terms govern the Interval Games service and supplement that software license only where consistent with it. Applicable store usage rules, including permitted device and family use, remain in effect. Contact Interval Games for app support; these Terms do not impose support or other obligations on Apple.

You are responsible for a compatible device, connectivity, applicable carrier charges, and installing updates needed for compatibility or security. The current Service is free and has no paid subscription or in-app purchases. If we introduce paid features, their prices and applicable purchase terms will be disclosed before you authorize a charge.

3. Daily puzzles, progress, and statistics

Puzzles are published in daily editions. Available games, board sizes, constraints, and difficulty may vary. Difficulty labels describe intended challenge rather than a guarantee of how difficult a puzzle will be for you. A daily publication does not promise that every puzzle or past edition will remain available indefinitely.

Downloaded puzzles can be played offline. An internet connection is required to obtain new puzzles, authenticate, and sync progress. Local progress may not yet be reflected on the server or another device. Removing the app, losing access to a device or session, or interrupting a sync may result in inaccessible or lost progress.

Solve times, streaks, results, and other statistics are provided for personal enjoyment. They depend on available records and may change if data is corrected, reset, deleted, or synced. They are not independently verified competitive records and have no cash value. The current Service offers no wagering or cash prizes.

We may correct, replace, or withdraw a defective puzzle or inaccurate result. We do not guarantee uninterrupted daily availability, a particular difficulty, or permanent preservation of a streak. Mandatory rights under applicable law remain unaffected.

4. Departures and third-party information

Departures uses airport and route information from third-party sources to create guessing puzzles. The route catalog is a sampled, point-in-time dataset, not a complete or live list of flights. Distances and directions are game clues, and airline, aircraft, duration, and route information may be approximate, incomplete, historical, or no longer current.

Departures is for entertainment, not travel planning, navigation, booking, or aviation safety. Do not rely on a puzzle to determine whether a flight operates, seats are available, or a particular airline or aircraft will serve a route. Verify travel arrangements directly with the relevant provider.

Third-party names, trademarks, and data belong to their respective owners where applicable. Their inclusion does not imply sponsorship, endorsement, or affiliation with Interval Games. Third-party licenses and attribution requirements remain applicable; these Terms do not grant rights beyond them.

Links to external sites are provided for convenience. Their operators control their content, terms, and privacy practices. Transactions and disputes with an airline, booking service, or other external provider are between you and that provider.

5. Private inputs and product feedback

You retain any rights you have in support messages, screenshots, suggestions, and other materials you voluntarily provide (“Submissions”). You represent that you have the rights and authority needed to provide them and that they comply with these Terms and applicable law.

You grant Interval Games a nonexclusive, worldwide, royalty-free license to store, reproduce, process, adapt, and transmit Submissions to operate, provide, maintain, secure, and improve the Service and respond to you, including through service providers performing those functions. This license is subject to the uses and retention described in the Privacy Policy. It does not authorize us to publish your private support messages or identifying information. Gameplay data is handled as described in the Privacy Policy.

If you voluntarily provide ideas, suggestions, or product feedback, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use and incorporate that feedback into our products and services without compensation or attribution. Personal information in feedback remains subject to the Privacy Policy. This license does not require transferring ownership of an independent consumer review.

6. Acceptable use

You must not use the Service to:

• violate applicable law, infringe intellectual property or privacy rights, impersonate another person, or provide material you do not have the right to submit;
• harass, threaten, exploit, or harm others, or submit unlawful or malicious material;
• gain unauthorized access to accounts, systems, credentials, or data, or introduce malware;
• interfere with the Service, overload infrastructure, evade rate limits, or bypass authentication, security, or other access controls;
• extract or redistribute Service data in violation of applicable law or these Terms, or use automated access in a way that disrupts the Service;
• resell access to the Service or falsely claim that you represent Interval Games;
• harvest information about other players or attempt to enumerate accounts to collect personal information, or use the Service for unsolicited bulk communications;
• create replacement accounts to evade a suspension, restriction, or usage limit; or
• copy, modify, redistribute, reverse engineer, or remove proprietary notices from Interval Games’s software except as an applicable license or law permits. This restriction does not prevent ordinary personal play, sharing your own results or screenshots, or use permitted by a third-party license.

We may investigate suspected misuse and restrict access, remove affected materials, or take other action to protect the Service and others. We do not undertake to monitor every use or identify every violation.

Nothing here prevents an honest review of Interval Games, a lawful report to an authority, or the exercise of a right that cannot be waived.

7. Privacy and communications

Our Privacy Policy describes the handling of information in connection with the Service. We may send service, security, and legal notices through the app, website, or contact information you provide. You are responsible for keeping that contact information current.

8. Availability, changes, and beta features

Subject to applicable law and any applicable purchase terms, we may modify, replace, limit, suspend, or discontinue all or part of the Service, including features, content, and usage limits, with or without advance notice. We do not guarantee availability, continued support, a particular puzzle, or continued access to an edition or feature.

Beta and experimental features may contain errors, change substantially, be withdrawn, or require resetting accounts or data. The Service is not an archival or backup service. Keep separate copies or records of information you need to preserve. Any notice or remedy required by applicable law remains available.

9. Suspension and termination

You may stop using the Service at any time and request account deletion. We may suspend, restrict, or terminate access if we reasonably believe you have violated these Terms, your use presents a security, legal, or abuse risk, or continued access is incompatible with our operational requirements. We may also end access when discontinuing the Service. Unless applicable law requires otherwise, action may be immediate and does not require prior notice or an opportunity to cure.

When access ends, your license to use the affected Service ends. You may not evade a restriction by opening a replacement account without our permission. We may terminate repeat infringers in appropriate circumstances. Retention and deletion are governed by the Privacy Policy.

Provisions that by their nature should survive continue in effect, including ownership, applicable licenses, accrued obligations, disclaimers, limitations of liability, indemnification, and dispute provisions. Termination does not eliminate an obligation or remedy that applicable law requires.

10. Intellectual property and content concerns

If you believe an Interval Games puzzle, image, dataset use, or other Service material infringes your rights, email support@interval.games. Identify the work and rights involved, the affected game and edition date or URL, the reason for your concern, your contact information, and your authority to act for the rights holder. You may also report inaccurate clues or a privacy concern.

We may request information reasonably needed to assess a complaint and may remove material or limit access while reviewing it. Removing material from Interval Games does not remove it from an independent third-party source. This contact process does not limit any statutory notice procedure or remedy available to you.

For a copyright complaint, also provide your physical or electronic signature, contact address and telephone number, a good-faith statement that the disputed use is not authorized by the owner, its agent, or law, and a statement that the notice is accurate and, under penalty of perjury, you are authorized to act for the owner of the allegedly infringed exclusive right. We may seek clarification and review a removal again if reliable new information is provided. Do not include unrelated sensitive personal information in a complaint.

11. Disclaimers

To the maximum extent permitted by applicable law, the Service and materials provided through it are offered “as is” and “as available,” without warranties of any kind, express, implied, or statutory. We disclaim warranties of merchantability, fitness for a particular purpose, title, non-infringement, and those arising from a course of dealing or trade usage. We do not warrant that the Service, puzzles, or third-party information will be accurate, complete, suitable, uninterrupted, secure, or free from errors or harmful components, or that defects will be corrected. Information or advice provided through the Service does not create a warranty not expressly stated in these Terms.

The limitations, exclusions, and other provisions in these Terms apply only to the extent permitted by applicable law. Nothing in these Terms excludes or limits a liability, warranty, remedy, or right that cannot lawfully be excluded or limited, including under applicable consumer or privacy law. Where a provision cannot be applied in full, it applies to the extent legally permitted.

12. Limits of liability and indemnification

To the maximum extent permitted by applicable law, Callback AI Solutions Inc. and its affiliates, directors, officers, employees, and agents (the “Interval Games Parties”) will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, revenue, business opportunities, goodwill, use, or data arising out of or relating to the Service or these Terms. This applies regardless of the legal theory and even if an Interval Games Party was advised of the possibility of the loss.

To the maximum extent permitted by applicable law, the combined aggregate liability of the Interval Games Parties to you for all claims arising out of or relating to the Service or these Terms will not exceed the greater of US$100 or the amount you paid Interval Games for the Service during the 12 months before the first event giving rise to the claims. This is a single aggregate limit, not a separate limit for each claim, event, defendant, or legal theory. These limitations apply to claims in contract, tort (including negligence), statute, or otherwise, and even if a remedy fails of its essential purpose. They are subject to section 11 and do not limit liability that cannot lawfully be limited.

Third-party claims. To the extent permitted by applicable law, you agree to defend, indemnify, and hold the Interval Games Parties harmless from third-party claims and resulting liabilities, damages, judgments, settlements, and reasonable costs and legal fees arising from your breach of these Terms, unlawful use of the Service, or Submissions that infringe or violate another party’s rights. This obligation applies only to the extent the claim is attributable to those acts. It does not cover loss caused by an Interval Games Party’s negligence, misconduct, or breach of these Terms or law, or your own good-faith claim against us.

We will give notice of a claim for which we seek indemnification; a delay relieves your obligations only to the extent it materially prejudices the defense. We may control the defense and settlement through counsel we select, and you will reasonably cooperate. You may participate with your own counsel at your expense. You may not settle a claim imposing an obligation on an Interval Games Party without our written consent. We will not settle a claim requiring your admission of fault or a nonmonetary obligation without your written consent. This paragraph remains subject to the limits in the preceding paragraph and applicable law.

13. Governing law and disputes

Delaware law governs these Terms without regard to its conflict-of-law rules. Subject to any mandatory right to bring proceedings elsewhere, the state and federal courts located in Delaware have exclusive jurisdiction over disputes arising out of or relating to these Terms or the Service, and you and Interval Games consent to that jurisdiction and venue. This choice does not displace nonwaivable protections of applicable law.

Before commencing a lawsuit, you and Interval Games agree, to the extent permitted by law, to provide written notice describing the dispute and requested relief and to attempt in good faith to resolve it for 30 days after receipt. Send your notice to support@interval.games; we will send ours to contact information associated with your account, if available. This process does not apply to small-claims proceedings, urgent injunctive relief, regulatory complaints, or statutory privacy requests. It does not prevent a filing needed to preserve a deadline or exercise a nonwaivable right. If no contact method is available for us to send notice to you, that notice requirement does not apply to us.

14. Changes to these Terms

We may revise these Terms and will post the revised version with its effective date. We will provide additional notice of material changes and obtain agreement where required by applicable law. Subject to those requirements, use of the Service after revised Terms take effect constitutes acceptance. Changes do not retroactively alter a dispute arising before their effective date. If you do not agree to revised Terms, stop using the Service.

15. General provisions

These Terms and any additional terms expressly presented for a feature you choose constitute the entire agreement about the Service and supersede prior agreements on that subject. Additional feature terms control only for their stated subject, subject to required notice and agreement. The Privacy Policy remains the notice describing our information practices. A failure or delay in enforcement is not a waiver. If a provision is invalid or unenforceable, it will be limited or severed to the extent permitted by law, and the remainder will continue in effect.

You may not assign these Terms or transfer an account without our written consent except as applicable law permits. We may assign these Terms in connection with a reorganization or transfer of the Service, subject to applicable law. The Interval Games Parties are intended beneficiaries of the protections expressly provided to them. Otherwise, no third party has rights under these Terms except as required by applicable platform terms or law.

To the extent permitted by law, we are not liable for delay or failure caused by events beyond our reasonable control, including natural disasters, war, government action, labor disputes, or telecommunications, utility, or service provider failures. We may restrict availability to comply with export controls, sanctions, or other law. You may not use the Service in violation of those laws. These Terms do not create an agency, partnership, employment, or joint-venture relationship.

16. Contact

Callback AI Solutions Inc., a Delaware corporation
Email: support@interval.games
Website: interval.games