Last updated: May 14, 2026

Welcome to 7-Cal.com, operated by 7BIT LIMITED (“we,” “us,” or “our”). By accessing or using our website, products, or services, you agree to these Terms & Conditions. If you do not agree, please discontinue use immediately.

1. Eligibility & Use of the Website

You agree to use this website only for lawful purposes and in a manner that does not infringe the rights of others. You must be at least 16 years old to use our website or make a purchase. Users under 18 should use the site only under the supervision of a parent or guardian.

2. Account Registration

To access certain services (such as the backend panel or subscription management), you may need to create an account.

You are responsible for maintaining the confidentiality of your login information.

We reserve the right to suspend or terminate your account at our discretion if we detect misuse, fraud, or policy violations.

3. Product Information & Availability

We strive to display accurate product information, but typographical errors or inaccuracies may occur.

All product descriptions, images, and specifications are subject to change without prior notice. We may modify, suspend, or discontinue any product or service at any time without liability.

Mainland China Usage: We do not sell to or provide service for Mainland China. Please do not purchase this device for use in Mainland China. This device cannot be used in Mainland China. Any purchase, shipment, resale, or use of this device in Mainland China is at the customer’s own risk and does not qualify for any refund, return, warranty claim, replacement, compensation, service support, or payment dispute.

4. Pricing & Payments

Prices are displayed in USD unless otherwise stated. We accept secure payments processed through authorized third-party payment providers (such as credit/debit cards, Apple Pay, Google Pay, or other regional options).

You agree to provide accurate billing and shipping information.

We reserve the right to refuse or cancel any order at our discretion, including but not limited to cases of suspected fraud, pricing errors, product availability issues, or violations of these Terms. If payment has already been processed, a refund will be issued to the original payment method. Non-refundable payment processing fees and/or shipping fees may be deducted where permitted by law.

All purchases are subject to our Return, Refund & Warranty Policy and Shipping Policy, which form part of these Terms. In case of any conflict, the Return, Refund & Warranty Policy and Shipping Policy shall prevail for matters related to returns, refunds, warranties, and shipping.

5. Subscriptions, Credits & Digital Services

Use of our AI services requires an active subscription or credits. Subscription renewals and credit usage are governed by their respective terms, as described on our website.

Once activated or used, digital subscriptions and credits are non-refundable.

We reserve the right to modify pricing, features, credit rates, or access to digital services on our platform, including suspending or discontinuing such services at our discretion. AI responses are generated by third-party models and may be inaccurate or incomplete.

6. Intellectual Property

All content on this website, including text, graphics, images, logos, and icons, is the property of 7BIT LIMITED or its licensors. You may not reproduce, distribute, or create derivative works without prior written consent.

If you believe any content on our website infringes your copyright, please contact us immediately at support@7-cal.com with supporting details.

7. Resale and Official Affiliation

We do not appoint or authorize any official resellers, distributors, agents, or partners unless explicitly stated on this website. Warranty and official customer support are provided only for products purchased directly through our official website.

Third parties may independently purchase and resell our products; however, such resale does not create any affiliation, partnership, endorsement, or authorization by us.

No purchaser or third party is permitted to represent themselves as an official reseller, distributor, partner, or representative of 7-Cal without prior written authorization from us. We shall not be responsible for any claims, representations, warranties, or services provided by such third parties.

8. User Content & Conduct

If you upload or share any materials (such as files, feedback, or data), you grant us a non-exclusive, royalty-free license to use such materials solely for improving our products and services.

You agree not to: Upload or distribute any harmful, illegal, or infringing materials; Attempt to hack, reverse-engineer, or exploit any part of our website, systems, or devices; Use our website or devices for unauthorized or unethical purposes (e.g., fraudulent or dishonest purposes, or data manipulation).

The device is a standard calculator with optional features accessed in a separate mode. Users are responsible for complying with local regulations and exam policies.

9. Warranty Disclaimer

Products come with a limited one-year hardware warranty covering manufacturing defects under normal use. AI, SIM card, offline file, and online features are provided “as is” without any warranties, express or implied, regarding availability, accuracy, or uninterrupted service.

We are not responsible for service interruptions, third-party API downtime, or data loss.

10. Abuse, Fraud, or Misuse of Service

We reserve the right, at our sole discretion, to refuse service, cancel orders, limit support, suspend accounts, or restrict access to any part of our services, including AI features, connectivity, and digital services, if we reasonably determine that a customer has engaged in abusive, fraudulent, or bad-faith behavior. This includes, but is not limited to, misuse of order or tracking information, unauthorized or misleading transactions, abuse of refund or support policies, harassment, or filing unwarranted payment disputes without first contacting our support team.

In such cases, we may take enforcement actions, including restricting or suspending access to services and associated accounts, devices, or payment methods.

These actions apply to service access only and do not affect the core functionality of the physical device. Such actions do not constitute a product defect or failure of delivery, and do not entitle the customer to any refund, replacement, or chargeback.

11. Limitation of Liability

To the fullest extent permitted by law, we are not liable for any indirect, incidental, or consequential damages arising from your use of our website or products. Our total liability shall not exceed the amount paid for the product or service giving rise to the claim.

12. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the Hong Kong Special Administrative Region (SAR). Any disputes arising from or relating to these Terms shall be subject to the exclusive jurisdiction of the courts of Hong Kong SAR.

13. Changes to These Terms

We may update or modify these Terms at any time. Any changes will be effective immediately upon posting on this page, with the updated date indicated above. Continued use of our website constitutes acceptance of the revised Terms.

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