Terms of Service
Last updated: April 8, 2026
1. Acceptance of Terms
By accessing and using CalcStack ("the Site"), you agree to be bound by these Terms of Service. If you do not agree with any part of these terms, please do not use the Site.
2. Description of Service
CalcStack provides free and premium online calculators for finance, health, math, date/time, and other categories. We also offer an AI-powered calculator builder for creating custom calculators.
3. User Accounts
- You are responsible for maintaining the confidentiality of your account credentials.
- You must provide accurate and complete information when creating an account.
- You are responsible for all activities that occur under your account.
- We reserve the right to suspend or terminate accounts that violate these terms.
4. Acceptable Use
You agree not to:
- Use the Site for any unlawful purpose
- Attempt to gain unauthorized access to our systems
- Interfere with or disrupt the Site or its servers
- Scrape, crawl, or use automated tools to access the Site beyond normal usage
- Upload malicious code or content
5. Calculator Results Disclaimer
Calculator results are provided for informational and educational purposes only. They should not be considered as professional financial, medical, legal, or any other type of advice. Always consult a qualified professional before making important decisions based on calculator results.
6. Intellectual Property
All content on the Site, including text, graphics, logos, and software, is the property of CalcStack or its licensors and is protected by intellectual property laws. You may not reproduce, distribute, or create derivative works without our prior written consent.
7. User-Generated Content
When you create custom calculators or counters using our platform, you retain ownership of your content. However, you grant us a non-exclusive, worldwide license to host and display your public content on the Site.
8. Paid Services
Some features require a paid subscription. Payments are processed through Stripe. Refund policies and billing terms are communicated at the time of purchase. We reserve the right to change pricing with reasonable notice.
9. Advertisements
The Site may display advertisements provided by Google AdSense and other advertising partners. These ads may use cookies and tracking technologies as described in our Privacy Policy.
10. Limitation of Liability
CalcStack is provided "as is" without warranties of any kind. We shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of the Site or reliance on calculator results.
11. Changes to Terms
We reserve the right to modify these Terms at any time. Changes will be posted on this page with an updated date. Continued use of the Site constitutes acceptance of the modified terms.
12. Contact
For questions about these Terms, please visit our Contact Page.