This Privacy Policy describes how ti84calculator.io ("we", "us", or "our") collects, uses, and shares information when you use our website and the online TI-84 Plus CE calculator emulator (the "Service"). By using the Service, you agree to the practices described below.
1. Information We Collect
Information You Provide
We do not require you to create an account to use the calculator. We do not knowingly collect any personally identifiable information that you provide directly to us.
Information Collected Automatically
When you visit our Service, certain information is automatically collected, including:
- Browser type and version
- Operating system and device type
- Referring website
- Pages visited and time spent on each page
- Approximate geographic location (country/region level)
- IP address (in anonymized form where applicable)
2. How We Use Information
We use the information we collect to:
- Operate, maintain, and improve the Service
- Understand how visitors use the Service through aggregated analytics
- Display advertisements that help support the free Service
- Detect, prevent, and address technical issues, abuse, or fraud
- Comply with applicable legal obligations
3. Cookies and Similar Technologies
We and our third-party partners use cookies, web beacons, and similar tracking technologies to operate and analyze the Service, and to deliver personalized advertising. You can control cookies through your browser settings; however, disabling cookies may affect the functionality of the Service.
4. Third-Party Services
We use third-party services to help operate and monetize the Service. These providers may collect information about your use of our website in accordance with their own privacy policies:
- Google AdSense – serves ads on our website. Google may use cookies and the advertising identifier to serve ads based on your prior visits to our Service or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.
- Plausible Analytics – privacy-friendly website analytics that does not use cookies and does not collect personal data.
- Texas Instruments / TestNav – the embedded calculator emulator is loaded from third-party sources. Their use is subject to the respective providers' terms.
5. Advertising
Third-party advertising vendors, including Google, may use cookies to serve ads based on a user's prior visits to our website or other websites on the internet. You may opt out of personalized advertising by visiting www.aboutads.info/choices.
6. Data Sharing
We do not sell or rent your personal information. We may share information with:
- Service providers that help us operate the Service (e.g., hosting, analytics, advertising)
- Authorities, when required by law or to protect our rights and the safety of users
7. Data Retention
We retain automatically collected information only for as long as necessary for the purposes described in this Privacy Policy, or as required by law.
8. Children's Privacy
Our Service is suitable for general audiences, including students. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us and we will take steps to delete it.
9. Your Rights
Depending on your location, you may have rights regarding your personal information, including the right to access, correct, delete, or restrict its use. To exercise these rights, please contact us using the details below.
10. International Users
The Service is operated from servers that may be located outside your country. By using the Service, you consent to the transfer of information to countries that may have different data protection laws than your jurisdiction.
11. Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date. Your continued use of the Service after changes are posted constitutes your acceptance of the revised policy.
12. Contact Us
If you have any questions about this Privacy Policy, please contact us via our GitHub repository.