How CalcHub AU collects, uses, and protects your information. Last updated: June 2025.
CalcHub AU ("we", "us", "our") operates the website at calchub.au (the "Site"). This Privacy Policy applies to all visitors and users of the Site.
Our calculators process all inputs locally in your browser. The numbers you enter into any calculator are not transmitted to or stored on our servers. We have no access to your calculator inputs or results.
When you visit the Site, we automatically collect certain technical information through analytics tools and server logs:
| Data Type | What Is Collected | Purpose |
|---|---|---|
| Device & browser | Browser type and version, operating system, device type | Site optimisation and compatibility |
| Usage data | Pages visited, calculators used, time on page, referral source | Understanding user behaviour to improve the Site |
| IP address | Approximate geographic region (country/city level only) | Analytics and fraud prevention |
| Session data | Session duration, navigation path | Analytics and UX improvement |
This data is collected via Google Analytics and does not personally identify you. IP addresses are anonymised before storage.
We only collect personal information that you actively provide to us, such as:
We use collected information only for the purposes for which it was collected, or directly related purposes:
We do not use your information for:
We do not sell your personal information. We may disclose it only in the following limited circumstances:
| Provider | Service | Data Shared | Their Privacy Policy |
|---|---|---|---|
| Google Analytics | Website analytics | Anonymised usage data, IP (anonymised) | Google Privacy Policy |
| Google AdSense | Advertising | Cookies, browsing behaviour (managed by Google) | Google Privacy Policy |
| Netlify | Website hosting | Server access logs, IP address | Netlify Privacy Policy |
We may disclose your information where required by law, court order, or lawful direction from a government authority — including the Australian Taxation Office, OAIC, or law enforcement agencies.
If CalcHub AU is sold, merged, or transfers its assets, user data may form part of that transaction. We will notify users of any such change and ensure the new operator is bound by equivalent privacy obligations.
We may disclose information to third parties with your explicit consent where you request it.
Cookies are small text files placed on your device by websites you visit. They help websites function correctly and collect usage information.
| Cookie Type | Provider | Purpose | Duration |
|---|---|---|---|
| Analytics | Google Analytics | Measure site traffic and usage behaviour | Up to 2 years |
| Advertising | Google AdSense | Serve personalised ads based on interests | Up to 2 years |
| Functional | CalcHub AU | Recently viewed calculators (localStorage, not a cookie) | Persistent until cleared |
You can control cookies through your browser settings. To opt out of specific tracking:
Note: disabling cookies may affect some Site functionality.
Some browsers send a "Do Not Track" signal. CalcHub AU does not currently alter its data collection practices in response to Do Not Track signals, as no industry standard has been established in Australia for this purpose.
We take reasonable technical and organisational steps to protect information from misuse, interference, loss, unauthorised access, modification, and disclosure. These include:
However, no internet transmission is completely secure. We cannot guarantee the absolute security of information transmitted to or from the Site. You transmit information at your own risk.
In the event of a data breach that is likely to cause serious harm, we will notify affected individuals and the Office of the Australian Information Commissioner (OAIC) in accordance with the Notifiable Data Breaches (NDB) scheme under the Privacy Act.
We retain personal information only for as long as necessary to fulfil the purpose for which it was collected, or as required by law:
When information is no longer required, we take reasonable steps to destroy or de-identify it securely.
Some of our service providers are located outside Australia, including in the United States (Google). When we disclose personal information to overseas recipients, we take reasonable steps to ensure those recipients handle it in accordance with the Australian Privacy Principles.
By using the Site, you consent to your information being transferred and processed overseas. Google's data practices are governed by its own Privacy Policy.
You have the right to request access to personal information we hold about you. We will respond within 30 days of receiving a valid request. We may charge a reasonable fee for providing access.
If you believe information we hold about you is inaccurate, out of date, incomplete, irrelevant, or misleading, you may request correction. We will take reasonable steps to correct it within 30 days.
In certain circumstances you may request deletion of your personal information. We will comply unless retention is required by law or legitimate business purposes.
Submit requests to: hello@calchub.au. Include your name, contact details, and a description of the information in question. We may ask you to verify your identity before processing the request.
CalcHub AU is a general-purpose tool not directed at children under 13 years of age. We do not knowingly collect personal information from children. If you believe a child has provided personal information to us, please contact us immediately and we will delete it.
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. When we make material changes, we will update the "Last Updated" date at the top of this page. We encourage you to review this policy periodically.
Continued use of the Site after changes are posted constitutes your acceptance of the updated policy.
If you believe we have breached the Australian Privacy Principles or this Privacy Policy, please contact us first at hello@calchub.au. We take privacy complaints seriously and will respond within 30 days.
If you are not satisfied with our response, you may lodge a complaint with:
For any privacy-related questions, requests, or concerns: