Privacy Policy

Effective date: August 29, 2026 | Applies to tstools.org and all subpages

TS Tools ("the Site") takes your privacy seriously. This policy explains what information is — and is not — collected when you visit and use the Site.

1. What we do NOT collect (core promise)

Your calculator inputs. All calculators are pure front-end applications. The numbers you enter — loan amounts, salary, interest rates — are computed locally in your browser's memory and are never transmitted to or stored on any server.
Identity data. The Site has no accounts and requires no sign-up. We never ask for your name, phone number or email address to use a tool.
Tracking cookies. We set no cookies for user profiling or cross-site tracking, and we embed no advertising-network scripts.
Nothing to sell. Because we collect no personal data, there is nothing to sell or share with data brokers.

✅ In one sentence: everything you type stays on your own device. Close the tab and it's gone.

2. Guestbook

If you use the guestbook, your submitted name and message are sent to our server and published immediately after submission. They are retained while displayed on the guestbook. Please do not submit phone numbers, ID numbers, email addresses, or other sensitive information.

3. Anonymous visit statistics

Our homepage displays a "today's visitors" counter. This counter is implemented in a privacy-friendly way and is used only to understand overall traffic trends:

On first page load, the browser sends one anonymous marker (used only for same-day deduplication) that contains no personally identifiable information.
The stats service hashes source information and does not store recognizable IP addresses, nor does it associate visits with your calculator inputs.
Only daily aggregate visitor counts are retained; individual visitors cannot be traced.

In addition to the anonymous statistics above, our hosting provider (Cloudflare) records standard server logs at the network level (which may include IP address, access time, requested URL, browser user-agent), used to keep the Site secure and operational. We never correlate this technical data with your calculator inputs — the latter never reaches a server in the first place.

4. Local storage

Some tools may use browser localStorage to remember your local preferences (e.g., language, units). This data lives only on your device and can be erased at any time by clearing your browser data.

5. Third-party links

Our guides may link to official institutions or other websites. Once you leave the Site, that destination's own privacy policy applies; we are not responsible for their data practices.

6. Changes to this policy

If we ever introduce features that change this picture (for example, enabling a privacy-friendly, cookieless analytics service or embedded third-party content), we will update this page and revise the effective date, with notable changes announced on the homepage.

7. Your rights

Because the Site collects no personal data, there is generally nothing to access, correct or delete. Still, if you have any question or complaint about how the Site handles data, reach us via the Contact page — we respond within 7 business days.

8. Children

The Site is intended for a general audience and does not knowingly collect any information from children.