NoError Calc ("the site") keeps the personal data it handles to a minimum. This policy applies from 2026-10-30.
Every calculation runs inside your browser. Amounts, dates and salaries you enter are not automatically sent to or stored on our server. Values you choose to type into a feedback message are handled as described in section 3.
A few items stay only in your own browser's storage; we cannot see them and you can clear them by deleting site data:
Calculators that show exchange rates load a rate table from open.er-api.com, cdn.jsdelivr.net. Your inputs are not sent, but like any web request your IP address and browser information reach that service.
| What | Your message, page address, type, page language, time, country (estimated from the connection), browser information (User-Agent) and a one-way hash of your IP address (the IP itself is not stored) |
|---|---|
| Why | To check and fix errors, review suggestions, and block floods (10 messages per hour) |
| How long | Deleted automatically after at most one year (rate-limit records after one hour) |
| Processors and transfers abroad | ① Cloudflare, Inc. (USA) — hosting and storage of messages, transferred over HTTPS when you submit and kept for the period above. ② Telegram FZ-LLC (UAE, servers in several countries) — owner notification; only time, type, language, country, page and your message are sent, not the IP hash or browser information. If you do not want your data transferred abroad, simply do not use the form; the calculators work the same. |
| Deletion | When the period ends, stored records and the owner's archive are deleted automatically and irrecoverably; notification messages are deleted once reviewed. |
| Safeguards | HTTPS encryption in transit, no storage of raw IP addresses, and storage accessible only to the owner's account. |
Please do not include your name, contact details or ID numbers. We do not reply to general feedback.
The site runs on Cloudflare Pages, which may process connection data such as IP addresses and request times for security and operation. We use no visitor analytics tool.
The site may show ads from third-party vendors, including Google.
You can block cookies in your browser; the calculators keep working.
We do not knowingly collect personal data from children under 14.
You may ask to access, correct, delete or stop processing a message you sent. Send a request through the feedback form with the date, page, part of the text and an email address for the reply; unlike general feedback, we answer such requests within 10 days and then delete the email address.
Operator: the NoError Calc team. Privacy questions and deletion requests are handled through the feedback form.
Changes are announced on this page with a new effective date. Effective: 2026-10-30