Cookies Policy
Last updated: 3 October 2026
This Cookies Policy explains which cookies and similar browser storage Logist Calculator (logistcalculator.com), operated by FOP Yurii Peresta, uses, why, and for how long. It complements our Privacy Policy.
Questions: logist.calculator.ua@gmail.com
1. In short
We use only what the website needs to work: to keep you signed in, to remember your language, to keep the calculation you are working on, and — when you pay — Paddle’s checkout.
We do not use tracking cookies or advertising cookies, and we do not track you across other websites. Our own usage statistics and our page-view analytics store nothing on your device.
2. Signing in
| Name | Type | Purpose | Kept until |
|---|---|---|---|
| Sign-in session | Local Storage | Keeps you signed in to your account. | You sign out, or the session expires |
| lc_session_leader | Local Storage | Lets one open tab refresh your sign-in for all your tabs. | You clear your browser data |
| admin_session | Cookie | Signs in to the administrative interface. Never set for ordinary users. | About 24 hours |
3. Your language
| Name | Type | Purpose | Kept until |
|---|---|---|---|
| lc_lang | Cookie and Local Storage | Remembers the language you chose for the website. | About 1 year |
4. Your work in the calculator
| Name | Type | Purpose | Kept until |
|---|---|---|---|
| Calculator draft | Local Storage | Keeps a calculation you have not finished, so it survives a reload or signing in again. | The calculation is completed or reset |
| Notice flags | Local Storage | Remembers that you have already seen a notice, so it is not shown again. | You clear your browser data |
| lc_reg_notice | Session Storage | Prevents a duplicate notice when a new account is created with Google. | The browser tab is closed |
5. Payments
International payments are processed by Paddle.com, our Merchant of Record. Paddle’s checkout is loaded only when you open it, and Paddle may then set its own cookies or similar storage to process the payment securely and to prevent fraud. These are controlled by Paddle and described in Paddle’s privacy notice. We do not use Paddle’s retention or marketing tools.
6. Statistics
We count page views with Vercel Web Analytics, which uses no cookies and stores nothing on your device. Our own statistics about how the calculator is used are recorded on our server; the identifier that groups the actions of one visit exists only while the page is open and is never stored on your device.
7. Managing cookies
You can delete cookies and site data at any time in your browser settings, and you can block cookies for this website. If you do, the website will forget your language, you will be signed out, and an unfinished calculation will be lost; the rest of the website keeps working.
8. Changes
If we change the cookies or storage we use, we will update this policy and its date.