Privacy Policy
Effective 12 August 2026
The short version
- The Chrome extension needs no account, sets no cookies, and does not include analytics, advertising, or tracking code.
- Item floats, sell prices you type, and Steam account details stay on your device. The extension only requests public price data from our servers.
- Website sign-in is optional. If you sign in with Steam, we store your public Steam profile identifiers and a session so you stay signed in.
- We do not sell personal information or share it for advertising or profiling.
1. Scope
This policy describes how CSlytics (“we”, “us”) handles information when you use the Cslytics Float Curves Chrome extension, the website at cslytics.com, and related services that support them.
The extension and the website are separate. The extension does not require a CSlytics account. If you only use the extension, the website account sections below do not apply to you.
CSlytics is not affiliated with, endorsed by, or sponsored by Valve Corporation, Steam, or CSFloat.
2. Information we collect
Chrome extension
The extension reads item details already shown on Steam Community market and inventory pages (such as item name and float) so it can display a price estimate. That processing happens on your device.
To show an estimate, the extension requests public price-curve and exchange-rate data from our servers. Those requests identify the item, not you. We do not receive your float value, the price you type into Steam, your Steam ID, inventory contents, wallet balance, or login credentials.
The extension may cache downloaded public data on your device. That cache is not uploaded and is removed when you uninstall the extension or clear its storage.
Our servers may keep ordinary technical access logs for those requests (for example IP address, timestamp, requested URL, and User-Agent) for security, abuse prevention, and troubleshooting.
Website without an account
You can use the Tradeup Calculator without signing in. In that case we may receive standard technical information about page requests through our hosting and analytics providers, as described below.
Website sign-in
Optional sign-in uses Steam OpenID. We never receive your Steam password. When you sign in, we store:
- your public Steam ID;
- your public Steam display name and avatar URLs;
- account metadata such as subscription tier and timestamps;
- a session record (session token, expiry, and the IP address used when the session was created);
- usage counters needed to enforce fair-use limits.
We do not request your Steam inventory, trade history, wallet balance, friends list, or email address from Steam.
Feedback
If you submit feedback through our form, we receive whatever you choose to include. Please do not send sensitive personal information in feedback.
3. How we use information
We use information only to:
- provide and operate the extension and website;
- authenticate signed-in users and keep sessions working;
- prevent abuse and enforce fair-use limits;
- understand aggregate website traffic;
- respond to feedback and support requests;
- maintain security and troubleshoot problems.
We do not use personal information for advertising, credit decisions, or any purpose unrelated to operating CSlytics.
6. Retention
- Extension cache stays on your device and is removed on uninstall or when you clear extension storage.
- Server access logs are kept only as long as needed for security, abuse prevention, and troubleshooting.
- Website sessions expire by default after 7 days and are deleted when you sign out.
- Website account records are kept while the account exists, and deleted on request as described below.
7. Your rights and choices
If you only use the extension, we do not hold an account about you. You can stop network requests by uninstalling the extension and clear its local cache from Chrome’s extension settings.
If you have a website account, you may ask us to confirm what we hold, provide a copy, correct it, or delete your account and associated data. Depending on where you live, you may also have rights to restrict or object to processing, to data portability, and to complain to a data protection authority. Email xpar65@gmail.com and we will respond within 30 days.
8. Security
Traffic to CSlytics uses HTTPS. We aim to collect only what we need to operate the product. No method of transmission or storage is perfectly secure.
9. Children
CSlytics is not directed to children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided us with personal information, contact us and we will delete it.
10. Changes
If we change how data is handled, we will update this page and the effective date above. Continued use after an update means you accept the revised policy.
11. Contact
Questions about this policy: xpar65@gmail.com.