Privacy Policy
Your privacy is a core priority at ExcelClash. We are transparent about the minimal data we collect and how it is used to deliver a reliable spreadsheet learning experience. This policy explains our data practices, cookie usage, and your personal data rights.
1. Information We Collect
We only ask for and collect the minimum information required to operate your account and track your learning progress: (1) Basic Account Information: your email address, chosen username or display name, and hashed password (or your verified Google account profile if you choose Google Sign-In). We do not collect phone numbers, physical addresses, or financial payment details. (2) Learning & Gameplay Progress: completed exercises, test scores, formula submission history, and battle arena ratings. (3) Standard Technical Logs: basic web request data (IP address, browser type) used strictly for authentication, rate-limiting, and AI quota security.
2. How We Use Your Information
Your information is used strictly to run your account on ExcelClash: signing you in, saving and syncing your exercise and test progress across sessions, showing your score on competitive leaderboards if you participate, and managing your daily AI formula hints. We never sell, rent, or trade your personal information.
3. Data Sharing & Third-Party Services
ExcelClash does not sell or share your personal data with data brokers. We only connect with services essential to deliver the application: (1) Secure cloud database hosting to store your account and exercise records. (2) AI model providers (Groq) receiving only the formula text and problem context required to generate helpful spreadsheet explanations, never your personal account credentials. (3) Google OAuth if you choose to sign in using your Google account.
4. Cookies & Browser Storage
We use essential cookies and browser local storage to keep you logged in to your account, save your in-progress spreadsheet formulas, and store your interface preferences. Third-party advertising partners (such as Google AdSense) may also use cookies to serve relevant ads on our website based on standard web browsing.
5. Data Security Measures
We protect your account data with modern security standards, including HTTPS encryption in transit, salted bcrypt password hashing, and secure server-side session management.
6. Account Deletion & Your Rights
You can update your profile or delete your account at any time. If you wish to delete your account and all associated test scores and progress data, you can submit a request to support@excelclash.com and your data will be permanently removed.
Advertising Disclosures
We partner with Google AdSense and third-party advertising networks to serve relevant advertisements. These third-party vendors use cookies to serve ads based on prior visits to our website or other websites. You may opt out of personalized advertising by visiting Google Ads Settings.