# FAQs ## How does billing work for 0xArc? Billing for 0xArc is subscription-based, with both monthly ($800/month) and annual ($8,000/year) payment options available. Pro users can track up to 3 chains, with the flexibility to add more chains at $400/month per chain. The billing cycle is automatically processed according to your selected plan. ## Can I change my plan or cancel at any time? Yes, you can upgrade, downgrade, or cancel your plan anytime. Changes to the plan will take effect at the end of your current billing period, while new chains will be added immediately after purchase. ## Are there any limitations on data storage and user seats? No, 0xArc offers unlimited data storage and user seats across all subscription plans. You can store as much data as needed and invite as many team members as required to collaborate on your analytics projects without any additional charges. ## What is Multi-Chain Analytics? Multi-Chain Analytics allows you to track wallet activity across multiple EVM blockchains in a single platform. This feature gives you a unified view of wallet interactions, helping you understand how users engage with your dApp across various chains like Ethereum, Polygon, Arbitrum, Base, Optimism, Binance Smart Chain, and Celo. ## How do I start using Multi-Chain Analytics? To use Multi-Chain Analytics, you’ll need to subscribe to the Pro Plan, which offers tracking for up to 3 chains by default. Additional chains can be added for $250/month per chain. You can configure your tracking directly in the app by selecting the chains you want to monitor from our list of supported blockchains. ## Can I see what blockchains are most popular on my app before purchasing more chains?
 Yes, we provide an estimate of session activity on the chains we can detect. This helps you choose the blockchains that make the most sense for your project before committing to additional purchases. ## **Can I add or remove blockchains during my subscription?** Yes, Pro users can add more chains to their plan for $400/month per chain, directly within the app. You can manage your chains and add new ones as needed. Please note that there is a 1-week cooldown between chain changes. ## Do you offer discounts for non-profit organizations or educational institutions? Yes, we offer special discounts for non-profit organizations and educational institutions. Please reach out to our support team to inquire about eligibility and to discuss available discount options for your organization. ## What if I have unresolved issues or further queries? If you encounter any issues that aren't resolved by our standard support channels, or if you have additional questions, please don't hesitate to reach out directly. We're here to help you get the most out of 0xArc. #### For immediate assistance: * Access our in-platform support chat for real-time help during business hours. * Send us a detailed email at , and our support team will respond as promptly as possible. #### If you require additional support: * Visit the 'Contact Us' section and submit your concerns. Our customer support team will get back to you within one business day. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://0xarc.gitbook.io/0xarc-documentation/faqs.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.