# Bridging to Unigox appchain Unigox uses own appchain (currently XAI blockchain) for multiple reasons. 1. Users can transact with each other [without requiring a separate gas token](/how-it-works/gasless-non-custodial-wallet.md) like ETH, SOL or XAI. 2. Users can transact with each other on super cheap and blazing fast Unigox appchain 3. Escrow contract is EVM-based Gnosis Safe battle-tested contract 4. Adding support for more blockchains does not require us to implement new escrow contracts for every new blockchain 5. Cost to release or cancel escrow by user or Unigox system is extremely cheap fee wise due to usage of own app-chain 6. Freedom and ease of use to support bridging from any blockchain 7. Not affected by governance or downtimes of any specific blockchain if we were to choose 1 specific blockchain as the main chain for contracts 8. In the future, develop a whole ecosystem of decentralized apps on Unigox appchain ## How to Bridge ### Buying cryptocurrency If you buy cryptocurrency on Unigox, your cryptocurrency is sent to your Unigox appchain address upon escrow release. You can continue using Unigox wallet within appchain and send money to other users instantly and without gas token requirement. Alternatively, you can bridge out cryptocurrency to any other of the [supported chains](/how-it-works/supported-assets-and-blockchains.md#blockchains) in EVM network and Solana. ### Selling cryptocurrency When you sell cryptocurrency, you deposit cryptocurrency directly to Unigox's proxy contract on the same blockchain where your funds are. Unigox automatically bridges funds to Unigox appchain. There is nothing else required from your side. ### Using Unigox You are free to bridge out cryptocurrency to any of our [supported chains](/how-it-works/supported-assets-and-blockchains.md#blockchains). You can send and receive cryptocurrency on Unigox appchain at near-zero cost and almost instantly without paying any gas fees. --- # 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://guide.unigox.com/how-it-works/bridging-to-unigox-appchain.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.