> For the complete documentation index, see [llms.txt](https://docs.gp7.app/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gp7.app/en/master.md).

# GP7 App

GP7 App is a cross-platform service for storing, sending and receiving cryptocurrencies with a special focus on security. The service offers functionality with non-custodial status. To authorize any operation, the user submits a signature, while the service is only a provider.

1. [General Info about the Application](/en/general-info-about-the-application.md)
   * [Installing the Application](/en/general-info-about-the-application/installing-the-application.md)
   * [The Main Functionality of the Service](/en/general-info-about-the-application/the-main-functionality-of-the-service.md)
   * [User Authentication](/en/general-info-about-the-application/user-authentication.md)
2. [Operations with Accounts](/en/operations-with-accounts.md)
   * [Enabling and Disabling Cryptocurrencies](/en/operations-with-accounts/enabling-and-disabling-cryptocurrencies.md)
   * [Checking Your Balance and Viewing the Transaction History](/en/operations-with-accounts/checking-your-balance-and-viewing-the-transaction-history.md)
   * [Receiving Cryptocurrency to Your Account](/en/operations-with-accounts/receiving-cryptocurrency-to-your-account.md)
   * [Sending Cryptocurrency from Your Wallet](/en/operations-with-accounts/sending-cryptocurrency-from-your-wallet.md)
   * [Transfer Fee](/en/operations-with-accounts/transfer-fee.md)
3. [Cryptography for Interaction with Blockchain](/en/kriptografiya.md)
   * [Digital Signature Generation](/en/kriptografiya/digital-signature-generation.md)
   * [Restoring Access](/en/kriptografiya/restoring-access.md)
   * [Key Generation and Recovery Key Export](/en/kriptografiya/key-generation-and-recovery-key-export.md)
   * [Recovery Key Export](/en/kriptografiya/recovery-key-export.md)
   * [Viewing and Manually Uploading Keys in Key Manager](/en/kriptografiya/viewing-and-manually-uploading-keys-in-key-manager.md)
   * [Restoring Access and Importing the Recovery Key](/en/kriptografiya/restoring-access-and-importing-the-recovery-key.md)
4. [Cryptocurrencies](/en/cryptocurrencies.md)
   * [Blocks and Transactions](/en/cryptocurrencies/blocks-and-transactions.md)
   * [Features of Bitcoin and Bitcoin Cash](/en/cryptocurrencies/features-of-bitcoin-and-bitcoin-cash.md)
   * [Ethereum Features](/en/cryptocurrencies/ethereum-features.md)
   * [EOSIO Features](/en/cryptocurrencies/eosio-features.md)
   * [XRP Features](/en/cryptocurrencies/xrp-features.md)
   * [USDT Features](/en/cryptocurrencies/usdt-features.md)
   * [TRON Features](/en/cryptocurrencies/tron-features.md)
5. [Assets](/en/assets.md)