> For the complete documentation index, see [llms.txt](https://high-tower.gitbook.io/vault_wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://high-tower.gitbook.io/vault_wiki/1-introduction-to-vault-wallet/about/overview.md).

# Overview

VAULT is a self-custodial crypto wallet designed to simplify the use of stablecoins across multiple blockchains. With Vault, users can send and receive assets **without holding native blockchain tokens for gas**, making cross-border transfers and crypto-fiat operations fast and accessible.

VAULT is available as:

* iOS app
* Android app
* Web app
* Browser extension
* Telegram Mini App

At its core, VAULT enables users to **securely generate and manage their own private keys**, ensuring full ownership of funds and transactions.

All transactions are powered by our **gasless engine**, which covers network fees on behalf of users. Instead of requiring native tokens, the system delegates blockchain energy, allowing seamless and low-friction transfers.

Users can perform up to **three free transactions per day**, with additional transactions processed at minimal cost through the delegated energy model