Arven can be purchased solely on the ThemeForest. Be advised not to purchase Arven anywhere else, as warez/unlicensed versions will not have a purchase code that is needed for free theme updates and premium support and would likely be hacked copies containing malicious code.
To purchase Arven, you need to create an Envato account and log in to that account. You can see a detailed informations, pre-built demos, details of what’s included and features on the Arven page.
If you have any questions, you can read customer reviews or send a pre-sale question on the comments page.
To purchase Arven, simply click on the Add to Cart button at the top right of the page. You can go to your cart for payment transactions from the top right of the page. You can use a Credit Card, Paypal account or Skrill account to complete your purchase.
After purchasing Arven, you will receive an email from ThemeForest. The purchase details and download links will be in the email. Also your copy of the theme will be on the Downloads page, which can be accessed under your user profile. You can download the All Files or the Installable WordPress File Only from here.