About the Project

This is an independent information site about the Happ client app. We do not develop Happ, we do not own its trademark, and we are not connected with the development team. The site exists separately from happ.info and docs.happ.info and cannot speak on behalf of the developers.

Happ is a client app built on the Xray-core engine. It is not a VPN service by itself: the app accepts the server or subscription address that the user provides and sends the device's traffic through it. We describe how this works on different platforms, and we cover the common questions and errors that users run into.

The site is a knowledge base about Happ. It includes installation and setup guides for Windows, macOS, Linux, Android, iOS, Android TV and Apple TV; breakdowns of error codes and ways to fix them by platform; a glossary of protocol and transport terms; comparisons of protocols and clients; practical use cases, from travel to connecting over an unstable network; and answers to frequently asked questions.

We do not write guides whose only purpose is access to restricted resources, and we do not give advice that contradicts the law of the user's country. We also do not describe clients that have no open, verifiable information, and we do not use the names of unofficial Happ builds in our material.

Every technical statement on the site is backed by a source: the official Happ documentation, a release description on GitHub, the Xray-core documentation, or our own check on a device, with the app version and operating system stated. Before publication, every guide goes through two people: the author and a technical reviewer, who repeats the steps on their own device.

The full verification rules, the makeup of the editorial team and the article review schedule are described on the editorial policy page. It also explains what to do if a reader finds an inaccuracy.

If you need the official website, the documentation, an app store page or the repository with releases, use the official sources rather than third-party copies. We have collected and verified the full list on the official Happ sources page. It explains how to tell the official app from a fake, without naming in the text any apps that do not exist.

We link to these sources in every article where it is appropriate, and we state the date when we last checked a fact against the documentation.

Happ does not sell access to servers and does not charge for traffic. It is a program that connects to a server specified by the user. You can set up your own server yourself, and for a ready-made solution, users more often choose a subscription from a third-party provider.

We describe one such option, the Atlas VPN service, on the plans page and on the provider page. The buttons on the plans page lead to the Atlas VPN website through our referral link. It is a separate service with its own payment and support terms, and it is not connected with Happ's development. We describe how the app works in the same way regardless of which server or subscription it connects to.

Happ is a client app built on the Xray-core engine. The product is not a VPN service and does not provide access to network resources. The user connects on their own to servers that they own or that are provided by third-party providers. The user is responsible for using the app in accordance with local law.

If you have questions about the content of our articles or you have found an inaccuracy, the editorial contacts page explains how and on which topics you can write to us.