Knowledge base · Apps and keys
Apps for connecting to a VPN
Where to download Happ and INCY, how to tell the real app from a fake and how the subscription gets into the app.
- Apps and keysHapp disappeared from the App Store: how to find and install the real Happ
The real Happ is identified by its developer: Flyfrog LLC in the App Store, HappDev in Google Play.
- Apps and keysHow to change your Apple ID region: a 2026 step-by-step guide
The Apple ID region is changed in iPhone settings. Before that, the balance must be zero and subscriptions cancelled and expired.
- Apps and keysVPN keys: what they are, where to get one and why free keys stop working
A key is a string with the server address and connection settings. How it differs from a subscription, where to get one and why free keys stop working.
- Apps and keysWhere to get a key or subscription for Happ
Happ is a free client with no servers of its own. How a key differs from a subscription, who issues them, whether it costs money, and what to check before paying.
- Apps and keysHow to add a subscription to Happ
A subscription or key is added to Happ with the service's button, from the clipboard or by QR code. How to refresh a subscription and what to do when Happ shows an error.
- Apps and keysHapp is not connecting: what to check
No servers in Happ, Timeout, “Connected” but no internet. What each symptom means in Happ and what to check before writing to support.
- Apps and keysWhere to get a key or subscription for INCY
INCY does not sell VPN access: a key or subscription comes from a service. Which formats INCY reads, whether a Happ subscription works in it, and how to choose a service.
- Apps and keysHow to add a subscription to INCY
A subscription is added to INCY through a service link, from the clipboard, by QR code or as a .conf file. How to send it to a TV and what to do if the import fails.
- Apps and keysINCY is not connecting: what to check
An empty server list, a timeout, no internet after connecting, one site that won't open. A walk through INCY's screens: subscription, routing, kill switch, logs.