Prostor - a Happ alternative after the config leak
In April 2026 it was publicly reported that user configurations leaked from Happ through an unsecured API - which put trust in an unblocking client on a par with speed and stability. That is reasonable: a client configuration is effectively the key to your traffic.
Prostor is a client on the same Xray core, but we back our privacy claims with specifics rather than text alone: keys and subscriptions are stored locally on your device, and the client has passed an independent security audit.
Happ and Prostor compared
| Happ | Prostor | |
|---|---|---|
| Distribution model | A client for keys and subscriptions you bring yourself (BYOK) | The same, plus a subscription inside the app - no separate service needed to get a key |
| The April 2026 incident | User configurations were publicly reported to have leaked through an unsecured API | Keys and subscriptions are stored locally on the device and never sent to our servers |
| Key storage | Depends on the client and backend implementation | Locally in the app only, see the Privacy Policy |
| Security audit | No public information about an independent audit | An independent security audit has been carried out |
| Split tunnelling | Available, configured by hand through rules | Available and on by default: local services direct, everything else through the proxy |
| Platforms | Windows, macOS, Android, iOS | Windows, macOS, Android. iOS is in development |
Why it matters
A configuration is a key
A leaked configuration means access to your server may have reached third parties. Keeping keys on the device only reduces that risk.
An audit, not a declaration
"We collect no logs" is easy to write. We passed an independent security audit so that it is more than words.
Migrate without losing anything
Your existing key or subscription is added to Prostor in one click - no need to change your server provider.