FAQ
Common questions about how SixLadder works and what to expect.
What does this app do?
This app provides IPv6 connectivity on IPv4-only networks.
It allows apps and systems that require IPv6 to work normally in environments where only IPv4 is available.
By default, IPv6 traffic goes through the tunnel, while IPv4 traffic continues to use the regular system network. You can change this behavior in settings.
How does the connection work?
The app creates a local VPN tunnel based on WireGuard.
What does Google DNS64 do?
When Google DNS64 is enabled, an IPv4-only domain name is resolved by Google’s DNS64 service into a synthetic IPv6 address.
When an application connects to this synthetic IPv6 address, the traffic is routed through the VPN over IPv6.
The VPN server provides built-in NAT64 functionality, translating IPv6 traffic destined for IPv4-only services into IPv4, allowing IPv6-only clients to access IPv4 websites and services.
What is IPv6-Only Mode?
IPv6-Only Mode blocks IPv4 system-wide and provides an IPv6-only network. Some users may require this type of network for specific tasks, such as testing IPv6-only environments.
If access to IPv4-only services is required, IPv6 addresses from the 64:ff9b::/96 prefix can be used to reach them, which can be provided by DNS64.
How does billing work?
After registration, users receive 1 GiB of free data. Android purchases and refunds are handled through Google Play. SixLadder uses your total usage and remaining quota to apply your data balance.
Short-interval traffic usage may be processed to update your total usage, but it is not kept as a long-term billing record. When all data is used up, the service continues to operate at a reduced speed instead of stopping completely.
How do I delete my account?
You can delete your account directly inside the app from the top-right menu.
If you prefer to delete it outside the app, use our account deletion page and complete the web-based deletion flow. Deletion is automatic after confirmation, and the username cannot be used again.