Adam Stragner

What kind of URL you want to use to open VK app?

@pechn at this time we are doesn't support this functionality

do you set up delegates? `VKSdk *sdkInstance = [VKSdk initializeWithAppId:YOUR_APP_ID];` `[sdkInstance registerDelegate:delegate];` `[sdkInstance setUiDelegate:uiDelegate];`

Do you set UI delegate?

Please show you full code where you initialize SDK and call authorise method

Are you sure that `int vklogin(lua_state *L)` called after your method on first screenshoot?