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leosama Saurik大神在hacker news的评论里提了猜测的根据。虽然算不上作恶的证据,不过也蛮危险了。
Here's what I'm seeing: every time I send it a message, I get a packet from Apple, and then immediately the app sends a packet of almost exactly the same size to 222.77.191.206 (which is listed in this application's APK as "ServerIp"). It then gets back two packets from the Chinese server, the first of which I'm presuming is the decoded result and the second packet being a response to send Apple (as immediately a packet is sent back to Apple with about the same size).
Additionally, if you read the reviews of this application, the author is making some very weird responses to people with login issues: he's asking for their Apple ID, as apparently that's enough for him to debug their issue. That shouldn't be possible if the application is just directly talking to Apple the entire time.