In an APK teardown by Android Police, details of the Google Fi carrier plans have been uncovered. Discovered in an unofficial Nexus 6 firmware image uploaded to a hosting site, an app called Tycho.apk revealed some interesting information.
Although just a codename, Tycho will reportedly be the interface to the MVNO. The word “Tycho” emerges in two files: Tycho.apk and in com.google.android.apps.tycho. Another name, Nova, appears in the signing certificate, is thought to stand for the service’s physical infrastructure that Tycho will communicate with.
Tycho seems to be a multi-purpose management app that will allow customers to manage accounts, pay phone bills, and view data usage as well as account statements. You can close an account or put it on hold with the app, and also ask for a new phone number as well.
A final phrase appears throughout the code strings called Project Fi. Whether a take on Google Fiber, or the word WiFi, Google Fi sounds like a plan that Google will use to have phones automatically switch between WiFi and data networks, or between different data networks to whichever one has the strongest signal.
Similar to pay-as-you-go plans, Google will only charge customers for the data they use, and that data will be charged by the gigabyte, with a no-interest flat rate. Calling and texting US numbers should also be free; Google having paved the way with Google Voice and Hangouts calling. Customers will be able to have shared data plans and multiple lines with Google Fi.
Google Fi also seems to support data-only plans, a feature that many people have been requesting for such devices as tablets. Another feature that seems handy will be letting customers to easily switch between multiple phones, with calls and text messages automatically rerouting, possibly by using Tycho. If you use Google Voice, your accounts will be separate but you can port your number.
So far, Google has made deals with Sprint and T-Mobile, and it’s unknown whether more carriers will eventually participate or not.
Finally, as Google is primarily an advertising company, your call history data will be tracked. An example AndroidPolice gave was, “Basically, Google wants to know if you called a pet store so an ad for puppy chow can pop up in a couple of days.” However, in a rare move this tracking will be opt-out, and the customer proprietary network information (CPNI) won’t be shared by companies.