TriNav asks Google, Apple and Yandex for the same trip, lines up their arrival times and guides you turn by turn on the one you pick. Change your mind halfway and switch without stopping.

Each map reads traffic its own way, so the same trip rarely gets the same estimate. On a longer drive the gap can run to tens of minutes. TriNav shows all three before you set off.

All three estimates stay live for the whole drive. When another map pulls ahead, TriNav tells you by how much, and one tap moves your guidance to it. The trip carries on.

Search, compare and drive from the car's display. Turns show on the CarPlay dashboard and, in cars that support it, on the screen behind the wheel. The other two maps stay one tap away.

Spoken directions turn your music down instead of stopping it. Lock the phone and the next turn and your arrival time stay on the Lock Screen and in the Dynamic Island.

When you arrive, the trip summary sets each map's estimate against the time you actually drove. Over a few trips you learn which one to trust on your roads.

Comparing routes is free for as long as you like. Premium is for driving with TriNav every day.
No. TriNav gets the routes itself and guides you inside the app. It never sends you off to another app.
Each one has its own traffic data and its own idea of the best road. That is exactly why it pays to see all three: the fastest map changes from trip to trip.
No. There is no sign-up. Your location is used to plan and follow your route, and never for advertising.
In your iPhone's Settings, under your name and then Subscriptions. Premium stays on until the end of the period you paid for.
No. TriNav is an independent app. Google Maps, Apple Maps and Yandex Maps are trademarks of their owners.