Buying the TomTom app for Android and installing it on your smartphone is a bit like getting a TomTom portable navigation device (PND) without having to carry the extra hardware around. The interface is familiar from TomTom's line of GPS navigators, particularly the settings menus, but here and there it's obvious that things have been nudged about and optimized for a smartphone's screen.
Small touches here and there, such as a pop-out menu with shortcuts to volume, 2D/3D map toggle, and day/night map mode toggle, make the app easy to understand and interact with while driving. I do miss being able to input destinations and addresses by voice, but it may be possible that certain Android input methods that support voice may work with the app. My phone's default keyboard's and Swype's voice input functions did not work.
After installing the TomTom app, you'll have to first download the map data that is used for navigation. TomTom stores all of the licensed map data locally on your phone's SD card or internal storage, so that it can continue to operate if you go off the grid and lose your data connection. This is also advantageous to users on a limited data plan. The maps require a Wi-Fi connection to download and I found maps of the U.S. and Canada occupied about 2.26GB of storage space.
TomTom's IQ Routes pathfinding algorithms, which we've praised many times before, are still quite good at picking paths from points alpha to bravo. Routing modes for Fastest, Shortest, and Eco routes are available for motorists and Walking and Bicycle routes are there for everyone else. I also like the option to avoid highways or stick to roads with speed limits below a certain speed, which is great for those just learning to drive or uncomfortable at speed, but also good for maximizing range on vehicles like EVs and certain hybrids that quickly lose efficiency and range above, say, 50 mph.
Spoken turn-by-turn directions are available in a wide range of languages. However, spoken street names aren't available in all of these languages, only American English, British English, Canadian French, and Mexican Spanish.
TomTom's HD Traffic service is available as an in-app purchase. We've seen this system in action on TomTom's Live series of GPS devices and praised its ability to deliver traffic data bordering on prescience on busy highways and reasonably accurate traffic data even on major surface roads.
The final piece of the puzzle is destination entry, which is how you tell the TomTom app where you're going. There is integration with contacts stored on your phone, so you won't have to take time to re-enter or import new favorites. You'll also be able to search the Internet for destinations via the Local Search function if you have a network connection. (Curiously, the app kept telling me that there was no network connection available during my testing, despite the fact that I had a functioning Internet connection. So, I was unable to test this portion.) Additionally, there's a Point of Interest (POI) database that's downloaded with the map data and stored locally, containing the addresses and phone numbers of thousands of businesses.
For starters, TomTom's maps aren't infallible. I encountered at least one map inaccuracy per trip routed. These inaccuracies were usually minor. For example, the speed limit on the segment of I-280 within San Francisco city limits was given as 35 mph when it was actually 65 mph, triggering an excessive speed warning every time I went that way. On a few occasions, the app instructed me to turn at intersections with longstanding turn restrictions.