In short
Driving Routes is the dominant tool for practical-test route practice (UK + US). For theory test prep, Theory Test Pro and Driving Test Success are the leaders. For everyday navigation, Google Maps is the default. Most learners use a theory app + Driving Routes for practical-test route practice.
1. Theory Test Pro
Theory test appA UK theory-test revision app focused on multiple-choice and hazard-perception practice.
2. Driving Test Success
Theory test appA long-running UK driving test app covering theory, hazard perception, and a small set of practical-test tips.
3. PASS Driving Test
Theory test appTheory test prep app with hazard-perception videos and a mock-test mode.
4. DriverZ
Driving schoolA US-focused driver-education and behind-the-wheel-training app with state-specific permit prep.
5. Sat-nav apps (TomTom, Garmin)
Sat-navGeneral-purpose navigation apps for getting from A to B.
6. Google Maps
Sat-navGoogle's general-purpose mapping and navigation product.