Car apps can help you rent a car, find cheap gas prices, plan the most efficient route, make it safer to use your phone in the car, and even find your car for you if you forget where you parked. We’ve compiled a list of the 10 best car apps in a wide range of categories.

GasBuddy is an app that relies on crowdsourced data, but it’s designed to help you find the cheapest gas, wherever you are. Users can report gas prices through the GasBuddy website or app, and you can use the app to access that data when you’re on the road.

The app is free, but there are two premium annual memberships that add perks like gas discounts and roadside assistance. You can also sign up for free to use their basic Pay with GasBuddy service, which gives you a smaller gas discount at participating locations.

Torque is one of the original apps designed to communicate with ELM 327 OBD2 code readers via Bluetooth and Wi-Fi. There are many competing apps that do the same basic thing, but Torque still gets it done.