david 
There are tons of navigation applications in existence today. Choosing one over another is usually quite a task as each one has its own merits and demerits. Find below factors to consider when choosing the best navigation application for your iPhone.
Check for one that can be used offline. This will cost much less when in use as there are no roaming charges. It is also awesome because you can rely on it even in areas where there is poor network connectivity. This is one characteristic that is a must have. Not all of the navigation apps come with this feature so ensure you gather this information. This is also determined by the price as there are free applications and paid for apps.
Turn by turn directions is another navigation application feature that you really need to consider. One that can offer traffic updates and even bicycle routes is crucial. Having excellent features will enable you to always be on the right route and reach your destination. It is reliable for use even if you are travelling to a route you don’t know at all. With traffic updates you are also aware of which routes to avoid and therefore you are always on the right path. It is the ultimate way to navigate around traffic jams.
You should at all times consider one that has the ability to access offline maps. This is crucial as you get to preserve your data and extend your iPhone’s battery life. In case there is poor connectivity, you will not get lost on the road. In the event a need arises, offline maps can be downloaded and pre-installed.
Another vital characteristic to look for is for one that has a user friendly map interface. There is no need to struggle with an application when you need it to make work easier for you. Complicated navigation applications will successfully waste your time when you are trying to feed the locations and further frustrate you. Get one that is simple to use and helps you in your day to day travel rather than one that frustrates you.
A navigation application with warnings about your speed limit is a great one. The application will make your drive much safer because it will give you alerts whenever you are above the recommended speed limits. Such applications also have the knack of showing you where speed cameras are located which is also a plus. These are some of the very key characteristics to search for when getting that awesome navigation application for your iPhone.