If you plan to keep your Online device for several years, consider purchasing a lifetime maps plan. This plan, called nuMaps Lifetime, permits you to download the latest maps up to four times per year for the life of your device. Lifetime maps can save you hundreds of dollars over several years, although the initial cost is higher than a single map update. At the time of publication, a nuMaps Lifetime plan costs $89.99. After you pay this fee, you won’t need to buy a map for your device again.