There is a lot of competition[26] in this field as well. However, just like other services, it is not easy anymore to rule the mobile application market. Most companies have acknowledged the potential of Mobile Apps to increase the interaction between a company and its target customers. With the fast progress and growth of the smartphone market, high-quality Mobile app development is essential to obtain a strong position in a mobile app store.
Kaplan categorizes mobile marketing along the degree of consumer knowledge and the trigger of communication into four groups: strangers, groupies, victims, and patrons. Consumer knowledge can be high or low and according to its degree organizations can customize their messages to each individual user, similar to the idea of one-to-one marketing. Regarding the trigger of communication, Kaplan differentiates between push communication, initiated by the organization, and pull communication, initiated by the consumer. Within the first group (low knowledge/push), organizations broadcast a general message to a large number of mobile users. Given that the organization cannot know which customers have ultimately been reached by the message, this group is referred to as "strangers". Within the second group (low knowledge/pull), customers opt to receive information but do not identify themselves when doing so. The organizations therefore does not know which specific clients it is dealing with exactly, which is why this cohort is called "groupies". In the third group (high knowledge/push) referred to as "victims", organizations know their customers and can send them messages and information without first asking permission. The last group (high knowledge/pull), the "patrons" covers situations where customers actively give permission to be contacted and provide personal information about themselves, which allows for one-to-one communication without running the risk of annoying them.[45]
Once you've collected your mobile numbers, verified that you have followed all of your legal responsibilities you can start your SMS marketing campaign. I'd suggest using a 3rd party service provider to ensure that you are able to track the return on investment for your campaign, embed an unsubscribe message, and easily manage your SMS marketing database including unsubscribes. 
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