Marketing a mobile app can be a great way to increase visibility and engagement for your product. The cost associated with mobile app marketing depends on several factors such as the size of your target audience and the scope of your promotional activities. Generally, marketing for mobile apps is relatively inexpensive compared to other types of promotion due to its highly efficient targeting capabilities, but costs can still add up quickly if you're looking for expensive ad placements or have wide-reaching campaigns. When considering mobile app marketing, it’s important to weigh how much you can afford against how much exposure you hope to gain - spending too little won’t accomplish any useful results while blowing your budget might not make financial sense either.