The charges of app marketing services can vary widely depending on the specific services required, the complexity of the app, the size of the target audience, and the marketing budget. Here are some common app marketing services and their potential costs:

App Store Optimization (ASO): ASO services can range from a few hundred dollars to several thousand dollars depending on the complexity of the app and the level of optimization required.

Paid Advertising: The cost of paid advertising can vary depending on the advertising platform, the target audience, and the ad format. For example, on Facebook Ads, the cost per click (CPC) can range from $0.50 to $2.00 or more.

Social Media Marketing: The cost of social media marketing can vary depending on the social media platform, the size of the target audience, and the level of engagement required. For example, on Instagram, influencer marketing campaigns can cost anywhere from a few hundred dollars to several thousand dollars.

Influencer Marketing: The cost of influencer marketing can vary widely depending on the influencer’s following, engagement rate, and the scope of the campaign. A small-scale campaign with micro-influencers may cost a few hundred dollars, while a large-scale campaign with celebrity influencers can cost tens or hundreds of thousands of dollars.

Referral Programs: The cost of referral programs depends on the rewards offered and the number of participants. For example, offering a $5 reward for each referral could cost several thousand dollars if thousands of users participate.

Email Marketing: The cost of email marketing depends on the email marketing platform used and the size of the email list. Prices typically range from a few hundred dollars to several thousand dollars per month.

                       The cost of app marketing services can vary widely, and it’s important to set a budget based on the specific needs and goals of the app.