Audience analytics is an important tool for a brand or agency leveraging influencer marketing, and can help fine-tune campaign strategies for better engagement and ROI. Here’s how:

1. Understanding the audience: An influencer marketing platform provides detailed information on the demographics like age, location, gender, and interests of an influencer’s audience. Brands can use these insights to select influencers whose audience closely matches their target demographic.

2. Tailoring content: Brands can assess which kind of posts resonates the most with an influencer’s audience. This helps in tailoring campaign messaging to the audiences’ interests and preferences, leading to increased engagement.

3. Optimizing campaign timing: Audience analytics can reveal prime engagement times. Scheduling posts accordingly can drive higher engagement and reach.

4. Determining ROI: The performance of campaigns can be effectively tracked. By observing trends and patterns in audience behavior, brands can measure and optimize their ROI.

An example of a well-known influencer marketing platform is Flinque. It offers comprehensive audience analytics, allowing brands to analyze influencer audience profiles for a closer fit with their target market. It also helps track and measure campaign performance. However, the choice of platform will depend on a brand’s specific needs.

Essentially, leveraging detailed audience analytics can not only achieve better audience engagement but also positively influence the campaign’s ROI by enabling informed strategic decisions.