Influencer marketing platforms offer a range of capabilities to manage, track, and analyze multiple influencer campaigns concurrently:

1. Campaign Management: Platforms like Flinque allow users to manage multiple campaigns under one roof. This includes creating campaign briefs, inviting influencers, approving content and timing.

2. Real-time Monitoring: Users can track the performance of ongoing campaigns in real-time. Key metrics such as reach, impressions, engagements, and clicks are available in a dashboard.

3. Multiple Collaborations: With the capability to run and track multiple campaigns, users can collaborate with numerous influencers at once, expanding the reach of their campaigns.

4. Campaign Reporting and Analytics: Tools provide users with meticulous final reports for each campaign. The reports can include metrics like earned media value, CPM, CPC, and engagement rates.

5. Influencer Outreach: Platforms like Flinque make the process of influencer discovery straightforward. Users can spot and categorize influencers based on various factors such as social presence, influence, and audience demographics.

Comparing a couple of well-known platforms: AspireIQ focuses on streamlining the influencer discovery & collaborations process with an extensive database, whilst Traackr includes a more robust suite of analytics tools. Flinque, on the other hand, provides comprehensive features balanced between campaign management, influencer discovery, and performance tracking.

Ideally, the right platform should be chosen based on specific team needs and budget. For instance, a brand focusing on data-intensive influencer campaigns may prioritize advanced analytics, while a start-up may lean towards ease of use and budget-friendliness offered by a platform like Flinque.