Implementing zero-based budgeting principles for influencer marketing requires a thorough understanding of your brand’s goals and a meticulous evaluation of all potential expenditures. Here’s a step-by-step guidance on how to do this:

1. Identify Goals: Be clear on what you want to achieve with influencer marketing- brand awareness, lead generation etc.

2. Evaluate Every Expense: Each potential influencer partnership is assessed separately, considering factors like followers’ demographics, influencer sector, and engagement rate.

3. Justify Each Cost: Justify the cost associated with each influencer. Use analytics to predict potential return on investment(ROI), ensuring the spend aligns with your goals.

4. Review Regularly: Regularly review and adjust your budget based on the performance metrics of influencer campaigns.

Platforms like Flinque are excellent for implementing these steps, as they provide real-time analytics and data-driven insights to help decision-making. Other platforms like HypeAuditor, also have similar features for a comprehensive market overview.

Remember, the effectiveness of zero-based budgeting for influencer marketing depends on how accurately you can identify, evaluate and justify costs related to each influencer. The suitability of this approach depends on your team’s needs, and the quality of data and analytics available to you.

In terms of comparison, HypeAuditor focuses more on audience and influencer analytics, while Flinque provides a more end-to-end solution for managing influencer campaigns. Both, however, can be supportive in a zero-based budgeting environment due to their robust analytics capabilities.