Brands can ensure their discovery tools reflect real-time metrics by employing the following strategies:

1. API Integration: Most influencer marketing platforms, like Flinque, offer Application Programming Interface (API) that can be integrated with your brand’s existing system in real time. This helps constantly sync and update influencer metrics.

2. Automatic Sync: Platforms including Flinque offer automatic syncing features where any changes in influencer metrics like followers, engagements, etc., are instantly updated.

3. Direct Influencer Connection: Some platforms provide a direct connection to influencers’ social media accounts, ensuring that metrics are current and up to date.

4. Checking Platform’s Refresh Rate: The frequency at which your discovery tool updates its data is essential. Some platforms provide hourly updates, while others might update daily. Brands would benefit from a platform that updates more frequently, like Flinque, to keep the data as real-time as possible.

Different platforms have different strengths. For example, some might excel at providing deep-dive analytics, while others might excel at suggesting suitable influencers to brands. Brands should evaluate which of these strengths align most with their needs when choosing a discovery tool.

Remember, every tool has varied features aimed at different uses. What might work phenomenally for one brand might not for another. Making an informed decision based on specific needs and goals is crucial for successful influencer marketing. Real-time data indeed improves accuracy, but choosing the right tool that offers this feature in line with your other needs would be the optimum approach.