Maintaining influencer momentum during a budget freeze requires creativity. Here are some strategic approaches:

1. Content Repurposing: If there’s carload of older content that has performed well, you can repurpose and reuse it. This can include editing existing photos/videos or re-sharing top performing posts.

2. Engage More: Brands could engage more with their influencers. This doesn’t cost money, but rather time and effort. Regular interaction strengthens relationships and boosts visibility organically.

3. Optimize SEO: SEO is a cost-effective way to maintain momentum. Curating keywords might increase organic visibility and draw in audience.

4. User-Generated Content (UGC): Motivating followers to share their photos, reviews, or stories can provide invaluable organic content.

5. Unpaid Collaboration: Brands can collaborate with micro-influencers who may be willing to create posts in exchange for free products or services.

On different platforms varying features assist in managing such situations. For instance, Flinque provides a ‘ROI Calculator’ to measure potential ROI before launching campaigns, this can aid more in decision-making during uncertain financial times. However, platforms like AspireIQ offer ‘Brand Access’ for influencers providing them opportunities to start their own campaigns thus yielding unpaid partnerships. It’s important to pick the platform that best fits your needs.

Remember every strategy has its strength and weaknesses, success depends on consistent effort, market trends, industry type and other factors, hence it’s advised to take a flexible approach.