Case Study: Butternut Box achieves 16% lower CPA and 53% more conversions with The Cirqle

Butternut Box’s Marketing Triumph Leveraging Partnership Ads for Stellar -16% CPA and +53% Conversion Gains

Butternut Box, a UK-based custom dog food subscription service, wanted to test creator marketing in its home market after a successful pilot in the Netherlands. Working with The Cirqle and its partnership ads software, the brand set out to improve paid social efficiency, lower customer acquisition costs, and drive stronger brand engagement through authentic influencer-led content.

The Cirqle helped Butternut Box collaborate with local creators on Instagram Reels and in-feed posts, then split test partnership ads against regular paid social. The campaign delivered a 16% lower CPA, a 53% increase in conversions, and a 34% lower cost of add-to-cart actions, while partnership ads alone cut CPA by 23%.

Butternut Box