Human cloud firm Sprig Inc. shut down its food delivery app effective May 26, the company announced in a blog post. The San Francisco-based firm, launched in 2013, cooked and delivered its own meals via a network of on-demand couriers.

Co-Founder and CEO Gagan Biyani wrote that while he is “sad that the Sprig model did not work out,” the food delivery space on the whole is growing.

“The demand for Sprig’s convenient, high-quality food was always incredibly high, but the complexity of owning meal production through delivery at scale was a challenge,” he wrote. “After spending four years as a food-tech industry insider, I’m amazed at what the space has become.”

Sprig had raised $56.7 million, TechCrunch reported. According to Staffing Industry Analysts research into the human cloud and gig economy, investors have been fond of the human cloud and access to easy money has been a significant growth driver to the industry, enabling many human cloud firms to sustain losses while focusing on gaining customers and market share.

However, David Francis, senior research analyst at Staffing Industry Analysts, said it recently has become more difficult to raise money, which has caused many firms to shift from a “growth-at-any-cost mindset” to a model of sustainable growth.

“Should funding continue to be anemic, the human cloud will continue to grow, though likely at more modest rates — and it may become a less crowded place,” Francis said. “That said, it is probably not a terrible idea for human cloud firms to keep at least one eye on their bottom line.”