Foursquare API Startups

Cuddli was a dating app designed specifically for geeks that grew to 100,000 users through earned media and in-person community engagement at geek events. Despite achieving category leadership and strong product-market fit, the startup failed to find a sustainable monetization strategy and ran out of personal runway after four years of bootstrapped operations. The founders ultimately shut down rather than compromise their values by selling to unethical acquirers.

Leedsift is a B2B sales intelligence platform that mines social media data to identify buying intent signals and deliver qualified leads to sales teams. Founded by technical co-founders in 2012, the company spent three years pivoting through consumer-facing and agency-focused models before finding product-market fit in the B2B SaaS lead generation space. Today, with 105 customers and growing 13% month-over-month, they are approaching $1M ARR.