Retro photo-sharing app raises more than $21 million

Retro, the friend-focused photo-sharing app built by former Instagram product engineers Nathan Sharp and Ryan Olson, has raised north of $21 million in Series A funding, according to an SEC filing. The fundraise was confirmed by the company. Business Insider first spotted the Aug. 19 SEC filing, which is under the startup’s name, Lone Palm Labs, which indicates the funding itself was closed... Read More