A weekly roundup of must-read L.A. tech investments and acquisitions.

Stroer Content Group

$18.3 million

Type: Sale

Location: Woodland Hills

Seller: United Online Inc.

Description: Internet portfolio company United Online has sold social media network StayFriends to Stroer Content Group of Germany. The move is part of the company’s “strategy to exit the social media business following the sale of Classmates in August 2015,” said Interim Chief Executive Jeff Goldstein, in a statement.

Three Day Rule

$1.2 million

Type: Equity

Location: West Los Angeles

Investors: Seed funds raised from Dallas Angels Network and other angels

Description: Online dating service Three Day Rule provides matchmaking services. The company vets potential matches for clients using an online quiz and facial recognition technology.

Humin

Undisclosed

Type: Acquisition

Location: West Hollywood

Buyer: Tinder

Description: Tinder has purchased contact management app Humin of San Francisco for an undisclosed amount. Tinder Chief Executive Sean Rad has talked for years of building a professional networking app using Tinder’s swipe-to-connect feature. Humin’s platform, which helps people manage their social and professional contacts, could aid those ambitions. Humin Chief Executive Ankur Jain will join Tinder as vice president of product and Chief Operating Officer David Wyler will become vice president of partnerships. The two executives will lead new product development initiatives that will incorporate Humin’s intellectual property.

Technology reporter Garrett Reim can be reached at [email protected]. Follow him on Twitter @garrettreim for the latest in L.A. tech news.