The SK Telecom-backed app advertising and monetisation service provider is set to be bought by Zynga following $21m of venture funding.

Opioid addiction care provider Groups Recover Together and healthcare management platform developer Vim each raised $60m, with Optum Ventures backing both rounds.

SoftBank Vision Fund led a $75m round valuing OKR platform developer WorkBoard at $800m while therapist network provider Headway hit a $750m valuation.

The CAA-backed video streaming technology increased its valuation to $1bn in a Coatue-led series D round.

Framestore Ventures had backed the online comics platform developer's series B round, before the latter announced its closure last month.

Solidia Technologies, Kelun Biotech and Doer Biologics all raised more than $70m while Sony added cash to a round valuing Discord at $7bn.

The Tencent and SIG China-backed podcasting app developer, valued at $3.5bn three years ago, has filed for a US initial public offering.

Driverless vehicle developer EasyMile closed a $66.4m round featuring Alstom and Continental while UCB and LivaNova-backed EEG technology developer Ceribell secured $53m.

Rakuten took part in a $37m round for virtual kitchen operator Taster while Nano Dimension is buying M12-backed 3D microprinter developer NanoFabrica for up to $54.9m.

Bonnier was among the investors that added $800m to the marketing technology provider's latest round, with $600m funding its purchase of SparkPost.