Question: The messaging app that is an acronym for "Searchable Log of All Conversation and Knowledge" was founded by a business of what descent?

Context paragraphs:
Elymentz: Elymentz is a cross-platform mobile instant messaging app for Smartphones that provides free chat, chat translation, scheduled calls, voice conferencing to individuals and businesses.  The application has been cited for its ability to translate on the go inside a chat box and giving a seamless experience.  The app targets communication gaps, such as HD calling with in the network and VoIP calling outside of network, that have not been addressed by mainstream apps as a niche.

Phone log: A phone log is metadata collected from telephone or mobile phones for the purpose of surveillance or espionage.  This metadata may include: length of calls, phone numbers of both parties, phone-specific identification information, gps location, call proximity, and/or computer converted voice-to-text transcripts of the phone call conversation.  The advantage of converting audio to ASCII text metadata is that it makes it easily searchable for keywords and phrases, and is easily storeable for long periods of time on conventional database systems for years.  Phone logs are not limited to governmental collection.  For example, some private sector companies, such as banks, are known to collect phone log data on their internal phone network of all calls within and between the company and outside parties.

GroupMe: GroupMe is a mobile group messaging app owned by Microsoft.  It was launched in May 2010 by the private company GroupMe.  In August 2011, GroupMe delivered over 100 million messages each month and by June 2012, that number jumped to 550 million.  In 2013, GroupMe had over 12 million registered users.

Stewart Butterfield: Daniel Stewart Butterfield (born Dharma Jeremy Butterfield, 1973) is a Canadian entrepreneur and businessman of Polish descent, best known for being a co-founder of the photo sharing website Flickr and team messaging application Slack.

Slack (software): Slack is a cloud-based set of team collaboration tools and services, founded by Stewart Butterfield.  In simpler terms, it is a chatting program.  Slack began as an internal tool used by their company, Tiny Speck, in the development of "Glitch", a now defunct online game.  The name is an acronym for "Searchable Log of All Conversation and Knowledge".

OoVoo: ooVoo is a video chat and an messaging app developed by ooVoo LLC and owned by Krush Technologies, LLC.  ooVoo has applications for Android, iOS, Mac OS X, Microsoft Windows, Windows Phone, and Facebook.  The original Microsoft Windows app was released in 2007.

Bebo: Bebo is a social networking website launched in 2005.  It now describes itself as "a company that dreams up ideas for fun social apps;" Joe Mbu, the man behind the Bebo relaunch, has confirmed that the site will not be returning as a social network but as a company that makes social apps.  The company announced the launch of their newest app, Blab, in early 2014 which closed in 2016.  and in December 2014 a new version of Bebo launched as an avatar hashtag messaging app.

Grouptime: Grouptime is a technology start-up based in Munich, Germany, and focused on mobile first messaging apps.  The core product is Teamwire, an enterprise messaging app for mobile and desktop devices.

Jared Hecht: Jared Hecht is the co-founder and CEO of Fundera, an online small business lending aggregator.  Prior to Fundera, Hecht co-founded group messaging app, GroupMe with Stever Martocci.  After being live for 370 days, Microsoft purchased GroupMe for $80 million.  Prior to GroupMe, Hecht was an early employee at Tumblr and led business development.

Skout: SKOUT is the developer of a location-based social networking and dating application and website.  SKOUT was one of the first dating and mobile people discovery applications to emphasize generalized user location.  SKOUT is available on both iOS and Android operating systems.  Other SKOUT properties include Nixter, a nightlife app, and Fuse, an ephemeral group messaging app.  SKOUT reported that over 500 million connections were made using its app in 2013.

Supporting paragraphs: Stewart Butterfield Slack (software)
Answer: Polish