Question: Dominions 4: Thrones of Ascension has an active community on a VoIP application, which has over 45 million users as of May 2017, and which other platform?

Context articles: Piktochart
Talmon Marco
Discord (software)
QuteCom
Qihoo 360
Mobile dialer
PrivacyStar
Mobile communications over IP
Dominions 4: Thrones of Ascension
Flipora

Piktochart is a web-based infographic application which allows users without intensive experience as graphic designers to easily create professional-grade infographics using themed templates.
 An important feature of Piktochart is its HTML Publishing capability, which generates infographics that are viewable online with multiple clickable elements for users.
 Additionally, the program provides tools to add interactive maps, charts, videos and hyperlinks.
 In January 2017 the platform had more than five million users from 184 countries.
Talmon Marco is an Israeli-American entrepreneur and businessman, best known as the CEO and founder of Viber - a proprietary cross-platform instant messaging VoIP application for smartphones with over 400 million users and Juno - a ride sharing service.
Discord is a proprietary freeware VoIP application designed for gaming communities.
 Discord runs on Windows, macOS, Android, iOS, Linux, and in a web browser.
 As of May 2017, Discord has over 45 million users.
QuteCom (previously called WengoPhone) is a free-software SIP-compliant VoIP client developed by the QuteCom (previously OpenWengo) community under the GNU General Public License (GPL).
 It allows users to speak to other users of SIP-compliant VoIP software at no cost.
 It also allows users to call landlines and cell phones, send SMS and make video calls.
 None of these functionalities are tied to a particular provider, allowing users to choose among any SIP provider.
Qihoo 360 (; approximate pronunciation CHEE-hoo), full name Qihoo 360 Technology Co. Ltd., is a Chinese internet security company known for its antivirus software (360 Safeguard, 360 Mobile Safe), Web Browser (360 Browsers), and Mobile Application Store (360 Mobile Assistant).
 It was founded by Zhou Hongyi and Qi Xiangdong in June 2005.
 Qihoo 360 had 496 million users for its Internet Security products and 641 million users for its Mobile Antivirus products as of June 2014.
Mobile Dialer is a software application installed and used on mobile phones. Various software solution providers offer branded mobile dialers.
 They are used to make VoIP (Voice over Internet Protocol) calls from a mobile hand set.
 The "Mobile Dialer" or "Mobile VoIP Dialer" uses SIP signaling and can be mapped to a Softswitch or an IP device to work a device for voice communication.
 Newer mobile dialers also allow users to originate a Voice Call or SMS using their mobile handset.
 In many countries, VoIP is considered as "illegal Business" and is banned by the government.
 Mobile Dialer application can run behind network address translation (NAT) and on private IP and can pass through firewalls or blocked networks when combined with tunneling software.
PrivacyStar is a service that identifies who is calling and why, and provides for call complaint filing which reports to the Federal Trade Commission.
 The PrivacyStar service is available on the web and on mobile applications for Android and iOS.
 On several applications powered by PrivacyStar, call and text blocking is available.
 The applications, along with PrivacyStar’s iPhone Lookup+ application, enable users to file potential debt collector and telemarketer violations directly to the FTC.
 The application captures detailed information about possible Fair Debt Collection Practices Act violations including date, time, number, and identity and allows users to easily provide this information to regulatory agencies so they may take action.
 PrivacyStar has over 1.2 million users who have blocked over 120 million calls and filed over 300,000 complaints directly with the Federal Trade Commission as of September 2012.
 In fact, PrivacyStar is the leading source of all call complaint data reported to the FTC.
 In 2015, its users filed 31% of all call complaints.
 On February 13, 2013, PrivacyStar launched a free SMS spam complaint filing feature for Android smartphones.
 The application allows users to file text message spam complaints in addition to the existing ability to file call complaints directly to the Federal Trade Commission from their Android phones.
MoIP, or mobile communications over internet protocol, is the mobilization of peer-to-peer communications including chat and talk using internet protocol via standard mobile communications applications including 3G, GPRS, Wifi as well as Wimax.
 Unlike mobile VoIP, MoIP is not a VoIP program made accessible from mobile phones or a switchboard application using VoIP in the background.
 It is rather a native mobile application on users’ handsets and used to conduct talk and chat over the internet connection as its primary channel.
Dominions 4: Thrones of Ascension is a fantasy turn-based strategy game created and published by Illwinter.
 It is the fourth game in the Dominions series, preceded by "", "Dominions II: The Ascension Wars" and "Dominions III: The Awakening".
 Dominions 4 was initially released in Desura and later at GamersGate.
 Dominions 4 went through the Greenlight process and was released on Steam in September 2013, which became the most popular platform for looking for multiplayer games and discussions after Desura shut down.
 Some active communities can also be found on Discord and 4chan.
Flipora is a personalized content recommendation service that recommends web content to users based on their interests and web activity.
 Flipora’s machine learning algorithm automatically categorizes the web into thousands of interest categories and provides content to users that suits their identified interests.
 Users can also follow topics and other like-minded users to receive content recommendations that are further personalized.
 Flipora users can upvote content recommendations they enjoy and automatically promote those content recommendations to their followers.
 Flipora had amassed 8 million users by June 2012 and crossed 25 million users worldwide in April 2014.