| 251 | AAvaya WorkplaceAvaya Workplace Client is a software application (softphone) that integrates unified communications and collaboration capabilities across computers and mobile devices | 3.40.2.10 | Proprietary | February 25, 2026 | 95.7 MB | — |
| 252 | LLifesizeKeep connected whether your business is in-person, remote, or hybrid with Lifesize. | 3.0.19 | Proprietary | June 12, 2026 | 122.5 MB | — |
| 253 | QQQAn instant messaging tool that gives you the best way to keep in touch with your friends and family | 9.9.33.52230 | Proprietary | August 25, 2026 | 314.6 MB | — |
| 254 |  OverwatchKnow who or what touched your Windows PC, and when. | 2.0.2 | Open source | August 16, 2026 | — | — |
| 255 | 阿阿里旺旺Alibaba's instant messaging and trading tool tailored for transactions on Taobao and 1688 | 10.03.39C | Free | March 21, 2026 | 346.1 MB | — |
| 256 | BBeeBEEPBeeBEEP is the office messaging application that does not need an external server to let users communicate with each other. | 5.8.6 | Proprietary | March 19, 2024 | 30.3 MB | — |
| 257 | BBrosixBrosix is an Instant Messaging Software for Businesses, providing encrypted, real-time communications, across multiple applications, to streamline how day-to-day business gets done. | 5.2.4 | Proprietary | May 28, 2026 | 103.6 MB | — |
| 258 | 移移动会议面向政府、企业、个人提供的云会议产品。实现客户端/会议终端/智慧屏/web/小程序多终端融合互通，重新定义高效、安全、智能的云端协作新标准。 | 2.4.2 | Proprietary | August 7, 2026 | 242.3 MB | — |
| 259 | CCisco Webex Productivity Toolsschedule cisco webex meetings directly from within Microsoft Outlook | 45.2.0.63 | Proprietary | May 27, 2026 | — | — |
| 260 |  EchowireSelf-hosted, federated chat platform with voice, video, threads, and scheduled events. | 1.20.0 | Open source | April 18, 2026 | — | — |
| 261 | IIntermedia UniteThe Unite Desktop let you chat, meet, call, and more, from anywhere. Transform your devices into powerful communications tools. | 2.33.58 | Proprietary | September 29, 2026 | 235.8 MB | — |
| 262 | CCloudya (without CRM)Cloudya Desktop App | 2.3.0 | Proprietary | August 21, 2026 | 151.8 MB | — |
| 263 | CCloudya (with CRM)Cloudya Desktop App | 2.3.0 | Proprietary | August 22, 2026 | 457.6 MB | — |
| 264 | TTRBOnet EnterpriseAward-winning IP Dispatch System | 6.5.0.9137 | Proprietary | June 16, 2026 | 499.1 MB | — |
| 265 | TTRBOnet PlusA comprehensive fully IP-based control room solution for any MOTOTRBO radio network from IP Site Connect to Capacity Max. | 6.5.0.9137 | Proprietary | June 18, 2026 | 481.9 MB | — |
| 266 | IInfinity ConnectAn easy-to-use app to connect directly to virtual meeting rooms or any other video endpoint, securely and seamlessly. | 1.14.0 | Proprietary | April 30, 2026 | 107.4 MB | — |
| 267 | SSangoma MeetGo ahead, video conference with your entire team; whether they’re working from home or in a remote office - or get the whole family together and connect! | 5.9.0 | Proprietary | August 29, 2025 | — | — |
| 268 | ZZuluZulu enables the user to communicate and collaborate with colleagues and clients. | 3.5.2 | Proprietary | May 22, 2021 | — | — |
| 269 | AAscendCall, message, meet, and access files, from wherever you are. | 2.33.58 | Proprietary | September 30, 2026 | — | — |
| 270 | SSlack BetaSlack brings the team together, wherever you are. | 4.26.0-beta2 | Proprietary | July 27, 2022 | 102.1 MB | — |
| 271 |  Nexa Beep제로 컨피그 로컬 네트워크 메신저 | 0.6.0 | Proprietary | October 19, 2026 | — | — |
| 272 | 小小鱼易连Provides video conferencing services to users. | 3.11.25.33571 | Proprietary | March 30, 2026 | 171.1 MB | — |
| 273 | 33CX Phone SystemEnterprise phone system | 20.0.9.995 | Proprietary | June 17, 2026 | 156.7 MB | — |
| 274 | BBotimFree, Secure & Reliable Messages and Calls | 1.7.5 | Proprietary | March 9, 2025 | — | — |
| 275 | DDingTalkDingTalk, make work and study easy | 7.1.0-Release.10199111 | Proprietary | June 1, 2026 | 499.1 MB | — |
| 276 | DDingTalkDingTalk, make work and study easy | 8.3.10-Release.260413002 | Proprietary | June 1, 2026 | 468.2 MB | — |
| 277 | CConvyMore structured, more asynchronous, and less distracting messenger for remote communication. | 1.2.0 | Proprietary | July 15, 2024 | 73.9 MB | — |
| 278 | CCircleMeet your members where they are. | 0.1.3 | Proprietary | April 28, 2026 | 89.9 MB | — |
| 279 | WWebexWith industry leading video conferencing, calling, and contact center solutions, Webex fuels hybrid work for businesses of all sizes. | 46.8.0.35631 | Proprietary | August 17, 2026 | 580.9 MB | — |
| 280 | DDialpad MeetingsAll in one AI-powered customer communications platform | 2609.2.0 | Proprietary | September 23, 2026 | — | — |
| 281 | DDiscord CanaryYour Place to Talk and Hang Out | 1.0.328 | Proprietary | January 21, 2025 | 108.8 MB | — |
| 282 | DDiscord DevelopmentYour Place to Talk and Hang Out | 1.0.771 | Proprietary | January 27, 2025 | 108.8 MB | — |
| 283 | DDiscord PTBYour Place to Talk and Hang Out | 1.0.1090 | Proprietary | January 21, 2025 | 107.2 MB | — |
| 284 | DDiscord (x86)Your Place to Talk and Hang Out. | 1.0.9059 | Proprietary | January 21, 2025 | 107.2 MB | — |
| 285 | GGuildedGuilded upgrades your group chat and equips your server with integrated event calendars, forums, and more – 100% free. | 1.0.9329126-release.Release - Prod Desktop App_master_20251111.1 | Proprietary | November 12, 2025 | — | — |
| 286 | AAll-in-One MessengerOne app for all your communication services! Use messengers like WhatsApp, Telegram, Messenger, Skype, Gmail and many more in one app! | 2.5.0 | Proprietary | July 16, 2025 | 108.8 MB | — |
| 287 | HHideMyShareHide any app window from screen sharing and recording at the Windows capture level. | 1.0.2 | Proprietary | October 21, 2026 | 116.3 MB | — |
| 288 | KKaidanJabber IM Client | master | Open source | February 14, 2025 | 110.1 MB | — |
| 289 | TTokodonA modern client for Mastodon and other decentralised servers that implement its API (such as Pixelfed). | 6074 | Open source | January 14, 2026 | — | — |
| 290 | HHIPIN v4HIPIN Voip software voor KPN/Routit voip telephone systems | 4.3.2.6316 | Proprietary | April 16, 2024 | 175.9 MB | — |
| 291 | KKakao WorkKakao's first work platform, Kakao Work | 2.20.1.5118 | Proprietary | May 2, 2025 | — | — |
| 292 | 云云之家New Generation Intelligent Collaborative Cloud Service. | 5.0.6 | Proprietary | July 4, 2026 | 170.7 MB | — |
| 293 |  LunexA private, end-to-end encrypted real-time desktop chat application. | 0.1.2 | Open source | March 29, 2026 | — | — |
| 294 |  Meeting RingerRings whenever you have an upcoming meeting in your calendar linked to a GVC app. | 0.1.26 | Free | October 6, 2026 | — | — |
| 295 | MMiTeam MeetingsA video conferencing solution that allows you to connect with your team and customers in real-time. | 1.7.0 | Proprietary | May 14, 2025 | 61.9 MB | — |
| 296 | MMozilla Thunderbird Beta (MSIX)A free and open source email, newsfeed, chat, and calendaring client that is easy to set up. | 148.0.6 | Open source | February 19, 2026 | 152.6 MB | — |
| 297 |  Msgify LiteOffline Archive Viewer for Telegram exports and database backups | 0.1.1 | Open source | February 23, 2026 | — | — |
| 298 | UUNIVERGE BLUE ™ CONNECTA fully integrated intelligent cloud-based unified communications (UC) solution | 2.32.143 | Proprietary | September 21, 2026 | — | — |
| 299 | DDooray! MessengerBusiness messenger specialized for collaboration | 2.2.2.1 | Proprietary | September 21, 2025 | 5.3 MB | — |
| 300 | PPexip (My Meeting Video)Video meetings | 3.0.14 | Proprietary | June 11, 2025 | 48.7 MB | — |