Singlebox alternatives

12 Windows apps in the same category as Singlebox, ranked by what they have in common and by popularity.

• 
  Signal

  Signal is an encrypted communications application.

  Open source 8.32.0 3.4M ↓ ★ 16.6K
• 
  Telegram Desktop

  A cloud-based mobile and desktop messaging app with a focus on security and speed.

  Open source 7.3.3 1M ↓ ★ 33.3K messenger
• 
  Discord

  Your Place to Talk and Hang Out

  Proprietary 1.0.9266 882.4K ↓
• 
  Slack

  Slack brings the team together, wherever you are.

  Proprietary 4.52.182 9.8M ↓
• 
  Rocket.Chat

  Rocket.Chat is the leading open source team chat software solution. Free, unlimited and completely customizable with on-premises and SaaS cloud hosting.

  Open source 4.18.5 973K ↓ ★ 1.7K
• 
  Viber

  Free and secure calls and messages to anyone, anywhere.

  Proprietary 29.1.0.0 259.3K ↓
• 
  Pidgin

  Pidgin is a universal chat client, allowing you to consolidate all your different messaging apps into a single tool.

  Open source 2.14.14 175.4K ↓ messenger
• 
  Zulip

  Desktop client for Zulip, an open source team chat application.

  Open source 5.13.2 97.4K ↓ ★ 992
• 
  Session

  Onion routing based messenger

  Open source 1.18.3 17.3K ↓ ★ 596 messenger
• 
  Caprine

  Caprine is an elegant Facebook Messenger desktop app

  Open source 2.61.0 18.1K ↓ ★ 7.4K messenger
• 
  Mumble (client)

  Low-latency and high quality voice chat primarily intended for use while gaming.

  Open source 1.5.939 49.9K ↓ ★ 8.4K
• 
  Ferdium

  Messaging app for WhatsApp, Slack, Telegram, HipChat, Hangouts and many many more.

  Open source 7.2.3 44.8K ↓ ★ 4.7K

Comparison

App	Licence	Version	Updated	GitHub stars	Chocolatey downloads
SSinglebox	Proprietary	61.7.0	October 15, 2025	—	—
Signal	Open source	8.32.0	October 20, 2026	16.6K	3.4M
Telegram Desktop	Open source	7.3.3	October 22, 2026	33.3K	1M
Discord	Proprietary	1.0.9266	October 26, 2026	—	882.4K
Slack	Proprietary	4.52.182	October 20, 2026	—	9.8M
Rocket.Chat	Open source	4.18.5	October 23, 2026	1.7K	973K
Viber	Proprietary	29.1.0.0	October 14, 2026	—	259.3K
Pidgin	Open source	2.14.14	January 23, 2025	—	175.4K
Zulip	Open source	5.13.2	September 27, 2026	992	97.4K
Session	Open source	1.18.3	October 26, 2026	596	17.3K
Caprine	Open source	2.61.0	January 13, 2026	7.4K	18.1K
Mumble (client)	Open source	1.5.939	October 26, 2026	8.4K	49.9K
Ferdium	Open source	7.2.3	September 8, 2026	4.7K	44.8K