Whitespace.
See who already built your idea — and the space they left open.

CLUSTER COMMUNICATION-GROUP-MESSAGING · 31 ENTRIES · EARLIEST ENTRY 2025-10-21

Real-time messaging apps

This cluster comprises real-time messaging applications that support direct and group chats, media sharing, and voice/video calls. The dated entries are sparse from 2017 to mid-2025, then become more frequent from late 2025 through mid-2026, with the latest pre-index entries in July 2026. Traction is led by CHAT with 8 stars, while other members have zero stars.

Entry timeline

ENTRY TIMELINE

JUN 2011: 1DEC 2016: 1JUL 2017: 1SEP 2020: 1OCT 2020: 1FEB 2025: 1AUG 2025: 1OCT 2025: 1DEC 2025: 1JAN 2026: 1FEB 2026: 1APR 2026: 1AUG 2026: 5SEP 2026: 12OCT 2026: 2
JUN 2011OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 3 hand-coded · 7 unlabelled

Operator · 3 hobby · 4 open source · 4 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 11 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 21client-ios0★27 days—hand-codedNative mobile messaging app that provides chat lists, contacts, group conversations, and voice calls.
  2. 22Contacts0★1 mo—Real-time messaging and contact management app with authentication, device sync, and direct chat.
  3. 23iConn3★5 molivehobbyReal-time messaging app that supports direct messages, group chats, message reactions, editing, and online presence.
  4. 24whatsapp1★10 mostale—hobbyMobile messaging app that offers real-time chat, file sharing, typing indicators, and voice notes for personal and group conversations.
  5. 25VK Messenger0★6 mostalelivehand-codedopen sourceMessaging application offering text and voice chat, unlimited group calls, and contact syncing from phone and social network contacts.
  6. 26Chats0★7 mostaleliveopen sourceMessaging app for mobile and desktop that supports SMS, MMS, XMPP, and Matrix protocols for one-to-one and small group chats.
  7. 27Fluxer0★7 mostaleliveopen sourceMessaging app offering text chat, voice and video calls, screen sharing, and community channels for group communication.
  8. 28chat-room0★11 mostale—hobbyMobile messaging app offering group chats, channels, and voice and video calls for real-time communication.
  9. 29com.qq.weixin.spark0★1 yrabandonedlivehand-codedopen sourceMobile and desktop messaging application for text, voice, and video chat with a social feed for contacts.
  10. 30Whisper - Text and Video Chat0★3 yrabandonedliveMobile messaging app that supports text, video, pictures, voice messages, group chat, and audio/video calls with friends worldwide.
  11. 31BAAWDE TATI - Les trois expertises0★unknownliveai-builtMessaging app offering chat, calls, ephemeral statuses, and client-business collaboration features.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.