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CLUSTER CROSS-MESSAGING-REAL · 17 ENTRIES · EARLIEST ENTRY 2025-03-04

Cross-platform real-time messaging apps

This cluster consists of cross-platform real-time messaging applications that emphasize secure authentication and multi-device sync. Many include group chats, file attachments, and optional voice/video calling, with a few extending into fitness, coding, or cross-service bridging. The dated history before the index start is too thin to read a shape from—only 3 entries have timestamps, so the cluster predates reliable tracking or is largely undated. Traction leaders are RealtimeAlgoChatApp, my_app, and expo-fitness-chat-app, each at 0 stars, indicating early-stage activity with no standout momentum.

Entry timeline

ENTRY TIMELINE

DEC 2024: 1JAN 2025: 1MAR 2025: 1DEC 2025: 1AUG 2026: 7SEP 2026: 6
DEC 2024SEP 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 · 2 hand-coded · 14 unlabelled

Operator · 6 hobby · 1 indie · 1 commercial · 2 open source · 7 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 17 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01RealtimeAlgoChatApp1★21 days—Cross-platform chat app for real-time messaging and collaborative coding with peers.
  2. 02Pulse0★24 days—hand-codedhobbyCross-platform desktop messaging app for real-time chats with threads, reactions, presence, search, and a command palette.
  3. 03Telegram0★28 daysliveopen sourceCross-platform instant messaging app offering synced chats, cloud storage, group support, and secure encryption across devices.
  4. 04phazechat.world0★19 days—indieCross-platform messaging app offering direct messages, group spaces, voice and video calls, screen sharing, and end-to-end encryption.
  5. 05caba-android-app1★2 molivehobbyCross-platform messaging app that lets users exchange secure real-time chats across mobile and web devices.
  6. 06Gather1★2 mo—ai-builtCross-platform messaging app that connects users on mobile and web for real-time chat.
  7. 07addiits_chat0★1 mo—Cross-platform chat app that lets users join rooms, exchange messages, and receive push notifications.
  8. 08jiwu-mall-chat-bin0★2 moliveopen sourceLightweight chat application available across multiple platforms for real-time messaging accessible from anywhere.
  9. 09my_app0★1 mo—commercialCross-platform messenger for company communication with individual and group chats, file attachments, and read receipts.
  10. 10expo-fitness-chat-app0★1 mo—Cross-platform chat app with real-time messaging, fitness tracking, social feed, and shopping catalog for mobile and web.
  11. 11sharkcordclient0★1 mo—hand-codedhobbyCross-platform client app that connects to a chat platform, providing native messaging on desktop and mobile without official software.
  12. 12HOPLANE-MASSAGER0★1 molivehobbyReal-time messaging app with secure account authentication, letting users exchange messages across mobile, tablet, and desktop devices.
  13. 13LazyChat0★1 mo—hobbyCross-platform messaging app that offers phone number login, real-time one-to-one chat, media sharing, and voice or video calls.
  14. 14GupShupp0★1 mo—Cross-platform mobile application for real-time group chat, enabling users to create discussion groups and exchange messages instantly with other members.
  15. 15chatapp0★1 yrabandoned—Cross-platform chat application that provides real-time messaging and secure authentication for users.
  16. 16ChatApp0★1 yrabandoned—hobbyCross-platform mobile chat app that lets users send and receive instant text messages and communicate with friends.
  17. 17MEGA0★unknownliveBrowser extension that provides secure messaging for use across multiple platforms.

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.