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CLUSTER COMPANION-NOTIFICATIONS-SMARTWATCH · 20 ENTRIES · EARLIEST ENTRY 2016-12-09

Smartwatch companion apps

This cluster comprises companion applications for smartwatches that handle notifications, health data, firmware updates, time sync, and device control across brands like Pebble, Garmin, Bangle.js, Huami, and G-Shock. Dated entries before the index start span from 2015-10 to 2026-07, appearing sporadically with no clear pattern; the cluster's dated history is too thin to read a shape from. Traction leaders are Pulse, Gravel, and Casio G-Shock Smart Sync, each showing 0 stars in activity signal.

Entry timeline

ENTRY TIMELINE

OCT 2015: 1DEC 2016: 1SEP 2018: 1JUL 2022: 1AUG 2022: 1NOV 2023: 1MAR 2025: 1MAR 2026: 1JUN 2026: 1JUL 2026: 1AUG 2026: 3SEP 2026: 5OCT 2026: 2
OCT 2015OCT 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 · 4 hand-coded · 16 unlabelled

Operator · 5 hobby · 1 commercial · 12 open source · 2 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01terento25★21 daysliveA native macOS app for safely installing and managing offline maps on Garmin smartwatches via MTP.
  2. 02Pulse0★1 moliveopen sourceMobile app that pairs with Garmin watches to sync and display health, sleep, and fitness data locally without cloud or vendor app.
  3. 03watch-bridge1★18 days—hobbyPC companion service that relays Douyin private messages to a smartwatch over an encrypted local connection, including emoji support and a config page.
  4. 04Zelp0★29 daysliveopen sourceCompanion mobile app that retrieves smartwatch pairing keys, GPS packs, firmware, and apps from cloud services for third-party watch software.
  5. 05ollee-shortcuts-ios0★3 days—hobbyiPhone companion app that pairs with a wearable watch and exposes beep, name tag, and clock controls through Apple Shortcuts.
  6. 06Detent0★10 dayslivehobbyPair of apps that turns an old smartwatch into a wireless hardware knob and status display for controlling a computer.
  7. 07Gravel0★1 moliveopen sourceCompanion app for smartwatches that provides notifications, health tracking, weather, and firmware updates on phones without Google services.
  8. 08Casio G-Shock Smart Sync0★23 dayslivehand-codedopen sourceMobile app that connects to Bluetooth G-Shock watches to sync calendars and alarms, adjust time zones, and enable remote camera control without an account.
  9. 09Bangle.js Gadgetbridge0★27 daysliveopen sourceAndroid companion app that pairs with Bangle.js smartwatch to display notifications, messages, and call alerts from the phone, with actions like answering or dismissing calls.
  10. 10MACBOOK_aviator_v10★27 days—Desktop app that connects to a Bluetooth smartwatch to sync the computer's current date and time.
  11. 11lan-udp-alarm-system0★28 days—hobbyAndroid app that lets an old smartwatch trigger a loud alarm and vibration on a lost phone over the same Wi-Fi network.
  12. 12wristbridge0★1 mo—hand-codedhobbyApp that relays Android notifications to an Apple Watch without an iPhone by using a cloud email push channel, plus optional health data sync.
  13. 13Cosmo: Family Connection0★2 molivecommercialCompanion app for children's smartwatches that manages contacts, location tracking, routines, and activity.
  14. 14OW Camera 2 For Pebble0★4 moliveopen sourceSmartwatch app that lets users control their phone camera remotely, including live preview, shutter trigger, and manual exposure settings.
  15. 15AsteroidOS Sync0★3 yrabandonedlivehand-codedopen sourceMobile companion app that synchronizes time, weather, and notifications with a smartwatch and helps locate a paired device via Bluetooth.
  16. 16Amazfish0★7 mostaleliveopen sourceCompanion application that synchronizes activity and health data from Huami smartwatches and PineTime devices to a computer or phone.
  17. 17Internet Helper for Gadgetbridge0★1 moliveopen sourceCompanion utility that grants a smartwatch companion app controlled, permissioned access to internet transfers and WiFi settings.
  18. 18Watchmate0★1 yrabandonedliveopen sourceCompanion desktop and mobile application that manages a smartwatch by syncing time, updating firmware, and forwarding notifications from a computer.
  19. 19Fit Notifications0★2 yrabandonedliveopen sourceAndroid app that mirrors all phone notifications to compatible Fitbit wearables for at-a-glance viewing.
  20. 20Dialer for Pebble0★5 yrabandonedlivehand-codedopen sourceMobile app that enables Pebble smartwatch users to control phone calls, including answering, muting, and toggling speakerphone, with an optional companion watchapp.

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.