
Focus
A clear focus timer with configurable focus, break, and long-break lengths. Start, reset, or skip a phase from one quiet screen.
Koi and Vinyl Angel live quietly at the edge of Windows. Open the Hub when you need focus, planning, local search, music, screenshots, recent activity, weather, or desktop organization.
—Release notes—
Checking the official release…
—Release notes—
Checking the official release…
I worked hard to make these companions for everyone, and they are free to use. Please do not use them for commercial purposes.
You are always welcome to visit my channel and tell me how the companions feel to use in the comments beneath any video.Focus for a while, plan the day, find a file, or peek at the weather—Koi and Vinyl Angel keep each tool close by until you need it.

A clear focus timer with configurable focus, break, and long-break lengths. Start, reset, or skip a phase from one quiet screen.

Add a dated or repeating item, attach a time, then mark it done or remove it when the day changes.

Search Koi's own local index and narrow results by file type, dates, path, case, whole words, or regular expressions.

A local music library for listening without leaving the Hub, with straightforward playback and library controls.

Capture all screens, one active window, or a selected region. Browse local captures, preview them, zoom, or float one as a reference.

An optional local history for returning to recent items. Filter or search it, and clear it whenever you choose.

Current conditions, the next 24 hours, and a seven-day outlook. Location lookup and weather cues remain optional.

Review desktop clutter and choose a visual layout template. Files stay on the Desktop; only their visible icon positions change.
Choose Koi or Vinyl Angel above, download the Windows installer, and open it when the download finishes.
The first screen asks for a language before the companion and its services begin. Twelve interface languages are included.
Leave the companion quietly on the desktop, or open one of the little spaces above whenever you need a hand.
A clear summary of what the companions store, when they connect, and how updates are checked.
No ads, accounts, analytics, or telemetry. Local file search stores names and paths in a local index; file contents are not uploaded.
Recent activity, screenshots, playback-resume data, and diagnostic logs can be cleared. The uninstaller asks before removing local app data.
Weather and place lookup are optional. The public Koi no Koe feed and update manifest are checked only for the features you enable.
Updates are checked against the official endpoint, expected product, file size, and SHA-256 value before installation.
The little things people usually want to know before downloading Koi or Vinyl Angel.
Your settings, lists, local search index, screenshots, and recent activity stay on your own Windows device. Optional weather, place lookup, channel feed, and update checks connect only when their features need them.
Download only from this official page and check that the filename matches the companion you chose. A reputation notice can appear for a newer free app; if anything looks different or unexpected, cancel and return here rather than continuing.
Each companion checks the official update information and verifies the expected product, size, and file fingerprint before installing a newer build.
You are welcome to comment beneath any video on the official Koi no Koe channel and tell me how the companions feel to use.
Perhaps all I can offer you is music. We’ll do our best to make this a place where you feel at ease, and hope you carry a little hope with you through every day.
Subscribe @KoinoKoeA tiny invitation
Before your new companion settles onto the desktop, would you like to leave a small wish here? It does not have to be grand—just something your heart wants to remember today.