From the DonkeyCat family

Small tools. More room for your day.

Our story started with a card game. The same curiosity also leads to apps that make everyday life a little easier. Here are three Mac tools from Coolplay, the studio that grew out of DonkeyCat.

Based in Vienna, Coolplay makes games and useful apps. Alongside classic board games, its team builds focused tools for the way we use our computers.

Find your flow

WindowHopper

For Mac · macOS 12 or later

Find the window you meant.

WindowHopper is a keyboard-driven window and browser-tab switcher for Mac. Press a shortcut, type part of a title or URL, and jump to the window you need. It is useful when a project has spread across documents, browser tabs and several apps.

Favorites and tags keep frequently used windows close at hand. WindowHopper runs locally on your Mac and is available as a one-time purchase.

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Set the mood

Music MCP

For Mac · macOS 14 or later

Let your AI find the music.

Music MCP connects an MCP-compatible AI assistant to Apple Music on your Mac. Ask for music to match your mood, search for an artist or build a listening queue without leaving your conversation.

The menu bar app can also save playlists when you allow library changes. An Apple Music subscription is required for playback; access to your library and listening history is optional.

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Finish the paperwork

Signature MCP

For Mac · macOS 14 or later

Your assistant asks. You sign.

Signature MCP lets an MCP-compatible AI assistant request a handwritten signature on your Mac. Review the document in a window, draw your signature and place it on the PDF before confirming.

The assistant receives the signed PDF or a signature image for the task. Each request needs your participation, and the app supports company details and stamps for document workflows.

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