Spark

A private, local macOS menu-bar app for finding one-to-one Messages chats that may need a follow-up.

What it does

• Follow Up: chats where your latest non-reaction message may need a follow-up.
• Respond: chats where the other person's latest non-reaction message is awaiting you.
• Suggested: prioritizes questions and requests; All includes every eligible chat.
• Dismiss a message or ignore a conversation to keep the queue tidy.

Set a minimum follow-up age and a maximum age for stale conversations in Settings. Group chats and reactions are excluded from the latest-message calculation.

Get started

1. Open Spark.xcodeproj in Xcode and run the Spark scheme.
2. Grant the development app Full Disk Access in System Settings → Privacy & Security.
3. Open the menu-bar item and choose Refresh.

Privacy

Spark reads Messages locally and in read-only mode. It has no backend, networking, telemetry, or analytics. Latest-message text is used only transiently for optional local ranking and is never stored or sent.

Read the privacy policy.

Develop and test

Run the unit tests:

xcodebuild test \
  -project Spark/Spark.xcodeproj \
  -scheme Spark \
  -destination 'platform=macOS,arch=arm64' \
  -only-testing:SparkTests