PeerClock Metronome
Music
Free · Designed for iPad
PeerClock Metronome is a P2P-synchronized metronome for Apple devices.
Just connect multiple devices to the same Wi-Fi — no server needed. All devices automatically discover each other and sync their clocks with ±2ms precision using NTP-style 4-timestamp exchange.
Features:
• Peer-to-peer — no master/slave, every device is equal
• ±2ms clock synchronization
• Wi-Fi only — no external server, no internet required
• Auto-discovery — connect to the same Wi-Fi, that's it
• Visual conductor path animation with brush-stroke style
• Multiple time signatures: 4/4, 3/4, 4/8, 3/8, 6/8, 9/8, 12/8
• Live BPM changes sync across all connected devices
• Built on PeerClock — an open-source P2P clock sync framework
Perfect for musicians, bands, and ensembles who need synchronized timing across multiple devices without relying on cloud services.
Ratings & Reviews
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Bug fixes and improvements.
The developer, Hakaru Hirose, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hakaru Hirose
- Size
- 9 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Spanish, Swedish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Hakaru Hirose