Multi-lane swim interval clocks for coaches, on iPhone, iPad and Apple Watch.
Program each lane’s practice once, tap Play, and every lane runs on its own interval automatically. Glance at your wrist instead of calling send-offs off the wall clock.
Questions, bug reports or feature ideas? Email wavmaker11@gmail.com with “Pace Clock Plus” in the subject. Please include your device and OS version, and what you were doing when the problem happened.
You can also open an issue if this repository has issues enabled.
How do I add a lane? Tap + on the lane screen, name the lane, pick a color, and add blocks and sets. Tap and hold a lane to edit, duplicate, reset or delete it.
What do Back, Next Rep and Play do when a lane is paused?
This lets you pause to talk to swimmers and then start the clock exactly when you call the next send-off.
What does Sync to Wall Clock do? It nudges running lanes to the nearest 10-second mark (1:48 becomes 1:50, 1:52 becomes 1:50). It never changes the current rep or set. Use it to correct drift against the pool’s wall clock during long blocks. You’ll find it in Settings on both the phone and the watch.
Why is my phone silent? The phone and iPad are silent by default. If you use the phone without a watch, turn on Phone cues in Settings for a sound and haptic at each interval rollover.
Do my clocks keep running if I switch apps or lock my phone? Yes. Clock positions are calculated from each lane’s start time, so they are correct the moment you return to the app. On the watch, a workout session keeps the app running with your wrist down. Because of that, the watch may ask for Health permission the first time you start a lane.
Do the iPhone and iPad share lanes? No. The iPhone and Apple Watch sync with each other. The iPad keeps its own lanes.
The watch says “Not reachable”, but my lanes sync. That’s expected. Lanes sync in the background and are delivered whenever the watch and phone can talk to each other.
My lanes aren’t syncing to the watch. Make sure the iPhone and watch are paired and the Pace Clock Plus watch app is installed. Open the app on both devices once. If it still doesn’t sync, email support with your iOS and watchOS versions.
How do I start a lane at a different time from the others? Each lane has its own play button for staggered starts. Play All starts every lane together.
Pace Clock Plus is an independent app and is not affiliated with Apple Inc. Apple Watch, iPhone and iPad are trademarks of Apple Inc.