LaneSync - Sprint Timer
Finish-line timing for track
About
This app transforms iPhones and Apple Watches into a wireless finish-line timing system for sprints. It uses body-pose detection to film the finish line and automatically record runner times, with manual refinement available. All data is stored locally on your devices.
What's New in LaneSync
1.0.2
October 22, 2026
Better Apple Watch timing: • Start times from your watch are now matched correctly even if your phone or watch went to sleep before filming. • Your watch re-syncs its clock when filming starts, for more accurate times. Plus small fixes and improvements.
MoreSubscriptions & In-App Purchases
LaneSync Pro Monthly
Unlimited workouts, exports and charts
Developer apps
FAQ
Does LaneSync have ads?
No, LaneSync is ad-free. The app prioritizes user privacy and does not include advertisements or analytics tracking.
How does LaneSync compare to traditional timing systems?
LaneSync offers a wireless, software-based solution using existing Apple devices, eliminating the need for expensive extra hardware. It provides automatic timing with manual refinement capabilities, similar to fully automatic timing systems.
What devices are compatible with LaneSync?
LaneSync is compatible with iPhones, iPads, and Apple Watches. An iPhone and an Apple Watch can be used as the starter, or two iPhones can be used for the start and finish.
What are the subscription options for LaneSync Pro?
LaneSync Pro is available as a monthly subscription for $4.99 or a yearly subscription for $39.99. Both options include a 7-day free trial for new subscribers.
Can I use LaneSync offline?
Yes, LaneSync is designed to work without an internet connection, Wi-Fi network, or extra hardware. The devices communicate directly with each other.
What happens to my data if my subscription ends?
All your saved data, including history, results, badges, and clips, remains accessible even if your subscription ends. You can continue to view and manage your recorded sessions.
How accurate are the times recorded by LaneSync?
LaneSync measures and corrects clock drift between devices. Times are displayed in hundredths of a second, rounded up to mimic the precision of fully automatic timing systems.
What age rating does LaneSync have?
LaneSync has an age rating of 4+, making it suitable for a wide range of users including younger athletes and students.
