Open Road Ace: GPS Rally Timer

In-app purchases
Content rating
Everyone
1+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Open Road Ace turns your phone or head unit into a pacing computer for open-road races and time-speed-distance (TSD) rallies. Pick a course, set your target speed, and chase a perfect-pace rabbit. A live delta tells you how far ahead or behind class pace you are, at every gate, every corner, every mile.

BUILT FOR THE DASH
An interface made to be read at speed from a mount or a head unit: a flat dark ground, one big number, and a pace ribbon where a small car (you) chases a rabbit (your target). Green means speed up, red means slow down. Before the start you see your distance to the start line. The screen stays awake and at full brightness while the app is open.

KEY FEATURES
• Perfect-pace rabbit: a virtual target running your exact class pace, in real time.
• Multi-leg courses with gate-by-gate timing and finish gate detection.
• Built-in courses (BBORR North, BBORR South, NORC North, NORC South) plus unlimited custom courses via GPX import.
• RaceBox and ArduSimple BLE GPS support for 10 to 25 Hz precision tracking.
• Full RTK pipeline: NTRIP corrections from any caster, for centimeter-level positioning when paired with ArduSimple.
• Optional Kalman filter for smooth position output even on lower-rate GPS.
• Countdown beeps, target-speed dial, automatic foreground service.
• Run history with full GPX export.

One-time purchase. No subscription. No ads. No tracking.

Designed for time-speed-distance (TSD) rally, vintage racing, and any open-road event where holding class pace matters. Built by drivers, for drivers.

Full privacy policy: https://kyros.works/ora-privacy
Real-time pacing for open-road races. Hold your class speed to the hundredth.
Updated on
Oct 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Finds Open Road Ace RTK bases on its own, including the new Big Bend ones, and switches to the nearest as you drive.
Timed starts give you at least 5 s after START. The green comes only from GPS time; before that, watch the tree and tap START on green.
M10 receivers on USB get the right setup for 10 positions a second.
After a run, you're told if a GPS jump may have affected your time.
Content rating
Everyone
In-App Purchases
Learn more

App support

Phone number
+13462917398
About the developer
KyrosWorks LLC
will@kyros.works
1812 Elmen St Houston, TX 77019-5704 United States
+1 346-291-7398