Odometer Plus
Kalman-filtered GPS trip computer and windshield HUD. 100% Free.
Test Odometer Plus Engine in Browser
Simulate Kalman-filtered GNSS velocity tracking and windshield HUD night projection.
Odometer Plus is a dedicated GPS telemetry computer engineered for classic vehicle owners, long-distance motorcyclists, sailors, and cyclists whose instruments lack accurate trip odometers.
Most navigation and speed tracking apps log your location coordinates to monetization servers. Odometer Plus treats location strictly as private on-device math: coordinates are filtered locally via Kalman state-estimation to eliminate satellite drift and speed jitter.
100% free with a mirrored HUD mode: place your phone on the dashboard at night to reflect high-contrast speed and trip mileage directly onto your windshield without distracting reflections.
- Category
- UTILITY
- Platform
- ANDROID
- Binary Size
- 5.1 MB
- Min Target OS
- Android 8.0+
- Version
- 1.2.8
- Offline Ready
- 100% On-Device
- Telemetry Trackers
- 0 Trackers
- Advertisements
- Zero Ads
- Monetization
- 100% Free
Deterministic GPS telemetry without location harvesting
Extended Kalman State Filtering
Custom statistical filter eliminates stationary GPS drift, tunnel signal loss artifacts, and high-speed telemetry jitter.
Windshield HUD Night Mirroring
Invert and mirror typography with one tap to project crisp digital speed and distance readings onto your windshield at night.
Dual Independent Trip Meters (A & B)
Simultaneously track total journey distance and leg distance with independent reset and pause controls.
Battery-Conserving Architecture
Native GNSS listener throttles battery consumption to under 1% per hour during extended 10+ hour road trips.
Local GPX / CSV Export
Export your route logs directly to your local file storage without intermediaries, cloud sync accounts, or tracking.
100% Free & Open
Zero subscription fees, zero ads, and zero feature paywalls.
Odometer Plus vs Legacy Alternatives
| Metric | Odometer Plus (Outlayer Labs) | Standard App Store Apps |
|---|---|---|
| Price | 100% Free (Zero Subscriptions, Zero Ads) | $4.99/month or ad-cluttered screens |
| Location Privacy / Data Egress | 0 Bytes (Never leaves device) | Transmitted to cloud ad platforms |
| Battery Consumption | Ultra-low (~1.2%/hr) | High (5–12%/hr with background sync) |
| Windshield HUD Mode | High-contrast vector mirror included free | Locked behind subscription paywall |
Interface Previews & Telemetry
Primary Cockpit
High-visibility speed, trip odometer, and elevation
Windshield HUD Mode
Mirrored typography for night dashboard projection
Trip Summary
Elapsed time, moving average, and max speed
100% Free. Zero Ads. Zero Subscriptions.
All tools built by Outlayer Labs are permanently free to download and use with zero advertising, zero subscription paywalls, and zero cloud lock-in.
Odometer Plus processes all data in local sandboxed memory.
Read the complete legal verification and hardware permissions audit detailing on-device execution.