Works 100% Offline

Save chemicals.
Drive straight.

GPS parallel driving app that helps you spray and fertilize without overlaps. No subscription. No internet needed. Just your phone and GPS.

Agro Navigation app screenshot - GPS parallel driving

$24.99

One-time purchase

0%

Subscription

10–20cm

With DIY receiver

100%

Offline

Everything you need in the field

Simple, fast, and works where you need it most — out in the field, far from any cell tower.

Works Without Internet

No cellular signal, no Wi-Fi, no problem. Agro Navigation runs entirely on your phone using GPS satellites — always available, even in the middle of nowhere.

Visual Trail

See exactly where you've worked on the screen. Every pass is tracked, so you never overlap or miss a strip. Your field, fully visible.

DIY GPS Receiver

Not happy with phone GPS? Build your own Bluetooth receiver for about $50. Get 10–20 cm accuracy — same as commercial systems that cost thousands.

Built-in Compass

Accurate heading from your phone's compass, with manual correction for tricky devices. GPS heading fallback when no compass is present.

Save & Export Tracks

Save your field tracks and come back to them anytime. Export as KML to review your work on any map application.

3 Steps to Start

Set direction. Start working. Adjust width. That's it — no complicated setup, no tutorials needed. Just follow the green lines.

Ready in 3 simple steps

1

Set Direction

Drive to your starting point, align the tractor, and tap "Set." Green guide lines appear in your work direction.

2

Start Working

Tap "Start" and a visual trail appears behind your tractor, showing exactly where you've covered.

3

Adjust Width

Make your first turn, then set the working width with the slider. Now just follow the green lines.

Professional accuracy at a fraction of the cost

Build your own GPS/GLONASS receiver for about $50. It connects to your phone via Bluetooth and delivers 10–20 cm accuracy — comparable to commercial navigation systems that cost thousands. Complete step-by-step instructions on our GitHub.

View on GitHub
Hardware System
$2,000+
10–20 cm accuracy
Agro Navigation + DIY
~$75
10–20 cm accuracy

Common questions

Yes, 100%. Agro Navigation runs entirely on your phone using GPS/GNSS satellites. No cellular signal, no Wi-Fi, no data connection needed. Your satellites are always available, even in the most remote fields.
With your phone's built-in GPS: typically 1–3 meters under open sky. With our DIY Bluetooth receiver: 10–20 cm — enough for spraying and fertilizing. Accuracy depends on your device's GPS/GNSS receiver quality.
No. Agro Navigation is a one-time purchase of $24.99. No recurring fees, no hidden costs, no surprise charges. You buy it once and it's yours forever, including all future updates.
It's a GPS/GLONASS receiver you can build yourself for about $50 using off-the-shelf components. It connects to your phone via Bluetooth and delivers professional-grade accuracy. Complete building instructions on GitHub.
Most modern smartphones with good GPS work well. Even iPhone 7 draws accurate tracks. Keep your phone close to the windshield for best satellite reception and away from metal dashboards.