Agricision onTrak vs a phone app
Short answer
Agricision onTrak is hardware: a bonnet-mounted GPS receiver and LED light bar that pairs with a free iPhone or iPad app, costing £825 (onTrak) or £1,125 (onTrak ion) ex VAT. Agricision quotes 20–30 cm pass-to-pass on a free signal, better than a phone, where a dual-frequency iPhone is typically 0.5–0.7 m (90% within 1.4–1.8 m) under open sky. Tractor GPS – Field Guidance uses only the phone, for £49 a year in the UK (US$89 in the US).
Updated · Oran Dynamics
Details for Agricision onTrak are taken from its public App Store or Google Play listing and website as of 20 October 2026 (sources below). \"Not stated\" means the listing doesn't say. Corrections: [email protected].
At a glance
| Tractor GPS – Field Guidance | Agricision onTrak | |
|---|---|---|
| What it is | Phone/tablet app | GPS receiver + LED light bar + free app |
| Cost | £49/year UK, US$89/year US | onTrak £825, onTrak ion £1,125 (ex UK VAT); veriTrak corrections £180/year |
| Accuracy | Phone GPS: 0.5–0.7 m typical on a dual-frequency iPhone; up to ~5 m on older iPhones | 30 cm (onTrak) / 20 cm (ion) pass-to-pass on free signal; 5–10 cm with veriTrak (ion). "Estimates only" |
| Guidance | A-B lines, automatic field lines, 0–10 headlands | AB lines |
| Coverage | Yes | Yes |
| Steering | You steer | You steer ("for guidance only") |
| App rating (US) | 4.63 (3,372) | 3.7 (30) |
Who Agricision onTrak suits
- You need better than phone accuracy but don't want autosteer: 20–30 cm pass-to-pass is a real step up.
- You want a physical light bar on the bonnet.
- You'd rather buy once than subscribe.
Where Tractor GPS – Field Guidance fits better
- Your jobs suit phone accuracy: spreading, spraying, slurry or topping with wide implements.
- You'd rather not fit hardware, or want to try guidance for the cost of a trial.
- You want automatic field lines, headlands and a job planner.
Full comparison of all the main apps: tractor GPS apps compared.
Questions
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£825 for onTrak and £1,125 for onTrak ion, excluding UK VAT; veriTrak corrections are £180 a year (Agricision shop, 20 Oct 2026).
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Agricision quotes 30 cm (onTrak) and 20 cm (onTrak ion) pass-to-pass on the free signal, and 5–10 cm with veriTrak on the ion, as estimates.
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No. Agricision says the system is for guidance only.
Sources (read 20 October 2026)
- Agricision onTrak app, US App Store: https://apps.apple.com/us/app/id1128191977
- Agricision shop (prices ex VAT, accuracy): https://www.agricision.com/shop
- Agricision accuracy note: https://www.agricision.com/accuracy
- veriTrak: https://www.agricision.com/veritrak
- Tractor GPS – Field Guidance, US App Store: https://apps.apple.com/us/app/id1661207294
- App Store ratings: iTunes Lookup API, US storefront
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