The short version
- GEODNET lists $40/mo ($400/yr on an earlier listing). Point One lists $42/mo for Virtual RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.Full definition (about 10 cm) and $125/mo for True RTK (1–3 cm).
- So for inch-level work, GEODNET is cheaper on paper. Point One's cheaper plan is a lower-accuracy product.
- Point One builds its own Base stationA GNSS receiver sitting still on a known spot. It figures out how wrong the satellite signals are right now and shares that as corrections.Full definition (it says 30–40 km apart). GEODNET's stations are hosted by the community, so spacing varies.
- Point One offers a 14-day free trial with no credit card. It also powers Emlid Corrections on supported Reach receivers.
- Try both free trials at your actual job site before you pay.
Side by side
Every cell comes from the operator's own pages (or the source linked). "Not published" means they don't say.
| Point One Navigation Polaris | GEODNET RTK | |
|---|---|---|
| Prices | Virtual RTK (SSR-based, country-wide): $42/mo per license (per earlier ArduSimple/E38 listing; annual saves $100/yr per license) True RTK (network RTK): $125/mo per license; annual saves $300/yr per license Enterprise: Contact sales | RTK subscription, monthly: $40/mo per device RTK subscription, annual: $400/yr per device (per earlier listing) |
| Free trial | 14 days, no credit card required; includes Virtual RTK or True RTK on one license | Free RTK trial offered (link on store page) |
| Contract | Monthly or annual billing per license | Monthly auto-renew, cancel anytime |
| Coverage | US nationwide | Global community-built network |
| Stations | Not published; the public SourcetableThe list of every mount point a caster offers. Your app shows it when you connect without picking one.Full definition listed 4 mountpoints on Oct 17, 2026 (network products plus any single-station streams) | Not published; the public sourcetable listed 6 mountpoints on Oct 17, 2026 (network products plus any single-station streams) |
| How the network works | Own-built base stations at 30-40 km spacing (operator claim) | Decentralized (DePIN) network of community-hosted base stations; CorrectionsLive info from a base station about how far off the satellite signals are, so your rover can cancel out the error.Full definition best within about 20 km of a station |
| Formats | RTCMThe common format RTK corrections are written in, so different brands can understand each other.Full definition.2 MSM4 over NTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.Full definition (or Point One RTK protocol) | RTCM 3.2 |
| Datum | ITRF2014, NAD83, ETRS89 (others for non-US regions) | Not published |
| Receivers | Any RTK-capable receiver that accepts RTCM 3.2 MSM4; powers Emlid Corrections on supported Reach receivers | Not published |
| NTRIP CasterThe internet server that hands out correction streams. Your rover logs in to it, like tuning into a radio station.Full definition | host polaris.pointonenav.com · PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.Full definition 2101 · AUTO, LOCAL, POLARIS, POLARIS_LOCAL | host rtk.geodnet.com · port 2101 · AUTO, AUTO_ITRF2020, AUTO_ITRF2014, AUTO_WGS84, BRDC, NATRF2022One of the new US reference frames NOAA plans to use in place of NAD 83.Full definition |
| Sources | [1] [2] [3] | [1] [2] [3] [4] |
Checked Oct 16, 2026 · Prices change, so confirm with the operator before you buy · Report a change